ISSUE1362019 Periodical Publication of TUSAS Engine Industries, Inc.

FIRST NATIONAL T700-TEI-701D ENGINE OF TURKEY DELIVERED TO TURKISH AEROSPACE

GROUNDBREAKING CEREMONY HELD FOR R&D TEST CENTER PROCUREMENT AND COOPERATION AGREEMENT FOR ADDITIVE MANUFACTURING MACHINES EXECUTED

FROM Dear TEI Post Readers, We are happy to meet you again in the 136th issue of the TEI THE EDITOR Post. “Cover Story” of this issue features the delivery ceremony of the first 4 national T700-TEI-701D model turboshaft engines, produced as part of the Turkish Utility Helicopter Program delivered to Turkish Aerospace on May 13, and the T700 Engine Production Test Cell opened by Mr. Mustafa Varank, the Minister of Industry and Technology.

Under the sections “Activities & Projects” and “News About TEI”, we have tried to share the latest developments about our company.

“Achievement Board” section emphasizes the highly prestigious awards granted to our company such as Employee Engagement and Most Female Friendly Company.

You can read the stories of Pergamon, the city of the firsts, under the section “Travel”.

See you in our 137th issue...

IMPRINT

For and on Behalf of TEI Head Office Address Prof. Mahmut F. Aksit TUSAS Engine Industries, Inc. Esentepe Mah. Cevreyolu Bulvari Executive Editor No: 356 26210 Yeliz Cetinkaya Tepebasi / Eskisehir-Turkey Executive Editorial Tel: +90 (222) 211 21 00 Consultant Fax: +90 (222) 211 21 01 Mahmut Serhan Sokmen www.tei.com.tr Managing Editor Publisher Senay Dortkasli Dumat Ofset Matbaacilik Bahcekapi Mah. 2477 Sok. No: 6 Editorial Board Sasmaz / Ankara Ezgi Cetin Dincer Tel: +90 (312) 278 82 00 Denizgun Dag Demir Erkan Balk Publication Type Regional Periodical Editor Nezir Onal Printing Date 30.07.2019 Digital Art Director Derya Polat Printing Period February-July Production

All rights are reserved on behalf of TUSAS Engine Industries, Inc.

04 TEI POST

CONTENTS CONTENTS CONTENTS CONTENTS CONTENTSCONTENTS CONTENTS CONTENTS CONTENTS CONTENTS

08 (Cover Story) FIRST NATIONAL T700-TEI-701D ENGINE OF TURKEY DELIVERED TO TURKISH AEROSPACE

30 (News about TEI) PROCUREMENT AND COOPERATION AGREEMENT FOR ADDITIVE MANUFACTURING MACHINES EXECUTED

53 (News About the Aviation Ind.) TEI assumes the duty of engine HYBRID THRUST SYSTEMS sub-contractor in charge of licensed By Ali Canpolat production and technical support for the T700-TEI-701D engines to power the T70 “Turkish Blackhawk” 92 (By TEI Employees) Utility Helicopter to be manufactured IGNORE THE BARRIERS by Turkish Aerospace as part of the By Ibrahim Oguz Turkish Utility Helicopter Program. 94 (Hobbies of Our Employees) FREEDOM IN DEEP BLUE By Sule Ozcan

MAIN HEADINGS

07 MESSAGE FROM THE PRESIDENT & CEO 40 ACHIEVEMENT BOARD 74 EVENTS 111 TEI ANNOUNCEMENTS 08 COVER STORY 42 TECHNICAL ARTICLES 82 SOCIAL RESPONSIBILITY 112 PERSONAL DEVELOPMENT FIRST NATIONAL T700-TEI-701D ENGINE 46 NEWS FROM THE AVIATION 88 BY TEI EMPLOYEES PROF. ACAR BALTAS OF TURKEY DELIVERED TO TURKISH SELF-CONFIDENCE? SELF-ESTEEM? INDUSTRY 94 HOBBIES OF OUR EMPLOYEES AEROSPACE BY SULE OZCAN-FREEDOM IN DEEP BLUE 114 HEALTH 56 NEWS ABOUT OUR EMPLOYEES MINE SENARSLAN, NUTRITIONIST AND DIETITIAN 14 ACTIVITIES AND PROJECTS BY CEM TAT-ADRENALINE-FULL EXPERIENCE PART AND MODULE MANUFACTURING 58 VISITORS 9 NUTRITION SUGGESTIONS TO BOOST THE 100 SOCIAL CLUBS IMMUNE SYSTEM PROJECTS 62 EXHIBITIONS & ORGANIZATIONS HUMAN RESOURCES PROCESSES 102 TRAVEL 73 ENVIRONMENTAL AND 30 NEWS ABOUT TEI BY ONUR AYDIN OCCUPATIONAL SAFETY PERGAMON ANCIENT CITY

05

MESSAGE FROM THE PRESIDENT & CEO

FIRST NATIONAL T700-TEI-701D ENGINE DELIVERED TO TURKISH AEROSPACE

In the first day of Paris Air Show, one of the most prestigious air show held in Paris between June 17-23, we executed an agreement for procurement of additive manufacturing machines and entering into cooperation with GE Additive. Accordingly; the new GE Additive M Line and M2 systems will be installed at TEI, which will supplement the currently available fleet of our company including bed powder metal powder melting machines. This will reinforce the leading position of Turkey in this field.

In consequence of the Employee Engagement Survey conducted across out company for 2018, we were again granted with an award in the category of “Employee The first half of 2019 witnessed important developments Engagement", like the previous year. TEI became the first for both our company and our country. We have made company granted with an award among the other aviation many great achievements especially under the Turkish and defence industry companies, which is a further source Utility Helicopter Program. The first of these achievements of pride for us. We were also granted with the award of was opening of the Production Test Cell for the "Respect for Human Being” by kariyer.net. T700-TEI-701D engines produced at our company to power the Turkish Blackhawk Helicopters. Thanks to this Besides the significant developments we achieved in our test cell, we are now capable of testing all T700 series field of activities, we have also continued to engage in engines available at our country and in the inventories of social responsibility activities during this period. As part of all countries where we hold the respective license. The the traditional TEI Intelligence Workshop Project, we built first 4 national T700-TEI-701D engines were delivered to intelligence workshops at Metin Sonmez Primary School the Turkish Aerospace Industries, Inc. on May 13, which and Sehit Osman Gazi Altinoluk Primary School in the first marks an important achievement of us. I think that the half of 2019. Furthermore; we have been granted with an progress of the project is an important milestone award by the Institute for Women of Aviation Worldwide for both our country and our company, and extend my for the 3rd time thanks to the activities we held for March sincere thanks to all our employees who have exerted 8th the Women of Aviation Worldwide Week, and voted for their efforts in this project. the “Most Female Friendly Corporation Worldwide” among the other participating companies from 39 countries. We held the Groundbreaking Ceremony for Turboshaft R&D Test Center Buildings as part of the Turboshaft I believe that our company will keep achieving much more Engine Development Project we carry out under the things with the valuable contributions of you all. supervision of the Presidency of Defence Industries (SSB). The construction process of our test center, to be built as Greetings and best regards, 2 separate buildings including the Turboshaft R&D Test Center Building & Turboshaft Prototype Workshop and the Prof. Mahmut F. Aksit Office Building is ongoing at full steam. Chairman & CEO, TEI

07 COVER STORY

FIRST NATIONAL

OF TURKEY DELIVERED TO TURKISH AEROSPACE

TEI will deliver a total of 218 engines to be used on the platform and 30 auxiliary engines including 12 optional auxiliary engines to Turkish Aerospace by the end of 2025 as part of the program. TEI will also provide technical support services for T70 helicopters during their lifecycles of around 30 years.

Surrounded by sea on three sides with There are multiple helicopter a total coastline of 8,333 km including programs carried out simultaneously TEI assumes the duty of the islands, Turkey is bordered by 8 for our country. Turkish Utility engine sub-contractor in different countries across Europe and Helicopter Program (TUHP) is the first charge of licensed production the Middle East. Its topography, which domestically-produced helicopter and technical support for consists of uneven mountainous areas program carried out by Turkish the T700-TEI-701D engines higher than 1,000 meters and where Aerospace Industries, Inc. as the main to power the T70 “Turkish earthquakes and forest fires might contractor under the supervision of Blackhawk” Utility Helicopter have huge environmental and human the Presidency of Defence Industries to be manufactured by impacts, is highly challenging. Use (SSB) of the Republic of Turkey. Under Turkish Aerospace as part of of helicopters is a necessity rather the scope of this program, substantial the Turkish Utility Helicopter than luxury in line with the current progresses and developments are Program. conditions and technological means achieved every day. There are a total for our country which is situated at a of six authorities in need of the goods, location witnessing many challenging and end users under the TUHP. A total geopolitical developments such as of 109 T70 model utility helicopters wars, mass migrations and terrorist equipped with different configurations, acts. developed for various needs, will be

0808 TEI POST

delivered to the Turkish Land as part of the Turkish Utility Helicopter modules and parts of the engines Command, General Command of Program. as part of the business share of Turkish Gendarmerie, Turkish Air TEI, and mounting of the complete Forces Command, Turkish Special TEI will deliver a total of 218 engines engine assembly, as well as final Forces Command, Turkish National to be used on the platform tops and testing, configuration management Police and General Directorate of 30 auxiliary engines including 12 and logistic support services Forestry. TEI assumes the duty of optional auxiliary engines to Turkish thereof will be carried out by TEI. engine sub-contractor in charge of Aerospace by the end of 2025 as part Hot spot parts such as high-cycle licensed production and technical of the program. TEI will also provide combustion chamber () support for the T700-TEI-701D technical support services for T70 during the lifetime of the engine will be engines to power the T70 “Turkish helicopters during their lifecycles of manufactured by TEI in Turkey for the Blackhawk” Utility Helicopter to be around 30 years. Manufacturing of first time. manufactured by Turkish Aerospace

09 OPENING OF T700 ENGINE and needs of our country. Being a PRODUCTION TEST CELL production verification test cell, T700 T700 Engine Production Test Cell was Engine Production Test Cell is capable established at TEI in order to perform of performing engine tests under hot the pass-off and acceptance tests of day conditions by conditioning the T700-TEI-701D turboshaft engines inlet air. produced by TEI as part of the Turkish Utility Helicopter Program. Thanks to This feature makes it a first in our T700 Engine Production Test Cell, we country, and one of the few facilities are now capable of testing all T700 across the world. T700 Engine Prof. Mahmut F. Aksit series engines available at our country Production Test Cell, established Chairman & CEO, TEI and in the inventories of all countries accordingly, was opened on January Delivering the keynote speech during where we hold the respective license. 4 upon participation of Mustafa the ceremony, Prof. Mahmut F. Aksit, During the establishment process Varank, the Minister of Industry Chairman & CEO, TEI, said: “Our of the test cell, we preferred to use and Technology of the Republic of country is going through a substantial a dynamometer equipped with the Turkey. The opening ceremony was change and transformation process capacity to test the turboshaft engines also attended by Ozdemir Cakacak, in the defence industry. We, as TEI, up to 3,500 shp considering the Governor of Eskisehir, and Mustafa are proud of producing a helicopter growth objectives of our company Elitas, Chairman of the Committee engine equipped with 2,000 shp for the on Industry, Trade, Energy, Natural first time in Turkey under the scope of Resources, Information and the Turkish Utility Helicopter Program T700 Engine Production Technology of the Grand National commissioned in 2016 as part of this Test Cell was established Assembly of Turkey (GNAT) and transformation process and to meet at TEI in order to General Atilla Gulan, Commander the needs of our army. Thanks to perform the pass-off of Combatant Air , and Jale T700 Engine Production Test Cell to and acceptance tests of Nur Sullu, Metin Nurullah Sazak and be opened today, all these engines T700-TEI-701D turboshaft Arslan Kabukcuoglu, Ph.D., Members will be tested, their quality levels will engines produced by TEI of the Parliament for Eskisehir, as well ve confirmed and they will be made as part of the Turkish as the Protocol Members of Eskisehir. Utility Helicopter Program. available to be used by our army.”

1010 Mustafa Varank Minister of Industry and Technology of the Republic of Turkey Expressing his feelings during the opening ceremony, Mustafa Varank, Minister of Industry and Technology of the Republic of Turkey, said: “The Test Cell to be opened today will enable to Ozdemir Cakacak Mustafa Elitas test the turboshaft engines to be used The Governor of Eskisehir Member of the Parliament for Kayseri and Chairman in the Turkish Black Hawk Helicopters. of the Committee on Industry, Trade, Energy, Natural Accordingly, TEI will not only be able Resources, Information and Technology of GNAT Taking to the stage after him to deliver to produce and export turboshaft his speech, Ozdemir Cakacak, Governor Delivering a speech after the Governor engines, but also enable to perform the of Eskisehir, said: “Our country is going of Eskisehir, Mustafa Elitas, Member production tests of all T700 engines through a substantial development and of the Parliament for Kayseri and for the first time in our country. The transformation process in all fields. Chairman of the Committee on current position of TEI held after 34 Eskisehir also receives it share from Industry, Trade, Energy, Natural years is blinding and serves as a model this transformation and development Resources, Information and in terms of both the added value it process. Eskisehir has been making a Technology of the Grand National provides to economy, and meeting name for itself in many fields, especially Assembly of Turkey (GNAT), uttered: the strategic priorities of our country. aviation and rail systems in the recent “Our country is taking great initiatives This is why it is highly important and years. TEI, the honor of our province and in the defence industry, like all fields. meaningful to know that at least one country with its nearly 2,500 employees, Today I found the opportunity to of every two aircraft flies with the parts realizes many successful projects in observe the current stages of all manufactured by TEI globally.” a row, filing our province and country projects at TEI, and I'm so glad to with pride. I hope that T700 Engine be here with you at TEI which is the Upon completion of al speeches, Production Test Cell, to be opened today source of pride for Turkey. I hope that the opening ceremony was held by TEI providing great contributions to this facility, to be opened today, will gloriously in participation of all protocol make our defence industry domestic and be good for our country.” members. Mr. Varank, the Minister, national, will turn out to be good for our examined the test cell, he opened, province, country and honorable nation, and the T700-TEI-701D engine to be especially our defence industry.” produced.

11 COVER STORY

DELIVERY CEREMONY OF 4EA T700-TEI-701D MODEL TURBOSHAFT ENGINES

The first 4ea T700-TEI-701D model turboshaft engines, produced as part of the Turkish Utility Helicopter Program, were delivered to Turkish Aerospace Industries, Inc. on May 13. The Delivery Ceremony was attended by Prof. Ismail Demir, President of Defence Industries of the Republic of Turkey, and Ozdemir Cakacak, Governor of Eskisehir, and Harun Karacan, Metin Nurullah Sazak and Arslan Kabukcuoglu, Ph.D., Members of the Parliament for Eskisehir, and Air Commodore Gurhan Ergurhan, 1st Air Maintenance Facility Manager of the Ministry of National Defence, and Prof. Tuncay Dogeroglu, Rector of Eskisehir Technical University, and the Protocol Members of Eskisehir.

During the ceremony, Prof. Ismail Demir, President of Defence Industries of the Republic of Turkey, emphasized that the companies which take step towards, makes an investment in, and enters into a partnership with Turkey will not regret while Prof. Mahmut Faruk Aksit, Chairman & CEO, TEI, said that the engines, produced and delivered by TEI in Eskisehir, are a part of the domestic production project of the Turkish Utility Helicopter Program as needed by our army, and that TEI's responsibility will not come to an end upon delivery of the engines, and that all maintenance, repair and preservation supports will be provided by TEI during the operational period of the engines.

1212 TEI POST

Our country is going through a substantial change and transformation process in the defence industry. We, as TEI, are proud of producing a helicopter engine equipped with 2,000 shp for the first time in Turkey under the scope of the Turkish Utility Helicopter Program commissioned in 2016 as part of this transformation process and to meet the needs of our army.

TEI VISITED BY END USERS OF TURKISH UTILITY HELICOPTER PROGRAM

A team of 30 visitors, commissioned to represent the mode turboshaft engine, and to perform on-site authorities of the Turkish Land Forces Command, examinations across the production facility on April 9. General Command of Turkish Gendarmerie, Turkish Air Forces Command, Turkish Special Forces Command, During the visit, the facilities equipped with the only Turkish National Police and General Directorate of T700-TEI-701D Production Test Cell capability except Forestry which are the end users of the Turkish Utility for GE Aviation globally with the T700 Production Helicopter Program carried out under the supervision Line were introduced to the visitors. The visitors were of the SSB and the coordination of Turkish Aerospace provided with all essential details on the existing and Industries, Inc. visited the premises of TEI in Eskisehir potential T700 engine production, maintenance, repair, in order to make observations on the T700-TEI-701D test, technical service capacity and capabilities of TEI.

13 ACTIVITIESXXXXXXXXX AND PROJECTS

ACTIVITIES BETWEEN JANUARY-JUNE IN 2019

PART AND MODULE MANUFACTURING NEW PART INTRODUCTION (NPI)

In the first 6 months of 2019, 17 NPI projects were completed. 4 of such projects belong to General Electric (GE) and 1 to SAFRAN. 12 of the completed NPIs belong to the Turkish Utility Helicopter Program. More than 1,000 NPI projects (including the indigenous projects) have been completed up until now.

Breakdown of the Completed NPI Projects by Engine Assembly LEAP PROJECT

NPI projects for LEAP engine assemblies were carried were completed in 2019. Additionally, it is planned to out through simultaneous engineering works by complete the initial part manufacturing of the LEAP 1A SAFRAN and GE. So far, 31 different NPIs and 58 stage 1 HPT disk new part project with its NPI activities different configurations were completed in the LEAP initiated, as well as the LEAP 1A forward outer seal new engine program. As part of the LEAP program; 1B configuration project. Furthermore; NPI projects were stage 1 HPT disk, cone torque new part projects and initiated for the new LEAP parts gained as part of the stage 3-4 blisk, bellcrank new configuration projects long term agreement (LTA) executed with GE.

LEAP Engine Parts Manufactured by TEI

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LEAP BLISK PROJECT

As part of LEAP Blisk Project, investment and engineering activities for 5 stage blisk parts with 2 different configurations are maintained in line with the project schedule. • In the first half of 2019, installation of 7 workstations at B1000 building was completed, and the total number of workstations commissioned reached 70.

LEAP Blisk Manufacturing Line

• In the first half of 2019, a total number of 1,680 blisk parts were manufactured with an average of 400 sets for each blisk stage within the scope of LEAP 1A/C and 1B engine programs.

TURKISH UTILITY HELICOPTER PROGRAM

A total of 45 NPI projects have been completed so far including the ones completed in 2019 such as cooling plate, impeller shroud, rotating seal, B sump assembly, inner bal. piston seal, bearing support, bearing seal, turbine shaft, mid frame, main frame, torque shaft NPIs. The Localization Process Verification (LPV) for the completed NPI parts are ongoing.

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TURBOSHAFT ENGINE DEVELOPMENT PROGRAM

Manufacturing processes have started for development Furthermore; manufacturing activities for 82 parts on engines under the scope of the Turboshaft Engine the Full Annular Reverse Flow Atmospheric Combustor Development Project simultaneously with the Setup (FRACS) were initiated in December 2018 and all engineering activities carried out exclusively for 227 parts were manufactured successfully and delivered to parts with the design department. be assembled under the scope of the Turboshaft Engine Development Program.

OPERATIVE UAV ENGINE DEVELOPMENT PROJECT

Design Projects Engineering Management is responsible for 50 parts under the project. Engineering activities were resumed to enable to manufacture parts smoothly on the manufacturing line, and to provide a support to the cost reduction project carried out jointly with the Programs Directorate. Nearly 20 different parts were manufactured in order to be used in the calibration tests, and they were delivered to the design department.

TEI-PD170 Engine

INVESTMENTS

Initiatives for commissioning the investments in 2019 are as follows.

As part of LEAP Blisk Project; As part of LEAP Casing Project; • 1ea 5-axis milling machine, • 2ea 5-axis milling machines, • 2ea CSM (Curved Slot Milling) machines, • 1ea spline planing machine, As part of LEAP Impingement Ring Project; • 1ea shot peening machine, • 1ea CNC fiber laser machine, • 1ea robotic marking machine, • 1ea automatic washing counter, As part of the prototype workshop and Indigenous Engine Projects manufacturing capability As part of LEAP HPT Disk Project; development activities; • 1ea high-speed milling and cornering machine, • 2ea 5-axis milling machines, • 1ea robotic anti-corrosion coating system, • 2ea C-axis horizontal turning machine, • 1ea index broaching machine, • Polymer-layered machine tools, • Automatic washing machine, • 1ea atos machine, • 1ea measuring device with blue light 3D scanning As part of LEAP FOS Project; technology, • 2ea 5-axis milling machines, • 1ea new-generation P600 sinking erosion machine, • 1ea vertical turning machine, In addition to the above mentioned items; • 2ea vertical storage units were engaged.

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NEW TECHNOLOGIES AND AUTOMATION APPLICATIONS

The development activities works and investments, accomplished in 2019, introduced the below-given new manufacturing capabilities:

• Digital error tracking system and Qlik manufacturing reporting mechanisms were commissioned as part of the digital transformation activities for manufacturing. We are also working on the TIMS digital facility application jointly with the Information Technologies Management in line with industry 4.0. Accordingly; the activities are ongoing to integrate the machines on the B1000 blisk and disk lines into the system, and to collect real-time data from the machines, and to display the manufacturing data using the TIMS software.

• Blue Light 3D scanning technology was engaged together with the robotic preparation unit. By this means, it was started to be used to measure the LPC shaft part for the first time in mass production.

• Micro TIG Weld technology process development activities were completed, and the capability to TIG Weld to ultra-thin sectional parts through low heat input was gained. Thanks to the technological gains such as adaptive arcing, low current control and dynamic energy control as part of the “Micro TIG Weld", we'll become more successful in filling-up processes.

• Thanks to the Optical Tools Measurement and Imaging System investment, solid rotating tools can be magnified up to 97 times, enabling to perform 2D diameter, Micro TIG Weld Technology Process length and radius measurements more effectively in a visually-comparable manner.

Optical Tools Measurement and Imaging System

17 ACTIVITIESXXXXXXXXX AND PROJECTS

• The operational efficiency was enhanced thanks to the flame protection cabin, enabling robots and humans work side by side for LEAP blisk plasma coating operation, and the sensor adaptations enabling process traceability and repeatability.

B1000 Interior View of The Thermal Spray Advanced Flame System Identification Sensor

Holding Unit with the Gun Fired

• The investment for the CNC fiber laser machine, which was not among the capabilities of TEI, was completed, and LEAP impingement ring, mixing duct and some lower parts were started to be processes using the fiber laser technology for the first time in order to obtain approval from the customer.

• As a result of the development and engineering activities performed in the Surface Enhancement (Ultrapolish) Process, the capability of simultaneous processing of two LEAP stage5 blisk parts has been acquired, increasing the efficiency.

Ultrapolish Process of simultaneous processing of two LEAP Stg.5 blisk parts

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PROJECTS GROUNDBREAKING CEREMONY HELD FOR TURBOSHAFT R&D TEST CENTER

Turboshaft Engine Development and also to ensure that the test the governmental institutions and Project, carried out under the infrastructure, to be established, will organizations, and many other guests. auspices of the Presidency of be at a sufficient capacity to test the Defence Industries, was initiated engines at different power levels. The center will consist of 2 separate by the Presidency of Defence buildings, namely Turboshaft R&D Industries to meet the domestic The Groundbreaking Ceremony Test Center Building & Turboshaft need for civil helicopter need, for Turboshaft R&D Test Center Prototype Workshop and the Office and the project agreement was Buildings was held on May 13 upon Building. executed on February 7, 2017. participation of Prof. Ismail Demir, Under the scope of the project, it President of Defence Industries, is aimed to produce a domestic and Ozdemir Cakacak, Governor and national turboshaft engine at of Eskisehir, and Harun Karacan, 1,400 shp for GOKBEY Multirole Metin Nurullah Sazak and Arslan Helicopter. Turboshaft Engine Kabukcuoglu, Ph.D., Members of Development Project will bring the Parliament for Eskisehir, and Air along many gains, and it is aimed Commodore Gurhan Ergurhan, 1st to introduce the turboshaft Air Maintenance Facility Manager engine design experience and of the Ministry of National Defence, know-how into our country, as well as the managers from

19 ACTIVITIESXXXXXXXXX AND PROJECTS

INFRASTRUCTURE INVESTMENTS FOR TEST AREA AND DOMESTIC COOPERATIVE INITIATIVES EXPEDITED BY TEI

An infrastructure investment was made at the sample test center located on an indoor area of 300 sqm. inside the TEI Material Testing and Research Laboratory. As part of the laboratory capabilities; tensile test at room and high temperature (2 devices), low- and high-cycle fatigue test (7 devices), creep test (3 devices), crack propagation test (1 device) and main physical tests are now conducted. Additionally, all devices as necessary to perform the materials micro structure examination activities are available in the laboratory inventory. Material Testing and Research Laboratory was approved by Nadcap, the international accreditation agency, for all mechanical tests performed at the laboratory, in a manner to be valid as of June 2019.

Making many investments within its own organization, TEI attaches great importance to domestic sample processing and test supplier development activities. Accordingly; we maintain our cooperation with TUBITAK (the Scientific and Technological Research Council of Turkey) Marmara Research Center and METU (Middle East Technical University) Welding Technology and Non-Destructive Testing Research Application

Center for sample tests, Merit and Bursa Kalip Merkezi Merit for sample processing activities.

This certificate is granted and awarded by the authority of the Nadcap Management Council to: TEI-TUSAS ENGINE IND. INC. Cevre Yolu Bulvari No 356 Tepebasi Eskisehir, 26003 Turkey

This certificate demonstrates conformance and recognition of accreditation for specific services, as listed in www.eAuditNet.com on the Qualified Manufacturers List (QML), to the revision in effect at the time of the audit for: Materials Testing Laboratories

Certificate Number: 5257186896 Expiration Date: 31 July 2021 Michael J. Hayward Accreditation Length: 24 Months Vice President and Chief Operating Officer Merit Performance Review Institute (PRI) | 161 Thorn Hill Road | Warrendale, PA 15086-7527 Merit *** RESTRICTED / HIZMETE ÖZEL

20 TEITEI POSTPOST

HUMAN RESOURCES PROCESSES

INTERNATIONAL TALENT FOR BIZ EVENTS BY THE PRESIDENCY OF HUMAN RESOURCES OFFICE OF THE REPUBLIC OF TURKEY

TEI Human Resources team participated in 3 events organized internationally to bring the global Turkish companies with the talented and qualified young persons living abroad, and to increase the level of awareness through provision of information on the business, internship and career opportunities, as well as the advanced technology developments in Turkey. The events attracted intensive attention especially from the Turkish young persons living abroad.

Talent for Biz – Germany We participated in the event, organized in Cologne, Germany between April 5-6, 2019, where we opened a booth and delivered a presentation on our projects. Salim Atay, Ph.D., President of the Human Resources Office of the Republic of Turkey, and Baris Ceyhun Erciyes, Turkish Consul General in Cologne, participated in the event where a reception was held at the office of the Turkish Consul General in Cologne exclusively for the representatives of the participating companies in the last day of the event.

Talent for Biz – UK We opened a booth in the event organized in London, the capital of the UK, on April 27, 2019. We also delivered a promotional presentation on our company. Salim Atay, Ph.D., President of the Human Resources Office of the Republic of Turkey, and Umit Yalcin, Turkish Ambassador to the UK, and Cinar Ergin, Turkish Consul General in London, participated in the event.

21 ACTIVITIESXXXXXXXXX AND PROJECTS

Talent for Biz – Uzbekistan We opened a booth in the event organized in Tashkent, the capital of Uzbekistan, on May 4, 2019. Salim Atay, Ph.D., President of the Human Resources Office of the Republic of Turkey, and his accompanying delegation participated in the event.

DOMESTIC CAREER FAIRS BY THE PRESIDENCY OF HUMAN RESOURCES OFFICE OF THE REPUBLIC OF TURKEY

TEI Career Development and Training Management participated in the Career Days organized under the auspices of the Presidency of Human Resources of the Republic of Turkey to reach the qualifies university students. Accordingly; TEI had participated in 8 fairs organized in different regions, came together with the respective students, promoted our company, answered their questions, and provided information on the job and internship opportunities.

March 5-6, 2019 | Eastern Mediterranean Career Fair-Mersin March 8-9, 2019 | Eastern Anatolia Career Fair-Erzurum

22 TEITEI POSTPOST

March 11-12, 2019 | Black Sea Career Fair-Trabzon March 14, 2019 | Aegean Region Career Fair-Izmir

March 19, 2019 | Southeastern Anatolia Region Career Fair-Diyarbakir March 21-22, 2019 | Southern Career Fair-Antalya

April 11-12, 2019 | Silk Road Career Fair-Gaziantep April 25-26, 2019 | Central Anatolia Career Fair-Konya

23 ACTIVITIES AND PROJECTS

TEI INTERNSHIP PROGRAM

TEI Summer Internship Program, developed by TEI for university students, was completed in the summer season of 2019. Applied by more than 8,000 students, the internship program gave nearly 300 university students the opportunity to serve their summer internships at TEI. During the program, the university students were provided with the opportunity to put the theoretical information, they received in the university, into practice in the business world. It is aimed to make the program more effective through such activities as interview management and simulation, case analysis, etc. organized for the interns, in addition to the business world experiences based on real cases.

2424 TEITEI POSTPOST

DEVELOPMENT CENTER PROJECT

“Development Center Program” was held to develop the competencies of the current leaders, and to raise the candidate leaders as part of the training activities for 2019. Communicating more effectively with team members, determination of internal cooperation, goals and priorities, motivating and managing people with different profiles and increasing the level of emotional and social awareness were addressed as part of the training program. As part of this program, the personality and leadership style inventories are also created, and the current statuses and progresses of all employees are tracked.

LONG-TERM (CO-OP) INTERNSHIP PROGRAM

We executed a new Co-Op protocol with Sabanci University in 2019, reinforcing our university-industry cooperative initiatives. During the summer season, students from the Middle East Technical University, TOBB ETU, Eskisehir Osmangazi University and Sabanci University find the opportunity to experience the business life by assuming roles actively in different projects.

25 ACTIVITIES AND PROJECTS

DINNER ORGANIZATIONS UNDER MY NATIONAL AVIATION ENGINE PROJECT

As part of the activities held with “My National Aviation Engine Project” motto; Prof. Mahmut F. Aksit, Chairman & CEO, TEI met accomplished students.

Organization Held in Istanbul Under My National Aviation Engine Project

A dinner organization was held on February 28, 2019 with the students with the highest ranks among the final-grade undergraduate, post-graduate and doctoral students studying at the departments, falling under the targetted departments of TEI, at Bogazici University, Istanbul Technical University, Sabanci University, Gebze Technical University, Sakarya University, Marmara University, Ozyegin University, Koc University and Yildiz Technical University. Interview processes were initiated with many of the students who were a potential source of labor force.

Organization Held in Ankara Under My National Aviation Engine Project

A dinner organization was held on March 07, 2019 with the students with the highest ranks among the final-grade undergraduate, post-graduate and doctoral students studying at the departments, falling under the targetted departments of TEI, at Middle East Technical University, Gazi University, TOBB ETU, Bilkent University and Hacettepe University. Interview processes were initiated with many of the students who were a potential source of labor force.

26 TEI POST

Organization Held in Eskisehir Under My National Aviation Engine Project

A dinner organization was held on April 08, 2019 with the students with the highest ranks among the final-grade undergraduate, post-graduate and doctoral students studying at the departments, falling under the targetted departments of TEI, at Eskisehir Osmangazi University and Eskisehir Technical University. Interview processes were initiated with many of the students who were a potential source of labor force.

27 ACTIVITIES AND PROJECTS

CAREER FAIRS

TEI participated in the career fairs, organized by Istanbul Technical University and answered the questions of students.

• February 19-21, 2019 | Istanbul Technical University IKZ EVENT

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• February 25-27, 2019 • February 28 - March 1, 2019 Istanbul Technical University Middle East Technical University 14th Makinistanbul Career Summit Career Fair

• March 7, 2019 • March 13-14, 2019 Bilkent University Career Fair TOBB ETU Career Fair

• March 19-20, 2019 • March 26-28, 2019 Istanbul Technical University Yildiz Technical University Career Fair Defence Technologies Fair

ISKUR (TURKISH EMPLOYMENT AGENCY) MEGIP (COOPERATION PROTOCOL ON VOCATIONAL TRAINING AND SKILLS DEVELOPMENT) PROGRAMS

We make use of the Turkish Employment Agency (ISKUR) Program incentives to employ qualified blue-collar personnel. 209 trainees participated in the Turkish Employment Agency (ISKUR) MEGIP (Cooperation Protocol on Vocational Training and Skills Development) Program, a new incentive developed for 2019.

29 NEWS ABOUT TEI

PROCUREMENT AND COOPERATION AGREEMENT FOR ADDITIVE MANUFACTURING MACHINES EXECUTED

A procurement and cooperation cooperation with GE, have become “In these days when the aerospace agreement for additive much more comprehensive companies are turning a milestone manufacturing machines was upon addition of the machine in industrialization, our M LINE executed between TEI and GE portfolio of GE Additive. We keep system equipped with a modular Additive in the first day of Paris developing our capabilities in line machine architecture, as well as Air Show organized between June with the needs of our customers an outstanding automation and 17-23. as part of our indigenous engine reliability, is an ideal projects through the investments to support the economic and Scope of this agreement; two M in the additive manufacturing and sustainable mass production across Line systems and two M2 machines other advanced manufacturing the industry.” will be procured. This investment technologies.” in the additive manufacturing technology by TEI has reinforced Sharing his opinions on the leading position of Turkey in this the matter, Jason Oliver, field. The new GE Additive M Line CEO of GE Additive, and M2 systems will be installed at uttered: “M2 is a system the head office of TEI in Eskisehir, which is preferred by our and supplement its currently customers, operating available fleet including bed powder in the field of aviation, metal powder melting machines. based on reasonable grounds. This is not Delivering a speech during the based, only, on the good signing ceremony, Prof. Mahmut F. performance delivery Aksit, Chairman & CEO, TEI, said: by our systems. Our “We have made an investment in machine portfolio is the additive manufacturing field, capable of meeting which means that we have also the special needs and invested in the future of TEI and demands of our industry the manufacturing technology. which is subject to highly Our partnership and long standing top-level requirements.

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TEI VISITED BY HULUSI AKAR,MINISTER OF NATIONAL DEFENCE OF THE REPUBLIC OF TURKEY

Hulusi Akar, Minister of National Defence of the Republic of Turkey, and General Yasar Guler, Chief of General Staff, and General Hasan Kucukakyuz, Commander of Combatant Air Force, and Muhsin Dere, Deputy Minister of National Defence of the Republic of Turkey, and their accompanying delegation visited the premises of TEI in Eskisehir on January 28. The briefing meeting under the leadership of Prof. Mahmut F. Aksit, Chairman & CEO, TEI, was followed by the facility tour. First of all, the delegation watched the tests of TEI-PD170 Turbodiesel Aviation Engine, powering ANKA, as well as TEI-PD222 engine, its upper version. Then, Mr. Akar conducted the tests of TEI-TS1400 turboshaft engine, to power the Gokbey platform, and thanked all employees.

A GIANT SUPPORT TO VOCATIONAL TECHNICAL TRAINING BY ESKISEHIR AVIATION CLUSTER

A cooperation protocol for the “Project for Ozdemir Cakacak, Governor of Eskisehir, on April Discovery of Qualified Labor Force and Increasing 25, 2019 at the Office of the Governor of Eskisehir. Employment” was executed by and between Eskisehir Aviation Cluster (ESAC), the Provincial As a result of this protocol executed to introduce Directorate of National Education in Eskisehir qualified labor force into the industry by the and Provincial Directorate of Turkish Employment Vocational High Schools; a consensus was reached Agency (ISKUR) in Eskisehir upon attendance of on the below-listed activities:

31 NEWS ABOUT TEI

• To encourage the final grade students, studying at the secondary schools and getting ready to make a high school selection within the provincial borders, and their parents to select the Vocational and Technical Anatolian High Schools, and holding organizations to share the advantages of graduating from a vocational high school; • Preparing a special education brochure for vocational high school students with respect to the fields of business and workshops, and submission of a proposal to ensure that this brochure is used as a reference during the education terms at the vocational high schools by ESAC; • Designation of “Coordinators” among the employees of ESAC companies, having a vast amount of experience on the workshops, and sharing the experiences, gained in the previous workshops, with the vocational high schools; • Delivery of Train the Trainer program for the Vocational High School Teachers within the organization of ESAC; • Delivery of MEGIP (Cooperation Protocol on Vocational Training and Skills Development) On-the-Job Training Program jointly with ISKUR (Turkish Employment Agency) and ESAC member companies, and employment of all trainees who become successful and pass all evaluation processes accomplishedly following the program; • Organization of career days, aiming to reach the Vocational High School students, by ESAC; • Ensuring that the students can gain experience and put all theoretical information, they receive during the lessons, into practice at the Practical Center of Turgut Reis Vocational and Technical Anatolian High School; • Grant of any surplus machines and equipment, owned by the ESAC companies, to the needy schools to be determined by the Provincial Directorate of National Education.

In the first phase of the program; Prof. Mahmut F. Aksit, Chairman of ESAC, and Chairman & CEO of TEI, came together with the final-grade students, studying at the secondary schools and getting ready to make a high school selection, and their parents on April 25, 2019 at Ataturk Culture, Arts and Congress Center of the Metropolitan Municipality of Eskisehir to encourage them to select the Vocational and Technical Anatolian High Schools, and to share the advantages of graduating from a vocational high school.

Then, as part of the article under the protocol addressing grant of any surplus machines and equipment, owned by the ESAC companies, to the needy schools to be determined by the Provincial Directorate of National Education; a protocol was executed for TEI, an ESAC member company, to grant 15 notebooks to the Provincial Directorate of National Education. The event ended upon a collective photo shoot in the memory of this special day.

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EXECUTIVE OUTSTANDING ACHIEVEMENT AWARD AND EXECUTIVE PROJECT OUTSTANDING ACHIEVEMENT AWARDS

Executive Outstanding Achievement Award and Executive Project Outstanding Achievement Awards refer to the awards granted to the projects which provide a substantial contribution directly to the vision and strategic objectives of the company every year.

The awards for 2018 were presented to the employees during an award ceremony held on February 4 upon attendance of Prof. Mahmut Faruk Aksit, Chairman & CEO, TEI.

Plaques were presented to a representative from each directorate for and on behalf of all employees providing a contribution to the indigenous engine development projects at TEI.

Employees Entitled to Receive the • Damla Algan • Recep Koca Executive Outstanding Achievement • Ece Canan Karabastik • Rifat Yilmaz Award and the Executive Project • Erdem Ozdil • Seda Topuz Outstanding Achievement Award • Gokcen Tuzturk Yilmaz • Serkan Pala • Ahmet Ozsahin • Gokhan Dogray • Suleyman Tasci • Bahri Tansel Nalbat • Kadir Can Saka • Sumeyra Nihal Akdogan • Mehmet Zahid Yuzuguldu • Kadir Tufekci • Sevket Ertekin • Necati Emir • Lina Abbas Songuler • Tolga Ozgonul • Suleyman Caner Songuler • Nur Dilara Kilic • Ugur Akdogan • Zeynep Keceli Yasar • Okan Gunay • Yetkin Kocak • Bertu Birkan Gul • Omer Ecevitoglu • Zihni Alper Unsan • Buket Taspinar

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LEAN MANUFACTURING ACTIVITIES

LEAP FOS CELLULAR PRODUCTION LINE In consequence of the analyses carried out to increase the efficiency of the Forward Outer Seal (LEAP FOS) parts, Under the scope of continuous flow, one of the belonging to the LEAP 1A/C and 1B engines produced at fundamental elements of the lean thinking system, it TEI, and the production quality, and to arrange the work is aimed to eliminate all wastes in the value flow, and flows, and to minimize any losses, and to shorten the total to complete the manufacturing process with minimum production period, and also to improve the workshop stock. Cellular production is one of the methods which usage areas, it was decided to consider the cellular allow for one-piece flow that is one of the ways of production system appropriate for production of the LEAP working with minimum stock. FOS parts, and the “LEAP FOS Cell” was installed in 2019.

Any and all products, produced through common As part of the cell design activities; an investment was processes in cellular production, are grouped and made to procure 2 milling machines, 2 vertical turning proceed in the manner of one-piece flow. The number machines, and 1 deburring cabin, and 5 machines were of operational machines and operator(s) inside the cell is relocated in the workshop, and also a quality control determined in line with the production pace (takt time). area was established. Following this arrangement, the total distance covered by each part inside the workshop When a part is started to be processes on a machine and was reduced by approx. 3,500 m, shortening the total the process is completed, intermediate stock is produced production period by 20%. The total loss was reduced for the machine to start the next operation. This is how by 13% thanks to the advantages of ensuring that the the processes work in all stations inside the cell. production and quality control processes are inside the same cell.

PCC (Plant Control Center) and CCC (Cell Control PCC meetings refer to the weekly meetings held upon Center) meetings are held as part of the continuous attendance of the concerned engineers and executives improvement activities on the LEAP FOS cellular (shop supervisor, leader, manager). production line. • Target indicators (sales, loss, etc.) CCC meetings refer to the daily meetings held upon • WIP status attendance of the concerned operator(s) / inspector(s) • Priority table for sales and engineers. • Issues disrupting production • Target indicators (sales, loss, etc.) • Occupational Health and Safety (Safety Tracker • Priority table Cross), Quality (Quality Tracker Q), Sales (Delivery • Issues disrupting production Tracker Truck) Tracking Forms • Outstanding corrective actions • Outstanding corrective actions escalated to PCC The above-listed matters are discussed, and the (Issue Tracker) Occupational Health and Safety, Quality, Delivery and The above-listed matters are discussed, and the tracking Corrective Actions Tracking Forms are filled in for the forms are revised if and when so necessary. respective day.

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5S AT TEI

5S principles are employed at TEI to ensure that the working environment are kept clean, orderly, safe and secure to enhance productivity, and to maintain these conditions.

The concept of 5S was originated in the 1950s in Japan. It consists of 5 stages expressed with 5 different terms in Japanese language. • Sort (Seiri) • Set (in order) (Seiton) • Shine (Seiso) • Standardize (Seiketsu) • Sustain (Shitsuke)

Application Examples for 5S Arrangements in 2019 B200 Workshop Shotpeen Area

BEFORE BEFORE BEFORE

AFTER AFTER AFTER

BEFORE AFTER

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B200 Workshop Balance Area B200 Workshop Automatic Edge Breaking Machine Leveling Area BEFORE BEFORE BEFORE

AFTER AFTER AFTER

5S CHAMPIONS

In consequence of the 1st 5S inspection for 2019, the champions of 5S received their 3-star, 2-star and 1-star 5S flags.

In consequence of the inspection; • B1000 Shotpeen area received the highest score and became entitled to receive the 3-star 5S flag (the champion of 5S). • B300 Central Inspection area was entitled to receive the 2-star 5S flag. • B1000 LEAP Blisk Liechti area was entitled to receive the 1-star 5S flag.

36 TEI POST

PREDICTIVE QUALITY ASSESSMENT

As part of the continuous improvement approach; GE Aviation (GEA) initiated the Predictive Quality Assessment (PQA) process intended to be implemented in the entire supply chain during the third quarter of 2018. PQA refers to a which determines the risk areas for which process improvements are required or a better discipline is needed for the existing processes is to determine and handle the 25-29, 2019. In consequence of the and procedures. It consists risk proactively to prevent any assessments; 3 risky areas were found of a detailed control program deterioration caused by quality out, and 13 practices were reported which assessed the four focal issues rather than identification and to have been considered as the best areas namely Production and resolution of issues reactively. practice. Getting 90 out of 100 points, Production Processes, Supplier TEI was considered successful. and Substrate Management, A team of 7 persons from GEA visited Preventive and corrective actions Corporate Culture and Change and performed assessments at TEI were initiated with respect to the areas Management. The purpose for this purpose between March determined to be of risky nature.

ULTRASONIC CALIBRATION BLOCK PRODUCTION AND CERTIFICATION

Ultrasonic Testing Method is a 'Non-Destructive Test' method that is based on the principle of redetection and interpretation of sound waves sent to interior sections of materials using ultrasonic waves between 0.2-25 MHz and back reflected from intermediate surfaces created by discontinuity inside materials. Ultrasonic Testing method enables to detect any discontinuity and volumetric errors caused by the primary production processes such as forging and casting, as well as the secondary production methods such as welding and braze.

Ultrasonic testing, employed in the production sector across the aviation industry, is generally performed using the immersion technique, and it is highly preferred to detect any and all errors arising in the primary production processes of pre-production forged parts, as well as to detect appropriateness of parts following welding and braze processes during production.

Calibration is one of the main stages of ultrasonic tests. Pre-testing calibration stage allows to verify that the system operates in a manner to satisfy the process requirements, and to determine the test earning value as necessary for the desired testing sensitivity. Therefore; calibration stage is considered as the important and one of the essential stages of ultrasonic tests.

37 NEWS ABOUT TEI

The ultrasonic testing created at the desired activities at TEI are carried sensitivity level using out to determine any TEI EDM capabilities. potential discontinuity of Appropriateness and forging parts, and to detect verification of the any and all errors which dimensions and locations might be caused from of the artificial errors processes in inertia weld created were ensured and braze joints. During through ultrasonic testing, the calibration stage of radiographic (X-ray) forging parts before the examination, dimensional ultrasonic testing process, measurements and FBH (Flat-Bottomed Hole) replication methods. and SDH (Side-Drilled Hole) The certification file calibration blocks which was prepared with the have artificial holes with the dimensional measures results obtained from the verification activities, and and locations known thereon are used. Production the documents created during production of the and certification of these calibration blocks are blocks. All certification documents were sent to GE performed by the international companies approved Aviation for approval. Following the assessments by customers, and procured by the companies and examinations by the experts at GE Aviation, the engaging in ultrasonic testing processes. The certification process of the ultrasonic block, which calibration blocks used in the ultrasonic operations was produced using TEI's own human resources, of inertia weld and braze joints are produced more know-how, machines, equipment and capabilities, specifically in line with the special part geometry, and was completed successfully. The calibration block, they are certificated thereafter upon being approved produced upon the certification process, was started by customers. to be used in the ultrasonic testing operation carried out for control of the braze joint of the T700 outer We requested the calibration block from GE Aviation case part. upon arising of the need for the ultrasonic testing of braze areas of the outer case part, produced as It is of high importance as it is the first ultrasonic part of Turkish Utility Helicopter Project. However calibration block produced using TEI's own GE Aviation informed us that they didn't have capabilities. It was presented at the Program Review an available back-up calibration block designed Meeting held with the Presidency of Defence exclusively for this part. Industries (SSB) and Turkish Aerospace Industries, Inc., and it was appreciated by the SSB. Then, it was decided to make use of TEI's own resources with respect to the production and certification processes of the calibration block needed to maintain the production processes of the part and to perform its ultrasonic testing. One piece of forging part was brazed at TEI in order to be used as the calibration block, and the braze process was determined appropriate by means of the ultrasonic testing method. End then, artificial errors (holes) were

The ultrasonic testing activities at TEI are carried out to determine any potential discontinuity of forging parts, and to detect any and all errors which might be caused from processes in inertia resources and braze joints.

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TEI ATTENDS “SUPER ALLOYS AND COATINGS” TRAINING 2019

Ece Canan Karabastik, serving at the Material and Process Development Management, participated in the Super Alloy and Coating Materials for Gas Turbines Trainingheld in the United States of America between May 7-10, 2019.

ATOS SCANBOX TRAINING

Canset Mercan, Design Projects Engineer, Okan Berk Tuncel, Quality Engineer, Emre Karaduman, Senior Quality Technician, and Ozgur Servi, Assistant Quality Technician, participated in the ATOS Scanbox Training for users held at Cadem in Bursa between May 13-17, 2019.

ERGONOMICS TRAININGS HELD

Ilgin Acar, Ph.D., a Faculty Member at Eskisehir Technical University, delivered an ergonomics training of 20 sessions for TEI employees in February, April and May. Approximately 1,400 employees were attended the trainings. They were focused on to protect especially the musculuskeletal system.

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RANKING OF TOP 1000 RANKING OF TURKEY'S LARGESTS EXPORTERS OF TURKEY 500 INDUSTRIAL ENTERPRISES BY ISO

According to the results of “Top 1000 Exporters of Turkey", TEI climbed 14 ranks up to the 115th place in the ranking published by Turkish Exporters Assembly that was announced for Turkey's Top 500 Industrial Enterprises, which was for the 17th time, TEI has increased the exportation by 15%, announced by Istanbul Chamber of Commerce (ICC). and ranked the 43th in Top 1000 Exporters.

TEI HAS BEEN GRANTED WITH “RESPECT FOR THE HUMAN THE BEST EMPLOYER AWARD BEING” AWARD FROM FOR 2 SUCCESSIVE YEARS KARIYER.NET

According to the results of the “Employee Engagement Survey", performed by AON Hewitt Responding to 181,500 job applications filed on with the participation of leading Turkish companies, Kariyer.net within an average period of 2 days in 2018, TEI was granted with the award of "Employee TEI was granted with the “Respect for the Human Engagement” for 2018 just as in the previous year, as Being Award” by Kariyer.net. a result of the successful works conducted in Human Resources. Within the scope of the award ceremony 2018, TEI was the only company awarded among the companies in aviation and defence industry.

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TEI GRANTED WITH THE TWO AWARDS TO TEI MOST FEMALE FRIENDLY COOPERATION AWARD

Organizing various events since 2016 as part of the Women of Aviation Worldwide Week in order to introduce the aviation industry to female students and promote them to work in aviation industry, TEI was selected as “The Most Female Friendly Cooperation” by Institute for Women of Aviation Worldwide, among the companies from 39 countries participating as part of Women of Aviation Worldwide Week.

RUNNER-UP PRIZE BY DEFENCE AND AEROSPACE INDUSTRY EXPORTERS' ASSOCIATION The companies with the highest export volume were awarded in the Successful Exporters Award Ceremony 2018 for Defence and Aviation Industry, which was organized by Defence and Aerospace Industry Exporters' Association (SSI) on April 5. Increasing its success in exportation and becoming a global aviation engine brand, TEI ranked second in the most exporting firms in defence and aviation industry and granted with the runner-up prize with an export volume of 229 million dollars in 2018. The award ceremony, which was organized by Defence and Aerospace Industry Manufacturers Association (SaSaD) on April 19, 2019 at the 30th Ordinary General Assembly Meeting, the companies operating in defence and aviation industry were granted awards. TEI ranked second and granted with the runner-up prize in “Highest Overseas Sales Revenues”. In addition, it was granted with the award of "Company Producing Successful R&D Outputs", thanks to the project of Development of Titanium Casting Process in Aviation (INCI), which is being carried out in cooperation with its subsidiary Gur Metal under the support of Presidency of Defence Industries (SSB). Prof Mahmut F. Aksit, Chairman & CEO, TEI, received both of the awards from Mustafa Murat Seker, the Vice President of Defence Industries.

41 TECHNICAL ARTICLES XXXXXXXXX

SECONDARY AIR SYSTEMS IN GAS TURBINE ENGINES

In gas turbine engines, to increase cycle efficiency it is of paramount importance to increase compressor ratio and turbine inlet temperature. Higher increase pressure ratios require efficient compression technologies whereas higher turbine inlet demand better cooling ERINC ERDEM, PH.D. technologies coupled with advanced materials. Modern gas turbine engines Senior Engineer work at elevated temperatures that are above the material limits; hence, the Chief Engineering Office cooling of turbine components is vital.

Another pertinent aspect is the to reduction in service life. Therefore, leakage of main flow path gases control and the management of axial into the cavities formed by static loads is crucial for reliable operation. Modern gas turbine and rotating components, which engines work at consequently reduced module In essence, the functions of Secondary elevated temperatures efficiencies leading to diminished Air Systems (SAS) can be summarised that are above the cycle efficiencies. To provide below: material limits; hence, necessary sealing to various engine • Cooling of turbine components the cooling of turbine components sealing airflow is metered • Sealing of cavities and bearing via dynamic sealing elements and chambers components is vital. routed to those cavities. In addition • Management of axial loads cooling of bearings and the chambers around them is accomplished with In order to accomplish these functions, spraying/feeding oil onto relevant SAS flows are taken out from fixing the aerodynamic components. surfaces. Pressurisation air is compressor offtakes and routed to Thus, SAS designers work closely utilised to seal the bearing chambers respective components via restrictive with mechanical and thermal preventing oil leakage that might lead elements. These airflows essentially designers. Throughout the design to oil fire. bypass the combustion chamber and process boundary conditions taken consequently partially contribute to the The axial load of a gas turbine engine power/thrust generation detrimental is the resultant of the aerodynamics to engine performance. loads coupled with pressure loads Therefore, minimisation occurring rotor-stator and rotor-rotor of SAS flows is key. cavities, exerted on rotating surfaces. Ball bearings situated inside bearing SAS is responsible chambers carry axial load, and the for all the flows resultant load naturally needs to lie outside the main below the capacity of the bearings. gas path and inherently Excessive loading of ball bearings interacting significantly would result in overheating leading with the parts that are securing and

42 TEI POST

from aerodynamic designers and then the flows are calculated using regulative and restrictive elements such as holes, tubes, orifices, cavities (rotor-stator and/or rotor-rotor), etc. While routing the required airflows to relevant components, associated pressure drop and temperature rise owing to either heat transfer or wind age heating are taken into account. After the completion of functions, SAS flows are either injected back into main gas path or discharged overboard.

While carrying out its functions, SAS needs to incorporate robust design philosophy, which assures insensitivity of airflows to the changes happening throughout the operating envelope, leading to reliable operation. These changes imply the alterations in gaps and clearances between parts alter and variations of main gas path and temperatures. Moreover, manufacturing tolerances impose variations to the geometries of critical restrictive elements. Generally, these alterations results in changes to airflow rates proportional to engine air flow rate. Another important aspect is the capability of SAS to respond to increase thrust/power levels, as known as growth potential. To achieve this potential overdesigning of restrictive elements and/or having the ability to apply small modifications to critical components with ease are required.

Robust design philosophy assures insensitivity of airflows to the changes happening throughout the operating envelope, leading to reliable operation.

43 TECHNICAL ARTICLES

Figure 1. Generic Turbine SAS Network, Ref.1

SAS network from a generic turbine For the cooling of turbine cases and relatively smaller windage temperature module is shown in Figure 1. In a shrouds either compressor discharge rise. Whereas undercooling causes gas generator turbine, first stage air or mid compressor air are utilised lower temperature gradients and less nozzle guide vanes are cooled by depending on supply pressures and air use with relatively higher windage compressor discharge air, routed temperatures. temperature rise; therefore the inside the vanes from below and optimisation of sealing airflows plays a above. For the first stage rotor blades, On the other hand, as disks are significant role is SAS design. again, compressor discharge air is bulky metal parts supporting rotary passed through the inducers and structures and suffer from low To seal the bearing chambers, transferred into rotating structures temperature limits compared to pressurisation air taken from earlier before pumped into blade cooling vanes and blades; preventing hot stages usually, is routed via SAS slots. Inducers swirl the incoming flow gas ingestion into disk cavities by elements and transferred to chambers. in the direction of rotation causing a providing relatively colder sealing On the way to the chambers sealing reduction in relative total temperature airflows is vital. Sealing flows also air experiences pressure drop and that is essential in optimising SAS sweep over disk surfaces and cool heating owing to heat transfer from airflow use. Second stage nozzle them. While carrying out the functions surroundings and windage. Preferably, guide vanes and second stage rotor mentioned above, certain precautions the biggest pressure drop is observed blades are cooled by an earlier stage need to be taken to limit temperature on critical sealing elements (see Fig.2) compressor offtake air; provided that gradients through transient and metering is accomplished via the supply pressure is adequate. manoeuvres such as accelerations, these elements. To avert oil coking Obviously, the vanes are cooled from decelerations, etc. in order to meet inside the chambers, temperature above and the blades are cooled life requirements of disks. Overcooling rise of the pressurisation air needs to from below. Similar routing design is the disks results in higher temperature be controlled. To achieve this, clever employed for other turbine stages. gradients and excess air use with designs need to be incorporated to

44 TEITEI POSTPOST

reduce heat transfer and windage to the sealing air, which ensures safe and sound operation of bearings within temperature limits devoid of coking inside the oil system components.

Just as the external power of strong athletes depends on the health of their internal flows of blood, water, and air so is true for a gas turbine whose operational life depends heavily on the robust design of its internal cooling and sealing flows [Ref.1]. A gas turbine engine with dysfunctional SAS design is certainly an unreliable inefficient engine.

REFERENCES: 1. Gas Turbines: Internal Flow Systems Modeling, BIJAY K. SULTANIAN, Cambridge University Press, DOI: 10.1017/9781316755686, 2018 2. The Jet Engine, Rolls-Royce Plc., 2005

Figure 2. Dynamic Sealing Elements, Ref.2

45 NEWS FROM THE AVIATION INDUSTRY

ENGINED 3 HELICOPTERS BY EMIR IBRAHIM BILEN & OMER SIMSEK

HELICOPTER DESIGNS, ENGINE load carried. To give an example for 3-engine helicopters TECHNOLOGIES AND CONFIGURATIONS manufactured, Agusta Westland AW101, Avicopter AC313, SA 321 Super Frelon, Ch149 Cormorant, Lockheed Martin UFirst example of today's helicopter in terms of basic VH-71 Kestrel and Sikorsky CH-53E Super Stallion may be principles of flight, flight control and design was developed counted among them. by Igor Sikorsky, who was an American engineer of Russian origin. Sikorsky, who dreamt of making a useful and effective CONCEPT DESIGN STUDY helicopter, received the first outcome of his works lasting for years in the early 1940s. VS-300, flied with 90 HP The biggest factor for such projects to emergence is Franklin engine, was considered to be the beginning point of the situations that arise from needs. Considering such helicopters, and has become the milestone for the history of situations, it will be beneficial to assess how the design helicopters. process progresses. First, the customer turns the needed situation into choices by performing feasibility or concept Helicopter platform and engine technologies, which have works in line with its own requirements. Such works include developed until today, led to the production of different the investigation of different technology choices and the configurations. While the manufactured helicopters were performance of possible solution proposals in the optimum used for military and commercial purposes, power and period at an acceptable risk and cost. performance requirements were changing too. One of the major outcome of different power requirements was the Expectations and restrictions in the study of concept production of three-engine helicopter configuration. design are determined as targets. When the project grows to maturity, such expectations and restrictions turn into Addition of third engine to helicopter platforms enabled requirements (Requirements constitute a basis for those to users to increase MTOW (Maximum Take Off ) assume the project). and keep the flight distances at similar levels despite the

46 TEI POST

AgustaWestland Avicopter Aérospatiale AgustaWestland Lockheed Martin Sikorsky AW101 AC313 SA 321 Super Frelon CH149 Cormorat VH-71 Kestrel CH-53E Super Stallion

Platform Weight - Kg 8,600 10,500 6,750 6,860 10,500 10,500 15,071

Engine Weight - Kg 244 228 300 325 220 244 326

3x General 3x Rolls & Royce 3x Pratt&Whitney 3x 3X General Electric 3x General Electric Engine Manufacturer Electric Turbomeca Canada 3x General Electric CT7-6 IIIC7 CT-8E T64-GE-416/416A/419 CT7-8E RTM 322 PT68-67A

SHP 3x2634 = 7,902 3x2312 = 6936 3x1940 = 5,820 3x1610 = 4,830 3x2000 = 6,000 3x2634 = 7,902 3x4380 = 13,140

Maximum Take-Off 14,600 14,600 13,000 13,000 14,600 15,600 33,300 Weight (MTOW) - Kg

MTOW/SHP Kg/Shp 1,847 2,104 2,233 2,691 2,433 1,974 2,534

Origin Italy China France Italy USA USA

Figure-1. 3-Engine Helicopters

When the required solution is determined to perform the Any helicopter, which is in the early design stage is desired design, the project will be started by concluding binding to be able to delivered with civil certification at the same time contracts. as the proposed military utility and naval variants. To meet project timescales, it is required that the helicopter make Departments, which will serve for the project started, use of an existing engine that was either already certified or perform a detailed study in themselves and have a roadmap on track to so being. (This is because the development and about how the operation will be continued. In this process it certification of a new engine in parallel to a new airframe is the responsibility of the project manager or configuration would result in unacceptable programme timescale, team to create a system, which may be acceptable by performance and cost risks). everyone.

IS THE USE OF THREE-ENGINES OPTIMUM SOLUTION? FACTORS AFFECTING THE DESIGN Increase the number of engines in helicopters has arisen The basic requirements and factors have great impact on from the need of high horse power. Multiple engine the design and manufacturing of the planned helicopter. configurations allow for OEI (One Engine Inoperative) Performance, speed, useful load, resistance, manoeuvrability operations in such helicopters . Besides using one engine are among such requirements. In addition, there are also inoperative, multiengine helicopters are designed and used common qualification requirements. Certification procedures to provide more lifting power. By adding the third engine such as EASA, FAA, TCCA, etc. may be counted among total power increases by 50% and the ascending force is them. doubled in average. Sikorsky CH-53E Super Stallion is the largest and the most capable multiengine helicopter of the world after Mil Mi-26. Useful payload has increased from 8 Expectations and tons to 16 tons with the addition of third engine in CH-53E restrictions in the platform and the rate of climb has increased to the level of preparation of the concept 6,000 feet/minute. CH-53E, which has three General Electric design are determined T64-GE-419 engine, may perform hovering with the weight as targets. When the of 32 tons without needing the third engine. In addition to project grows to maturity, that general dimension of the helicopter has increased by such expectations and 10% with the integration of the third engine to the platform. restrictions turn into In AW101 helicopter, 5-hour flight duration with crew requirements. in certain number, search radar, sensors, means of communication, carriage of various useful loads are among requirements. Take off load has been specified to be 13 tons

47 NEWS FROM THE AVIATION INDUSTRY

as a result of the feasibility study conducted. The helicopter engines can provide the required power and the engine has been estimated to need 54% more power to take off integration to AW101 helicopter has been performed. In with such weight; considering CT7 engine, which has the addition, AgustaWestland AW101 may perform their SAR required flight certificates, it has been determined that 3 () tasks by using only two engines.

Air Inlet

Engine

Power(Hp)

Engines

Exhaust

Figure 2. Sikorsky CH-53E Super Stallion

Air Inlet

Engine Power(Hp)

Engines

Exhaust

Figure 3. Aérospatiale SA 321 Super Frelon

Mainly, use of three engines in platforms is for extra requirements. The third engine is deactivated , when it is not required and parameters such as fuel consumption, flight safety, bearing capacity, etc. can be optimized by using three engines with low horse power instead of two engines with high horse power. Otherwise, two engines with high horse power will be active continuously within the take-off, flight and landing processes and any improvement will not be conducted in the mentioned parameters.

WHY PREFER 3-ENGINED HELICOPTERS? • In tasks performed with few personnel (4 at maximum) under hot weather conditions, efficiency of power use Figure 4. Sikorsky CH-53E Super Stallion increases at a low altitude, while it decreases at a high

48 TEI POST

Figure 5. Sikorsky CH-53E Super Stallion

altitude (EH101=AW101). Even though three-engine helicopters may not be used efficiently in fast transition and attack operations, they give positive results in the carriage of multiple personnel, ammunition and other equipment thanks to their MTOW capacities. • Three-engined helicopters are safer than two-engine helicopters. The flight may be performed safely in case of engine failures. • Due to the increase in the capacity of carrying greater load, Military and civilian helicopters are able to have more of the useful loads on board. • Such systems, which give choices to deactivate or to activate the third engine, allow to perform tasks more comfortably under excessive weather conditions, which differ excessively. WHO IS EMIR WHO IS OMER REFERENCES IBRAHIM BILEN? SIMSEK? https://www.sikorskyarchives.com/S-65H-53D%20SEA%20 He was born in Bursa on 1984. He was born in Konya on 1982. STALLION.php He graduated from The State He graduated from Mechanical https://www.gao.gov/assets/80/78727.pdf University of New Mathematics Engineering Department of Gazi Christopher A. Mouton, David T. Orletsky, Michael Kennedy, Fred at Albany at York in 2007 and University and simultaneously Timson, Adam Grissom ve Akilah Wallace. Cost-Effective Helicopter he completed masters degree from Department of Business Options for Partner Nations. California: RAND Corporation, 2015. from Southern New Hampshire Administration of Anadolu Tom Wood. One Engine Inoperative (OEI) and Autorotation for Heavy University High in Business University in 2010. He completed Administration in 2011. He masters degree from Mechanical Lift Rotorcraft System. Texas: NASA, 2012 is continuing working as an Engineering Department of ABBREVIATIONS Advanced Lead Specialist Gazi University in 2013. He also MTOW Maximum Take Off Weight at Bussiness Development graduated from Department of EASA European Union Aviation Safety Agency Management since 2018. Sociology of Anadolu University FAA Federal Aviation Administration in 2015. He is continuing working as an Engineer at Bussiness TCCA Transport Canada Civil Aviation Development Management since OEI One Engine Inoperative 2019. SAR Search And Rescue

49 NEWS FROM THE AVIATION INDUSTRY

ENGINE CRITICAL PARTS

BY IBRAHIM ATACAN KILIC

50 TEI POST

Engine Mounts

Shafts

Disks Engine Casings

SIOUX ACCIDENT

A big boom was heard 1 hour after the take-off from the of Low-Cycle Fatigue (LCF), regulation focuses, it was United Airlines McDonnell Douglas DC-10, registration revealed with the Sioux accident occurring in 1989 that life number N1819U. A failure signal was received from CF-6 management method was not sufficient. In the regulation, engine in vertical stabilizer of the aircraft. While flight team which was drawn up with a deterministic approach, it was performing their controls, realized that hydraulic systems was not possible to calculate the random effects such as of the tail of the aircraft was not working. Rotating parts loading cases, environmental impacts, manufacturing and with high energy, came from the engine gave damage to the working conditions of the materials on the parts. control surfaces thus hydraulic systems loss of control. Flight crew was able to land DC-10 aircraft to Sioux Airport in a After the accident, FAA started a new study in the bad manner, despite the fact that there was a loss of control, Southwest Research Institute with the participation of 4 engine induced failure, resulted in 111 people death, 47 leading engine manufacturers, to overcome problems in people heavily and 125 people slightly injured. life-limited parts, which arises from conventional safety management methods. A new safety approach was Reason of the accident developed to conduct the life calculation of parts with was the microscopic possibility based failure risk analysis. According to this, cracks, which arose engine manufacturers aimed to control all attributes in in 1st level fan disc the part lifecycle by preparing Design, Manufacturing of the aircraft due to and Service Plans for Life-Limited Parts. The concept the nonconformities of Damage Tolerance Assessment also entered into the occurring during the aviation industry with this regulation. Therefore, factors manufacturing. Cracks such as characteristics of the material used in the part, grew in time during part tolerances, manufacturing and operating conditions, the engine operations loading case, practices performed during the maintenance, and structural defects etc. were ensured to be kept under control within the occurred on the disc. defined tolerances. Engine parts with high energy, which came away from the casing, led to various structural damages to the airframe and FAA added the studies performed as Engine Life-Limited horizontal tail and thus caused to the accident. Parts numbered 33.70 to Part-33 in 2007 and revised the whole Part-33 under the scope of Life-Limited Parts. After REGULATIONS ON CRITICAL PARTS FAA Part-33 updates, European Aviation Safety Agency (EASA) updated the whole CS-E by adding CS-E 515 In 1974, Federal Aviation Administration (FAA) released Critical Parts requirements to the regulation. No:14 Start-Stop Cyclic Stress requirement with a “Control of Life-Limited Parts” section under engine airworthiness Part 33. However, the approach related with the problem

51 NEWS FROM THE AVIATION INDUSTRY

STUDIES PERFORMED UNDER THE SCOPE OF LESSONS FROM SIOUX ACCIDENT CS-E 515 ENGINE CRITICAL PARTS

Following studies are obliged to be performed to ensure the integrity of parts, which have been determined as engine critical parts as a result of CS-E 510 Safety Analyses;

Engineering Plan An Engineering Plan, the execution of which establishes and maintains that the combinations of loads, material properties, environmental influences and operating conditions, including the effects of parts influencing these parameters, are sufficiently well known or predictable, by validated analysis, test or service Technological improvements cause to go experience, to allow 1. over safety limits under the scope of previous each Engine Critical regulations. Aviation regulations, which are being Part to be withdrawn used, do not guarantee airworthiness. Risk is always from service at available. an Approved Life Aviation regulations (for engines: EASA CS-E or before Hazardous 2. FAA Part-33) aims to ensure minimum (acceptable) Engine Effects can safety level and manufacturing companies declare occur. Appropriate that known or unknown risks are at acceptable Damage Tolerance levels. Regulations offer a certain level of safety with assessments must limited comprehensiveness. be performed Problems, mistakes or error cases, which are not to address the potential for Failure from material, 3. considered, in existing aviation regulation are manufacturing and service-induced anomalies within the revealed incidents/accidents occurred. Scope Approved Life of the part. of design works should not be limited with the requirements such as FAA Part-33 or EASA CS-E. Manufacturing Plan Certain unclear definitions or explanations in A Manufacturing Plan 4. regulations are misunderstood or cause confusion which identifies the in manufacturing companies. A culture focused specific manufacturing to correctly understanding of the certification constraints necessary requirements should be constituted. to consistently produce Engine Critical Parts with the Attributes required by the Engineering Plan.

Service Management Plan A Service Management Plan which defines in-service processes for maintenance and repair of Engine Critical Parts which will maintain Attributes consistent with those required by the Engineering Plan. These processes must become part of the Instructions for Continued Airworthiness. (For details, see also: AMC E 515)LESSONS

WHO IS IBRAHIM ATACAN KILIC? He was born in Ankara on 1991. He graduated from the Department of Aerospace Engineering of Istanbul Technical University in 2016. He has been working as an Engineer at Design Integrity and Airworthiness Senior Team Leadership since 2018.

52 TEI POST

HYBRID THRUST SYSTEMS propulsion systems with high efficiency of the world works to develop hybrid (~70%) have been derived with the thrust systems in various topologies. BY ALI CANPOLAT development of electric engines Development of such systems requires and power electronic technologies. the association of different disciplines. However, electric propulsion systems Considering the studies conducted may not be preferred yet, because within this scope, it has been observed electric power storage technology that companies, which have specialties oday's researches show that (batteries) has failed to develop in different fields, generally gather and fossil reserves, which may be sufficiently. Main reason of this matter they have worked together by forming a Taccessed in the world, will not be is that while energy in project group. A sample of series hybrid able to provide the sufficient energy in fossil fuels is ~12 kWh/kg, such value propulsion system, on which HYPSTAIR the future. In addition, negative effects is still at the level of ~0.20 kWh/kg in project group is working, and flight of fossil fuels on the environment have batteries. Therefore, Hybrid propulsion mission profile have been given in the started to reach irreversible levels day Systems are developed by utilizing the figure 1. by day. Therefore, alternative propulsion power concentration of fossil fuels and systems for vehicles used in many the efficiency of electric thrust systems. Likewise, hybrid propulsion system fields have become a popular matter of of EFESTO group has been given in research in recent years. Considering Hybrid propulsion systems have the figure 2. In both examples, piston alternative propulsion systems, the started to be used in air vehicles, engine has been preferred as internal first thing coming to mind is electric even though it has been preferred for combustion engine. However, some propulsion systems. In studies, which land vehicles in the beginning. In this samples studies are available for other have been conducted so far, electric sense, the leading aviation companies engine types.

Figure-1

53 NEWS FROM THE AVIATION INDUSTRY

Recently, studies on hybrid propulsion systems have started to become popular for unmanned air Figure-2 vehicles as well as manned air vehicles. DA36 E-Star aircraft, whose images are given in the figure 3, and which have been Such practices, which developed together by Siemens, EADS and Diamond Aircraft, may be given as an aim to increase the example for hybrid propulsion system which has different engine type. Wankell flight duration (range engine has been used here as internal combustion engine. In the architecture extender) have mentioned, series hybrid topology has been used in terms of system architecture focused on studies and fuel consumption and emissions has been reduced by 25%. for series hybrid topologies on VTOL (Vertical Take-Off and Landing) UAV.

Figure-3

Even though piston engine and wankell engine have been used as internal combustion engine in many projects, Boeing company is conducting some studies on hybrid for gas turbine engines in the project developed for NASA.

Recently, studies on hybrid propulsion systems have started to become popular for unmanned air vehicles as well as manned air vehicles. Such practices, which aim to increase the flight duration as a range extender have focused on studies for series hybrid topologies on VTOL (Vertical Take-Off and Landing) UAVs. VTOL UAVs is turned into hybrid and they are ensured to increase the flight duration by using both advantages of fixed wing aircrafts and energy concentration of fossil fuel. Greased Lightning 10 vehicle of NASA and series hybrid generator set developed for such vehicle have been shown in figure 4.

54 TEI POST

Figure-4

Another field, in which hybrid propulsion systems have become common, is drones. In recent years, the biggest problem of such air vehicles, which are used in several fields both for military and civil purposes, is short endurance. Therefore, some companies have produced range extender solutions for drones by using series hybrid topology.

The fact that hybrid propulsion systems will be available for a long time in the roadmap of aviation thrust technologies is now taken for granted. Considering leading engine manufacturers in the world, most of them have formed consortium by coming together with companies in relevant sector. Their purpose is to ensure air vehicles in the future to fly with more efficient, eco-friendly and cost-effective thrust system solutions and to maintain their existence in the sector. Therefore, it is obliged to create similar areas of activity in our country and to develop such technologies. Considering main system components of hybrid thrust technologies, it may be listed as internal combustion engine, electric engine, battery or fuel cell as energy storage unit and finally power electronic units. All of such components are developed WHO IS ALI CANPOLAT? for different sectors and systems in He was born in Mardin on 1984. He our country. What we need is to gather graduated from Department of Aviation, such companies and to combine their Electricity and Electronics of Anadolu experience and, therefore, to develop University in 2009. In 2014, he graduated from Department of Electronics and thrust systems, which are among the Communication Engineering of Istanbul most critical systems of air vehicles, Technical University. In 2019, he got as hybrid. If we may succeed this, our masters degree on Electronics from Eskisehir Osmangazi University. He is country may prove its existence in this continuing working as Senior Engineer field around the world by having hybrid at Embedded Systems Subsection technology, which is owned by few Management. countries in the world.

55 NEWS ABOUT OUR EMPLOYEES

STATISTICS ON TEI'S EMPLOYEES In respect of our 2466 employees as of, June 30, 2019;

Breakdown of White-Collar and Blue-Collar Employees 44% White-Collar 56% Blue-Collar

By Title Groups By Educational Status 1% 1% 6% 7% 8% Executive Ph.D. 42% Engineer 26% Master's Degree 31% 56% Specialist Bachelor's Degree 17% Technician 5% Two-Year Degree Other Technical High School- High School Degree Elementary School Degree

9% By Age Group 16% By Gender 40% 15% 18-25 Female 91% 26-30 Male 29% 31-40 Over 41

56 TEI POST

NEW ASSIGNMENTS IN OUR COMPANY BETWEEN JANUARY 1, 2019 - JUNE 30, 2019

Kerem Gundogan Ahmet Akan Ozgur Unsar was assigned to serve as Design was assigned to serve as Sales was assigned to serve as Embedded Projects Engineering Manager at and Marketing Manager at Systems Subsection Manager at Quality & Manufacturing Engineering Programs Directorate on May 20, Design Engineering Directorate on May Directorate on April 10, 2019, 2019, 21, 2019,

Ozmen Emre Demirkol Ahmet Basdogan Cozef Akgul Mehmet Oguz Turgut was assigned to serve as was assigned to serve as was assigned to serve as was assigned to serve as Information Technologies Prototype Assembly and High Pressure Turbine Piston Engines Technical Senior Team Leader at Test Technical Leader at Technical Leader at Leader at Piston Engines Information Technologies Prototype, Assembly and High Pressure Turbine Subsection Management on Management on January 3, Test Subsection Management Subsection Management January 10, 2019, 2019, on January 8, 2019, on January 10, 2019,

Bahtiyar Taylan Aksongur Goker Akinci Mert Erk Halil Akkaya was assigned to serve as was assigned to serve as was assigned to serve was assigned to serve Turboshaft System Design & Turboshaft System Design & as Turboshaft System as Technology Programs Integration Senior Technical Integration Senior Technical Design & Integration Technical Leader at Leader at Turboshaft Leader at Turboshaft Technical Leader at Technology Programs System Design & Integration System Design & Integration Turboshaft System Design Subsection Management Management on January 18, Management on January 18, & Integration Management on April 9, 2019, 2019, 2019, on January 18, 2019,

Nazmiye Ozden Bilgic Sakir Karagoz Ibrahim Gucbilmez Tugper Ertugrul was assigned to serve as was assigned to serve as was assigned to serve was assigned to serve Combustion Senior Technical Turboshaft System Design & as Shop Supervisor as Domestic Business Leader at Combustion Integration Technical Leader at Manufacturing Development Technical Subsection Management on at Turboshaft System Design Management Tuning on Leader at Domestic Business April 11, 2019, & Integration Management on May 2, 2019, Development Department April 25, 2019, on May 31, 2019;

Nil Akcoray Ozkan Sibel Piskin was assigned to serve was assigned to serve as as Contracts Senior Career Development Training Administrative Leader at Senior Administrative Leader Contracts Management on at Career Development We Wish Success May 31, 2019, Training Management on May TO ALL IN THEIR NEW DUTIES 31, 2019.

DEPARTMENTS ESTABLISHED AT TEI BETWEEN JANUARY- JUNE 2019

Design Projects Engineering Management at Quality & Manufacturing Engineering Directorate

57 VISITORS

Visits to our company by various institutions and organizations continued at full steam in the first half of 2019. We hosted a great number of visitors between January - April 2019.

Visit by Murat Yetiskin, the Chairman of TUDEP (Association of Support January 23, 2019 of Technical Production and Exportation), and accompanying delegation

February 21, 2019 Visit by ASFAD

Visit by US Embassy Undersecretary of Trade and February 5, 2019 ATC (American Turkish Council) delegation

58 TEI POST

Visit by Head of International Cooperation Department of SSB March 15, 2019 (Presidency of Defence Industries)

Visit by Brazilian Air Forces Command Major General June 19, 2019 Rodrigo Fernandes Santos and accompanying delegation

May 3, 2019 Visit by Military Delegation of Brazil

June 11, 2019 Visit by MUSIAD (Independent Industrialists and Businessmen Association)

59 VISITORS

January 16, 2019 February 14, 2019 Visit by Samsun High-School Visit by students of Mechanical Engineering Department of Akdeniz University

February 21, 2019 14.03.2019March 14, 2019 Visit by Astronautical Engineering Department of ITU Visit by Principals of Vocational High-Schools

March 14, 2019 March 21, 2019 Visit by Department of Automotive Engineering of Visit by students of Mechanical Engineering Pamukkale University and the Department of Motor Vehicles Department of Konya Technical University and Transportation Technologies of Denizli Vocational School of Technical Sciences

March 22, 2019 March 29, 2019 Visit by Defence Industries R&D Personnel Training Program Makila 1A1 Project Review Meeting of Uludag University

60 TEI POST

April 3, 2019 April 10, 2019 Visit by Directorate General of Shipyards of Ministry of Visit by Engineering Association of Mimar Sinan University National Defence and Senior Colonels and High-Ranking Officers of Golcuk Naval Shipyard Command, Istanbul Naval Shipyard Command and Izmir Naval Shipyard Command Officers

April 18, 2019 April 19, 2019 Visit by Cankiri TOBB Science High-School Visit by Kutahya Technical High-School

May 8, 2019 May 24, 2019 Visit by students of Department of Material Science and Visit by Eskisehir ABIGEM (European Union Business Engineering of Eskisehir Technical University Development Center)

May 28, 2019 June 28, 2019 Visit by AKAER Visit by the Aeronautics Department of National Defence University

61 EXHIBITIONS & ORGANIZATIONS

EXHIBITIONS ATTENDED BY TEI

IDEF 2019 - 14TH INTERNATIONAL DEFENCE INDUSTRY FAIR

TEI participated in IDEF 2019, the most important defence industry fair in Turkey, with a booth. Held for the 14th time this year, the fair took place at Istanbul TUYAP Fair and Congress Center between April 30 - May 3.

TEI-PD170 turbodiesel aviation engine, TEI-TS1400 turboshaft core engine, TEI-TJ90 engines were exhibited at the TEI's booth, about the engine design and product development capabilities, the parts manufactured by TEI for LEAP, GEnx and F16 engine programs and the parts manufactured by means of the additive manufacturing technology considered as the manufacturing technology of the future were also exhibited, and the engine part module manufacturing capabilities were presented to the visitors. Also, the T700-TEI-701D turboshaft engine, which was manufactured by TEI under the Turkish Utility Helicopter Program, and which would power the T70 helicopters, was exhibited for the first time.

On the first day of the fair, Mr. President Recep Tayyip Erdogan and his accompanying delegation was informed by Prof. Mahmut F. Aksit, Chairman & CEO of TEI , about the national engine projects.

62 TEI POST

Suleyman Soylu, Minister of Interior and Mustafa Varank, Minister of Industry and Technology and Prof. Ismail Demir, President of Defence Industries and Hakan Fidan, President of National Intelligence Organization and General Yasar Guler, the Chief of General Staff, and his accompanying delegation visited TEI's booth, and they were informed by Prof. Temel Kotil, who served as a Chairman of the Board of Directors of TEI between 2017- 2019, and by Ahmet Kain, the Programs Director of TEI, about the products. We had the opportunity to meet the representatives of Turkish Procurement Authorities, international delegates and senior executives of our client OEMs during the organization.

Also, Defence Industry Network SavNET Connection Protocol and with TUBITAK BILGEM, Real Time Operating System Project signing ceremony was held in the second day of the fair. Visit by Suleyman Soylu, the Minister of Interior

63 EXHIBITIONS & ORGANIZATIONS

EXHIBITIONS ATTENDED BY TEI

VISITS HELD IN IDEF 2019

Visit by Mustafa Varank, the Minister of Industry and Technology

Visit by Prof. Ismail Demir, the President of Defence Industries

64 TEI POST

Visit by General Yasar Guler, the Chief of General Staff, and His Accompanying Delegation

Visit by Hakan Fidan, the Director of National Intelligence Organization

65 EXHIBITIONS & ORGANIZATIONS

EXHIBITIONS ATTENDED BY TEI

DEFENCE AND SECURITY FAIR LAAD 2019

TEI took part in the Defence and Security Fair LAAD 2019, which was organized in Rio de Janeiro, Brazil between April 2-5, and the TEI-PD170 turbodiesel aviation engine and the TEI-TS1400 turboshaft engine were exhibited.

AUVSI XPONENTIAL 2019

TEI attended and ran a booth at the AUVSI's Xponential, organized on April 30 - May 2 in the city of Chicago of the United States of America. TEI exhibited the TEI-PD170 turbodiesel and TEI-TJ90 turbojet engine during the fair which is the most important organization held for unmanned aerial vehicles. Also, Emin Tuzlu, the Piston Engines Subsection Manager at TEI, performed a presentation about the TEI-PD170 Turbodiesel Aviation Engine.

66 TEI POST

PARIS AIR SHOW 2019

TEI participated in Paris Air Show, which took place between June 17-23, and which is one of the most prestigious aviation fairs throughout the world, and it demonstrated its position in the domestic and national aviation and defence industries, and also it exhibited its manufacturing capabilities and its contributions to the global civil aviation.

During the 7-day fair, the TEI stand attracted great attention with its TEI-PD170 turbodiesel aviation engine, and its TEI-TJ90 turbojet engine, and its 5-stage blisk manufactured for LEAP, of which TEI is the world's greatest supplier, and which is the most preferred new generation commercial engine throughout the world, and also its additive manufacturing capabilities.

Paris Ambassador İsmail Hakki Musa

67 EXHIBITIONS & ORGANIZATIONS

EVENTS AND ORGANIZATIONS ATTENDED BY TEI

INTERNATIONAL APPLIED RELIABILITY AND DURABILITY CONFERENCE

Mujdat Aslan, Technical Leader in Design Integrity and Airworthiness at TEI, and Onur Arkan, Senior Engineer in Design Integrity and Airworthiness at TEI, participated in the “International Applied Reliability and Durability Conference", which was organized at the Middle East Technical University on February 11-12, 2019, and they performed their presentations.

THE EVENT FOR THE 6TH MATERIALS DAYS ORGANIZED AT ISTANBUL TECHNICAL UNIVERSITY

TEI participated in the 6th Material Days organized at Istanbul Technical University. During the event, Rabia Gunay, Material and Process Development Manager, and Ozdogan Turan, Senior Administrative Leader, in Human Resources, performed a presentation with respect to the Activities for Materials and Process Development Subsection Manager and Human Resources within TEI.

68 TEI POST

THE MINERALS, METALS AND MATERIAL SOCIETY CONFERENCE

Rifat Yılmaz, Technical Leader in Technology Programs and Goktug Kara, Technical Leader in Material and Process Development participated in The Minerals, Metals and Material Society Conference (TMS 2019), which was organized in the United States of America on March 10-14, 2019 this year, and the subject matter of which consisted of the recent developments in the field of material and process technologies.

MATERIAL DAYS AT GEBZE TECHNICAL UNIVERSITY

Rabia Gunay, Material and Process Development Subsection Manager, and Simal Cemre Yaman, the Material and Process Development Engineer, and Cansinem Tuzemen, the Technology Programs Engineer, participated in the Material Days organized at Gebze Technical University on March 14, 2019. The activities, carried out within the Materials and Process Management at TEI, were presented to the participants in the event.

69 EXHIBITIONS & ORGANIZATIONS

EVENTS AND ORGANIZATIONS ATTENDED BY TEI

COOPERATION CALL FROM GEBZE TECHNICAL UNIVERSITY AND TEI FOR THE INDUSTRY The “Cooperation Summit” was held on March 20, under the auspices of Prof. Muhammed Hasan Aslan, the Rector of GTU, and under the coordination of TEI and Energy Technologies Institute. Gebze Technical University (GTU), hosted the “Cooperation Summit", in which Prof. Mahmut F. Aksit, Chairman & CEO, TEI participated as the speaker. The importance of cooperation with the universities and industry was specified, and the SMEs were called for collaboration during the summit attended by Prof. Muhammed Hasan Aslan, the Rector, and Nilay Cosgun, Ph. D., and Prof. Arif Cagdas Aydinoglu, the Vice Rectos, and the Academicians, and the executives and employees serving at TEI, and the representatives of industrial organizations, and the students and citizens.

MR. ASLAN, THE RECTOR, PAID ATTENTION TO MISSION OF UNIVERSITIES During the summit, Prof. M. Hasan Aslan, Rector, who made an opening speech, emphasized that it was wrong to consider the universities as the institutions that provided only undergraduate education. He stated that the universities, which keep the educational qualifications at the highest level, became the places, in which new ideas were generated, and in which the prototype products were designed, and in which such ideas and prototypes eventually turned into any product and contributed to the national economy.

Mr. Aslan emphasized that TEI, which filled our nation with pride by offering the high quality products and services for the aviation industry, constituted an invaluable shareholder of GTU in terms of both its R&D studies and its manufacturing capabilities. Mr. Aslan also added that TEI created great opportunities for the students, who studied at GTU, through the projects carried out by TEI for the Turkish Aviation Industry, and also he thanked TEI management for their approach enabling their collaboration and support.

PARTS OF THE 1 OF EVERY 2 AIRCRAFT SUPPLIED BY TEI Speaking at the summit, Prof. Mahmut F. Aksit, Chairman & CEO, TEI , said that “1 of every 2 aircraft in the world is flying through the parts manufactured by TEI. Our design and indigenous product development as well as the quality product and smooth maintenance activities have made TEI the preference of many countries, ranging from the Far East to the American continent, in the field of aviation in. Of course our priority is to meet the needs

70 TEI POST

of our country. As a result of our efforts that we carried out accordingly, TEI has gained the ability to design and manufacture both piston engines and turbine engines.”

Referring to the achievements of TEI in the national and international arena, Mr. Aksit also said that “Our company, which is the world leader in the special process competence, received the ‘Best Supplier’ awards at the 2017 Paris Air Show and CFM 2018 in Shanghai. It was named as the "Best Repair Center” by NATO IAMCO for 3 times. We have developed and manufactured 7 indigenous engines within 5 years. We have targets in the forthcoming period: We have planned to grow 2 times in 2020 and 3 times in 2025. By 2030, we aim to increase our turnover up to $ 1 billion.”

IMPORTANCE OF QUALIFIED MAN POWER Adding that they do not neglect to invest in the qualified man power, which underlies their success, Mr. Aksit said that “Based on the idea of creation of an office, which is similar to our working offices, in the university, we have provided GTU with a High Computational Computer Laboratory. As a result of the protocol that we have executed recently, we have developed our projects, which we have carried out together with the university, through our Master's program that is carried out jointly by us and GTU.", and he highlighted the cooperation and called the SMEs for collaboration.

Stating that they need the support of the industry in order to manufacture the dynamic and static sub-systems with respect to the engine and component manufacturing, Mr. Aksit called the SMEs for collaboration, and he added that TEI would gain much more strength by means of such collaboration.

TEI ESTABLISHED A HIGH COMPUTATIONAL RESEARCH LABORATORY AT GEBZE TECHNICAL UNIVERSITY

Opening Ceremony of High Computational Research Laboratory established within Gebze Technical University Engineering Faculty with the contributions of TEI was performed on February 22. Professor Muhammed Hasan Aslan, Rector of GTU; Prof. Mahmut F. Aksit, Chairman & CEO, TEI; GTU faculty members, TEI officials, press members and students attended the opening ceremony. In the laboratory comprising 22 highly qualified R&D oriented computers will carry out studies on graduate and postgraduate students product development and research projects. All technical hardware included in the laboratory with a reliable IT infrastructure have been designed by TEI engineers and architects at TEI workshops as domestic production.

71 EXHIBITIONS & ORGANIZATIONS

EVENTS AND ORGANIZATIONS ATTENDED BY TEI

HEZARFEN AVIATION DAYS

Prof. Mahmut F. Aksit, Chairman & CEO of TEI , participated as the speaker in the Hezarfen Aviation Days organized at Eskisehir Osmangazi University between April 19-20.

ADDITIVE MANUFACTURING USER GROUP CONFERENCE

Akin Orhangul from the Technology Programs Management, and Simal Cemre Yaman from Material and Process Subsection Management participated in the AMUG 2019 (Additive Manufacturing User Group Conference), which was organized in the United States of America between April 1-4, and the subject matter of which consisted of the recent developments in the field of additive manufacturing technologies. During the conference, combination of the recent innovations in the 3D world and industrial innovations were discussed.

TURKEY MATERIAL INFORMATION TECHNOLOGIES SEMINAR

TEI participated in the Turkey Material Information Technologies Seminar organized between April 29-30. During the seminar, Hasan Fehmi Capin, Technical Leader in Material and Subsection Management, performed a presentation titled “Material Selection/Database Management for R&D Studies”.

72 ENVIRONMENTAL ANDTEI POST OCCUPATIONAL SAFETY

THE SLOGAN CONTEST UNDER THE THEME OF OCCUPATIONAL HEALTH AND SAFETY: “A HEALTHY FUTURE WILL COME WITH THE OCCUPATIONAL SAFETY” This year, the slogan “A Healthy Future Will Come With The Occupational Safety", which was proposed by Mehmet Urus, serving as Quality Technician, scored the highest and became TEI's Occupational Health and Safety slogan.

Establishment and development of are originality, impressiveness, Safety slogan should remind you “Occupational Health and Safety” corporateness and memorability. that the existence and continuity culture plays an important role in of an efficient working environment creating a healthy and safe working This year, the slogan “A Healthy can be ensured by the employees, environment. The planned and Future Will Come With The who are aware of Occupational systematic projects carried out in Occupational Safety", which was Health and Safety, and a safe relation to Occupational Health proposed by Mehmet Urus, serving working environment. and Safety protect the future of as Quality Technician, the employees and thereby the scored the highest enterprises. and became TEI's Occupational Health and This year, we, as TEI, have Safety slogan. Through been organizing the 3rd of the this slogan, the Industrial Occupational Health and Safety Safety Leadership Slogan Contest in order to conducts projects such contribute to raising awareness on as improvement on the Occupational Health and Safety and ventilation and suction to underline that the occupational systems of the machines, safety comes first in all of the acoustic improvements, activities being carried out. The ergonomic improvements employees have participated in and fire safety the contest, produced ideas and improvements in searched for the slogan every cooperation with the year, which enabled an important concerned directorates, step to be taken towards raising in addition to the awareness on occupational health activities carried out and safety. The slogans proposed as part of general by the employees are evaluated by Occupational Health the Industrial Security Leadership and Safety. TEI's under 4 different categories, which Occupational Health and

73 XXXXXXXXX EVENTS

rd

TRADITIONAL TEI SPRING TOURNAMENT

organizedThe Traditional TEI Spring Tournament, which has traditionally been organized since 1987, and which has been organized for the 33rd time this year, started on March 24, 2019.

It took place in 9 different branches consisting of football, basketball, volleyball, billiards, bowling, tennis, table tennis, darts and badminton. The inflatable playground, which is available in the area during the tournaments attended by more than 1000 TEI employees, and which was prepared for the children of the employees, was also one of the interesting activities.

The tournaments were completed upon the trophy ceremony organized on May 22, 2019. At the ceremony, the trophies were presented to the employees by TEI Board of Directors and TEI Senior Management. At the ceremony, among the 295 contestants from 39 countries participating in the 7th Underwater Photo Marathon and video contest, Erkan Balk, the employee serving at TEI Corporate Communications Leadership, who successfully represented Turkey as the world's second in the video category, was presented with a plaque for such success.

74 TEI POST

QUALIFYING EMPLOYEES

TENNIS 1. Ahmet Ozsahin 2. Guray Akbulut 3. Murat Deha Deger

TABLE TENNIS In Single 1. Mustafa Budun 2. Kivanc Akcesme 3. Basri Tuluoglu In Pairs 1. Mustafa Budun – Kivanc Akcesme 2. Omer Sarac – Vasvidin Gore 3. Murat Ozcan – Besir Ozgumus

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The inflatable playground, which is available in the area during the tournaments attended by more than 1000 TEI employees, and which was prepared for the children of the employees, was also one of the interesting BADMINTON Burak Unsal, Gunay Azbent, Huseyin activities. In Single Eron, Yusuf Toygar, Rasim Bugra Irk, 1. Mutlu Yesil Mehmet Dogan, Samet Balcik, Gural 2. Murat Kesmeli Oral 3. Taha Taner Inal 3. ES–O–ES: Ersin Kayaarasi, Bayram THE MOST GENTLEMAN TEAM In Pairs Kucukkaya, Selami Can, Yahya Iris, NDT & SPQ 1. Mutlu Yesil – Muhammed Fatih Yunus Can Kivrik, Kenan Seker, Fatih Tektas, Emre Ilme, Yalcin Dogan Muharrem Simsek, Emre Kuscu, Bayraktar, Ismail Karadeniz, Cengizhan 2. Murat Kesmeli – Taha Taner Inal Semih Kurt, Berat Sezer, Salih Gurses, Gul, Ali Can, Ilker Guclu, Hamdi Ayture, 3. Gurhan Kuzgun – Omer Faruk Ozkan Ayhan Ozturk, Yusuf Yalcin, Kagan Mehmet Aslan, Selcuk Kabak, Omer Dortkasli, Faruk Cincor, Tugay Koca, Sarac, Serhat Ustun, Ugur Koyunlar, BILLIARDS Yavuz Demirhan, Turker Durma, Serdar Selvi, Can Kulcanay, Kursat 1. Emrah Yilmaz Ugur Aksay, Turgay Can Sayim, Ersin Bayraktar, Ersen Altintas, Hakan 2. Engin Eden Ozturk Gunduz, Civan Mert Akin, Alper 3. Ugur Ozer Kocdeviren, Suleyman Cinar

FOOTBALL 1. AR – GE: Serdar Kayhan, Ilhan Gorgulu, Mustafa Kadir, Numan Yasar, Sefa Sanbay, Tutku Cemre Hatipoglu, Gokhan Gocmen, Muhammet Kazim Cingoz, Muzaffer Bilinmis, Enes Cakmak, Mehmet Mucuk, Yucel Beki, Abdullah Mesut Boz, Furkan Oz, Ali Nail Ozmusul, Coskun Tunca, Emre Gerceker, Yusuf Sancak, Mustafa Cem Sertcakan, Semih Avcun, Umut Sen

2. Maintenance: Mithat Sunecli, Recep Kizilin, Hasan Kocaeski, Murat Karaduman, Harun Erkan Yalcin, Kaan Koklu, Fatih Dalkic, Serkan Yavuz, Mahmut Sen, Erman Gunaydin, Volkan Samal, Ilter Aktas, Sabri Okur, Omer

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TOP SCORER Enes Cakmak- AR – GE

THE BEST GOALKEEPER Mithat Sunecli- Maintenance

VOLLEYBALL 1. Filemio: Deniz Asiklar, Ersin Kayaarasi, Hande Akbas, Oyman Kurban, Omer Burak Unsal, Burak Celebi, Burak Camurlu, Kenan Avadan, Kagan Dortkasli

2. Es-O-Es: Faruk Cincor, Yusuf Yalcin, Ugur Aksay, Cihad Emre Sezer, Ali Ipek, Ahmet Akturkoglu, Erdal Aslan, Anil Bayraktar, Selami Can, Ayhan Ozturk

3. Piston-Volley: Merve Cikla Sertcakan, Ozgur Alpan, Onur Aydogan, Haydar Onur Ozdemir, Ilayda Ugurlu, Cagri Devlez, Muzaffer Bilinmis, Riza Kayihan, Mustafa Cem Sertcakan, Serkan Kinden, Mehmet Kesbic

BOWLING 1. Testciler: Mehmet Emre Kurt, Ersin Basaran, Coskun Tunca, Ercan Eken, Mustafa Babacan, Cetin Enser, Kamil Kivrak

2. Blue Stamp: Bulent Ferli, Murat Uzbilir, Ismail Kurt, Ozgur Tunaboyu, Mustafa Saka, Cihan Sahin, Murat Sezer

3. Insert Bileme: Erhan Duman, Hakan Dogu, Fatih Kaynarcioglu, Megdat Yilmaz, Emrah Koseoglu, Can Ertunalilar, Serhat Can

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2018 ALL HANDS YEAR-END ASSESSMENT MEETING HELD BY EMPLOYEES SERVING AT DESIGN ENGINEERING DIRECTORATE

2018 All Hands Year-End Assessment Meeting was held on January 11, 2019 by the Design Engineering Directorate (TMD). Information on the current situation of the design engineering activities, the plans for 2019, the chief engineering office activities, and the Product Lifecycle Management (PLM), to be established newly in order to be used in the Turboshaft Engine Development Project as the pilot project, was provided during the meeting.

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Then, the TMD Management Awards for 2018 were BEST TECHNICAL GAIN / TECHNICAL presented to the winners by Ahmet Findik, Design EXCELLENCE AWARD Engineering Director, and managers of the respective • Mustafa Bilgic department.

MOST BENEFICIAL PATENT APPLICATION AWARD • Suleyman Muti • Mehmet Can Bicen

BEST CONTINUOUS IMPROVEMENT PROJECT AWARD • Ercan Eken • Muhittin Arslan • Ersin Askin • Sefa Sanbay Feridun Kuscu BEST YOUNG EMPLOYEE AWARD • • Sevket Ertekin

BEST TECHNICIAN PERFORMANCE AWARD • Celal Bora BEST LEADER AWARD • Emin Nadir Kacar

CORPORATE IMAGE CONTRIBUTION AWARD • Burak Balci • Alican Kutmaral • Firat Kiyici • Samet Aslan BEST PROJECT CONTRIBUTION AWARD • Mustafa Kocagul • Furkan Copur • Mujdat Aslan • Cagri Gezguc • Oktay Cevik

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TEI'S TRADITIONAL IFTAR DINNER ORGANIZED

TEI employees met on Wednesday, May 22 at the “Traditional TEI Iftar Program” organized at the social facility building on TEI campus.

Prof. Mahmut F. Aksit, Chairman & CEO, Prof. Rafet Bozdogan, Prof. Osman Saim Dinc, Melih Abis, consisting of the members of the TEI Board of Directors, also participated in the Iftar Dinner. Mr. Aksit, Chairman & CEO, shared his mid-year assessment for 2019 after the dinner, which drew a great deal attention from the employees.

EVENTS FOR APRIL 23 CHILDREN'S DAY ORGANIZED

Organized every year since 2009 as part of Events for April 23 dedicated to the children of TEI employees, the contest was held under the theme of “My Dream Robot”.

In the contest; in the category of 4-6 ages, Mehmet Can Ozdemir came in first, and Sait Uras Sahin came in second, and Ahmet Firat came in third; and in the category of 7-9 ages, Inci Kasap came in first, and Duru Sezgin came in second, and Kerem Alpan came in third. In the category of 10-14 ages, Ozen Zehra Ozenli came in first, Elif Demiroglu came in second and Elif Tasan came in third. The works, participating in the contest, were displayed at TEI Guesthouse in Children's Event for April 23.

April 23rd National Sovereignty and Children's Day was celebrated enthusiastically through the event organized at the TEI Guesthouse. The children had a pleasant time with the animation team during the event that was attended by 180 children and their families. Also, the organization completed upon presentation of the gifts to the children, who came in the painting contest, and to the other children, who participated in the contest.

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PAINTINGS PARTICIPATED TO CONTEST

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TEI CELEBRATED WOMEN OF AVIATION WORLDWIDE WEEK WITH TWO DIFFERENT ORGANIZATIONS

The week covering the date March 8th has been celebrated as “Women of Aviation Worldwide Week” in the memory of March 8th, 1910, when the first woman pilot was licensed across the world.

This year, TEI celebrated the Women of Aviation Worldwide Week with two different events organized both for female employees and female students. In TEI's Women of Aviation Conversation, the first event of the day, the female employees of TEI delivered inspiring presentations and shared their success stories with approximately 100 high-school students, while telling about being a female employee in aviation industry. The event ended with the “Aerial Quiz Show", which was held after the chat and included questions about aviation.

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Speech-Maker Yeliz Cetinkaya, Speech-Maker Asli Calikusu, Administrative Human Resources Director Affairs Advanced Lead Specialist

Speech-Maker Merve Gokce Unal, Speech-Maker Yasemin Yavas Eren, Manufacturing Lead Engineer NC/CNC Technician

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The lunch organized thereafter at TEI’s Guest House for its female employees was attended by Kevser Cakacak, the wife of Ozdemir Cakacak, the Governor of Eskisehir, Prof. Emine Nur Gunay, the member of the Parliament for Eskisehir, Alper Sezer, the Provincial Director of Family and Social Policies, and Prof. Mahmut Aksit, Chairman & CEO, TEI. The pleasant event ended after the female employees were given gifts. At the end of the organizations, TEI was granted with the “Most Female Friendly Corporation Worldwide” award by the Institute for Women of Aviation Worldwide in the competition attended by 39 different countries around the world.

Kevser Cakacak, the wife of Ozdemir Cakacak, the Prof. Emine Nur Gunay, the member of the Parliament Governor of Eskisehir, Prof. Mahmut Aksit, Chairman & for Eskisehir, Prof. Mahmut Aksit, Chairman & CEO, CEO, TEI, and his wife Safiye Aksit TEI, and his wife Safiye Aksit

The Lunch of TEI with Its Female Employees

The Champions of Aerial Quiz Show

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TEI VISITS MOTHERS ON THE 34TH ANNIVERSARY OF ITS INCORPORATION

On the 34th anniversary of its incorporation, TEI's volunteer female employees and TEI Social Responsibility Group members visited the women, who gave birth to their children on that day, and shared their happiness with the newborn sets they presented to these mothers.

BLOOD AND STEM CELL DONATION BY TEI'S EMPLOYEES

TEI organizes blood donation campaign two times a year as part of the Blood Donation Protocol signed with Blood Donation Center of Turkish Red Crescent in Eskisehir. In the blood and stem cell donation event organized on April 5 at the facilities of TEI in Eskisehir, more than 70 volunteers from TEI donated blood, and got information about stem cell donation and registered in the database.

APRIL 2, WORLD AUTISM AWARENESS DAY ORGANIZATION

TEI's volunteer employees hosted 15 students, receiving training at Tepebasi Municipality Center for the Disabled, and 2 teachers, serving at this center, in TEI's Guest House on April 2, World Autism Awareness Day.

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INTELLIGENCE WORKSHOP AND LIBRARY OPENING BY TEI

As part of our social responsibility projects, we opened a library at Seyit Gazi Religious Vocational Secondary School, and 7th Intelligence Workshops at Cevizli Primary School. The opening ceremony was held on March 12 upon attendance of Nabi Avci, the Former Minister of National Education and Culture and Tourism, Prof. Mahmut Aksit, Chairman & CEO, TEI, Hakan Cirit, the Provincial Directorate of National Education, several bureaucrats, townspeople and students.

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THE INTELLIGENCE WORKSHOP AT CEVIZLI THE LIBRARY AT SEYYID BATTAL GAZI RELIGIOUS PRIMARY SCHOOL VOCATIONAL SECONDARY SCHOOL

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BY MUJDAT ASLAN

PERSONAL INVENTORY OF THE DESIGN:

We can say that FMEA, which provides feedback to the system design based on the principle of induction, and which is one of the indispensable basic types of analysis in the aviation industry presently, constitutes any part of the personal inventory of the systems designed. This inventory is such an inventory that it can be concluded that it can clearly be foreseen how it can produce reactions with the environmental impact and that the risks, which may arise from such reactions, can be revealed; while it carries out the ordinary functionality of the system.

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"S/He is a very good person; s/he will not harm anyone.” "I can give a reference about her/him in every respect; I had no problems during the process in which we worked together.” "If s/he said so, then it is true; I take her/him on faith.” to provide assessment of such three concepts. One of such methods is "Personal Inventory Test". You have often come across such and similar sentences, which are widely used in daily life, and which serve as a The personal inventory tests are used to analyze the reference about any person. We are always confronted character of any person and to reveal her/his core with such and similar discourse when one of our friends competencies. Although they have various types talks about her/his another friend, and when we receive depending on the fields to be used, the purpose of all of a suggestion for any location or trip, and even when we them is actually to analyze the character of any person, try to obtain approval from those surrounding us before thus, to collect preliminary information about what kind of deciding to overcome a serious milestone with respect to attitude and behavior such person will exhibit. Thereafter, our bilateral relations. Even though we are the individuals, it is to identify the possible risks and to determine the who have a tendency to make individual decisions, our measures required to be taken specifically to the person decisions are seriously affected due to our risk-based with respect to such risks. Thus, the person will be involved evolutionary life strategy depending on whether such in the process at a controllable level of risk, and the discourses are positive or negative. sustainability of the process will have been ensured.

Such data collection process, which occurs in an Well, is it possible to talk about the concept of personality improvisational manner in the routine life, is performed on for the systems under consideration with respect to much more systematic basis in the professional life. It is engineering activities? As a matter of fact, we cannot considered as an effort to develop systematical preliminary assign any definition of personality to any system due information when any corporate company seeks for to the fact that we talk about the structures that cannot preliminary inventory in the event that it wishes to combine be considered theoretically in line with the definition of their paths with a new employee, or when any consultant personality. However, we cannot see any obstacle to say provides you with the forms, consisting of many questions. that "The systems have a combination of the personalities In fact, the focus of all of such improvisational and of their own designers" due to the fact that the functions, systematic data collection activities is to be able to identify which are installed on each system, and the expectations the personality characteristics basing on the temperament from such system are determined by the persons. and character. Therefore, we can perform personal inventory in the systems we have designed. TEMPERAMENT, CHARACTER AND PERSONALITY To what extent do your designs really meet your The temperament defines the most fundamental and expectations from them? What are the risks of unchangeable part of the character, which is transmitted deviations from expectations? To what extent do such through genes, while the character defines your part, which risks affect you and others? is shaped by the environmental and cultural impact, and which can therefore vary over time, as well as the entire of your temperament. The personality means the entire of We do not have a design personal inventory test in order those which you put forth by means of combination of your to be able to answer such questions; however, we have an character and your behavior. The psychological science has equivalent type of analysis that serves the engineering field: developed systematic measurement methods in a manner FMEA!

To what extent do your designs really meet your expectations from them? What are the risks of deviations from expectations? To what extent do such risks affect you and others?

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Part Failure Failure Effect Risk FAILURE MODE AND EFFECTS ANALYSIS: FMEA Function Name Mode (System Level) Level

FMEA is a type of analysis, which focuses on the possible Providing Current to Resistor Short the Fire Warning Lamp False Fire Warning High failure mechanisms of each part/function of any system Element circuit in Case of Fire designed, and which is carried out in order to identify the risks thereof by assessing the system level effect of the failure modes of such mechanisms. Many disciplines, especially The table presented above is an example of any FMEA in a Reliability, System Safety and Quality, can use such type simplified format basing on the resistor element of any fire of analysis by individuating it in a manner to serve its own warning circuit. The information about how we will encounter purpose. We can say that FMEA, which provides feedback with the system behavior in case of any short-circuit of the to the system design based on the principle of induction, and resistor element has been presented as “false fire warning”. which is one of the indispensable basic types of analysis in the This can be assessed as follows: In the event that we aviation industry presently, constitutes any part of the personal wish to use any resistor, having a short-circuit failure in its inventory of the systems designed. This inventory is such temperament, then such resistor will operate such failure an inventory that it can be concluded that it can clearly be mechanism one day. Although no fire is available at any time foreseen how it can produce reactions with the environmental that we do not wish, it will may exhibit any personality, which impact and that the risks, which may arise from such may impose stress on the system user by giving any fire reactions, can be revealed; while it carries out the ordinary alarm, and it may exhibit any personality that may affect the functionality of the system. operation negatively.

COMPONENT, SUB-SYSTEM AND SYSTEM The components shall constitute the basis of the systems, and such components create the sub-systems that combine and interface with each other, and ultimately a system behavior is exhibited with the operation of such sub-systems in a coordinated manner. The components are the unit elements having the failure mechanisms by their nature. Every component, which is considered to be covered by the mechanical, electrical, electronic or software category, absolutely have a failure mode. Any relay may be short- circuited, and any bracket may crack, or any code may be activated involuntarily. In respect of the design activities, it is not possible for us to get rid of such failure mechanisms on A GHOST PLANE: HELIOS AIRCRAFT ACCIDENT one hundred percent basis or to generate a design solution On 14 August 2005, Helios Airlines flight 522 crashed in having no failure mechanism by the nature of the matter. Greece with 115 passengers and 6 crew members. All of the At this point, we have to identify such types of failure and 121 persons passed away in the accident. improve the system behavior as we wish, accordingly. In consequence of the investigation performed with respect Every design has inherent risks. For example, any turbine to the wreckage following the accident, it has been identified aviation engine contains a mixture of high-temperature that the switch, which controls the system to keep the of burnt air-fuel. While fire is an incident required to be cabin at the pressure, rate and temperature that the extinguished when encountered outside, the combustion passengers could live when the aircraft was at the altitudes for an engine is an event undesirable to be extinguished above 8,000 ft. was in the "off" position. Helios Airlines' as long as it is in the controlled area. We can call it as Boeing 737-300 was subjected to the maintenance the the temperament of the design. When we consider such night before. During such maintenance, the switch was fire together with the enclosure that we built around the turned off, and it was forgotten in such position. When they combustion room in order to keep it under control, we discuss receive the aircraft in the morning, the pilots neglected such the character of the design. We can say that the thrust force switch, for which it was stated under the that the revealed at the end of the entire cooling system used in order switch was required to be in the "on" position under normal to cool such enclosure, combustion action and environmental circumstances, and they were not aware of the fact that equipment corresponds to the definition of personality. such switch is in the "off" position. As the altitude increased on the aircraft taken-off, the pressure and the oxygen level As specified in the two paragraphs above, we may seek for in the cabin began to decrease. In respect of Boeing 737- the Failure Mode and Effects analysis in order to improve the 300s; when the cabin pressure decreased, it was alerted system behavior as we wish and to monitor the way through by means of a loud horn and warning lights; however, such which it transmits the inherent risks to the system behavior. warning was confused by the pilots with another warning provided before take-off. Therefore, the pilots focused on the

90 TEI POST warning by ignoring the decrease in the cabin pressure, and analyses, which used in the field of aviation, and which review they continued to ascend. As the altitude increased further, the system behavior, and which reveal the risks thereof, the oxygen level decreased below the acceptable level, particularly FMEAs. Unfortunately, the fact that such analyses and the oxygen masks dropped down. The pilots, however, are considered as the documentation, and also the fact that tried to take action in order to turn off the warnings and they are performed without self-motivation based on the cautions without wearing the masks. The captain pilot made customer requests may lead us to face the consequences mistakes repeatedly by seeking for support from the relevant of conscience at the end of the day. Just as we ask about authorities, and s/he wasted the period of 90 seconds during the origin, of any fruit that we bought from the bazaar, just as which s/he could withstand without oxygen. Eventually, both we check the hardness and juiciness thereof, and just as we pilots, who suffered from due to low oxygen levels, fell checked that whether they are rotten, or not, and just as we asleep and died in the cockpit. ask any new person, whom we have met, some questions in order to try to know about her/him, and just as we subject In the meantime, the cabin temperature affected the operation any person to certain interviews during employment thereof, of electronic devices, and the engine began to be unable and just as we try to measure her/his personality and to take the cabin air due to failures of the pressure system. reactions to the certain situations, we are required to carry Accordingly, almost all of the passengers in the passenger out the activities that will grant the user of the products, cabin were affected by hypoxia. Although one of the cabin which re designed by us, with such right. crew members achieved to enter the cockpit by using an external oxygen cylinder, it was too late for the B737-300, Just as we are not willing to carry out the same activity as any which depleted its fuel for a long period of time in the standby person, who is only successful in technical exams, however, route defined in the flight computer in the Greece skyline. whose communication, attitude and behavior towards Two F16 aircraft from the Greek Air Force surrounded the people and incidents may be destructive, and just as we are aircraft, which did not respond to any directive, and they away from the individuals, who obviously damage us, we were presenting their observations. They were announcing should not consider any design, which has completed some any aircraft, which progressed towards the death along with qualification tests, however, which has no system behavior its sleeping passengers and pilots, like a ghost aircraft. Any analysis, to be appropriate for our mind, science/knowledge cockpit crew member, who entered the cockpit at that time, and personality. and who achieved to survive, would have lost her/his life as a result of depletion of the fuel. The engine number one stopped Today, in which the artificial intelligence is developed, and firstly due to depletion of the fuel. The aircraft, which has the in which the humanoid robots are designed and announced asymmetrical thrust, started to lie towards the engine side. as the citizens, if we choose to really recognize the systems The young crew member, who tried to take control of the we have designed, and if we begin to analyze our systems' aircraft by entering the cockpit, could not save the aircraft, and possible (error or expected normally) behaviors through a 737-300 type aircraft crashed into a mountainous region in self-motivation, perhaps we can also control our fears, which Greece along with 121 people. develops based on "Lack of self-confidence", and which consist of the fact that robots will occupy and capture the Helios disaster has showed that the results, which will be Earth and will attack us. called as disaster, might occur if the persons, who will interpret such warnings with respect to the warning system "It is a very good design; it will not harm the user." designs, fail to differentiate warnings from each other. "I can give a Although the warning systems we available, and even though reference about the actions were taken in a manner to change the warnings this design in every and sounds, the 121 persons, who lost their life, could not be respect; I had no saved. Therefore, we can say that it is essential to assess in problems during advance the behaviors of the systems, which are designed the process in by us proactively but not reactively, and to reveal the risks which I used this thereof. This is the only way to enable us to escape the product.” irreversible errors and to sleep with a clear conscience. “If this design gives a warning, then it The design activities constitute the activities in which the is true; we need to persons use their emotional and analytical capabilities in correct the error" ABOUT MUJDAT ASLAN common. Any new product or any existing product that has Born in 1990 in Ayancik, Sinop, He been improved should have the characteristics that will not We wish to create graduated from the Department of make its end user regret receiving it. In particular, no product healthy, beatific, Aircraft Engineering of Istanbul Technical should be released to the market without eliminating any peaceful and safe University in 2013. He has been serving as the Design Integrity and Airworthiness negative system behavior, which may arise with respect to and reliable designs Technical Leader at Senior Design Integrity the aviation products, due to the fact that such behavior as praised above... and Airworthiness Team Leadership since may have fatal consequences. There are many types of Be safe. 2014.

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IGNORE THE BARRIERS Interesting life story of Ibrahim Oguz who is a Hearing-Impaired Mechanical Engineer...

“To prove that the disabled can also achieve many Ibrahim Oguz had a highly severe loss of hearing, and he had things, it should be worked patiently and determinedly by to visit Germany in his childhood as there were only a limited adopting the approach of 'Faith will move mountains'.” number of treatment means in our country then. Initially he thought that he had a temporary disability; however once You'll understand what we're trying to say while reading he was turned out to be hearing impaired, he immediately the life story of Ibrahim Oguz who is a hearing-impaired accepted his condition and started to hold on to life with his mechanical engineer... heart and soul. Let's look at the details provided on the CV of Ibrahim Oguz: Knowing that it is not easy to overcome the barriers, Ibrahim “I was born in 1973 in Ortakoy/Aksaray. I'm currently residing Oguz expressed his feelings as follows: “When I looked at in Eskisehir, and I'm married with two daughters. I started to the people around me, I observed that everyone is different. study at Murat Atilgan Primary School in Eskisehir in 1980. I Some of them are wearing glasses, some of them are talking completed my secondary school education at Camlica Arts fast while some of them are unable to walk. If we consider School for Hearing-Impaired Persons, and my high school all these people as normal, then I'm a normal person, too. education in the Department of Machine Design at Ataturk In short, I was the biggest factor to help myself ignore all Industrial Vocational High School. I started to study at the barriers. Above all, I had a high level of self-esteem and self- Department of Mechanical Engineering, Suleyman Demirel confidence.” University in 1993 and graduated from this department in 1997 with achievement. Following graduation, I couldn't find “My biggest struggle started when I started to study.” a job for nearly 4 years. I tried to express myself with letters He was hardly admitted to schools due to his disability. and interviews, but I just failed. My path crossed with TEI Thanks to the struggle of his family, especially his sister, he in 2001. I worked as CNC Programming Lead Engineer at was admitted to the Department of Machine Design at Ataturk Manufacturing Engineering Management until 2013 when Industrial Vocational High School in Eskisehir. Adopting the I retired. After having a 2-year break, I have been working approach of “Faith will move mountains", he showed a great at TEI since 2015, and I'm serving as the Advanced Lead level of patience and acted determinedly to prove that the Engineer as part of the First National Turboshaft Engine disabled can achieve many things. Development Project of Turkey.”

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Stating that his biggest goal was to become an engineer, Mr. Oguz experienced a deep disappointment when he found out that it was impossible for him, as a disabled person, TURKISH SIGN LANGUAGE ALPHABET to receive prep courses for university or to receive private tuitions from teachers after a long period of struggle. In spite of all these unfavorable conditions, he took the Student Selection Examination in 1993 thanks to the great support and encouragement from his family, and he was entitled to study at the Department of Mechanical Engineering, Suleyman Demirel University in Isparta. He was the first hearing-impaired student to become entitled to study in a university across Turkey, which is an unforgettable achievement for him. During his tough school life, Mr. Oguz continued studying hard and became one of the top ten students in the university while two of his disabled friends, who started to receive high school education with him, could not be entitled to enroll in a university. This great achievement increased his enthusiasm for education, and he overcame all difficulties thanks to the support from his family, and he became one of the four students who were able to graduate from the Department of Mechanical Engineering in 1997.

Finding the opportunity to work at TEI after looking for a job for 4 years, and making great achievements ignoring all disabilities at work, Ibrahim Oguz gave the following advices in line with the lessons he has learned from his own life story:

“It is a great chance for us, the disabled, to live in Eskisehir. institutions, where and how they can obtain the hearing aids, if Because there is a high number of rehabilitation centers and so necessary, etc., their lives can be much easier. schools delivering special trainings for the disabled in line with their needs. Besides, all persons living in Eskisehir are It is of high importance to provide training on the sign language highly helpful for the disabled. This is why I have not faced so that the disabled are able to establish communication more with any difficulty in Eskisehir, especially across TEI. effectively. Upon completion of a training period of 120 hours, I was entitled to receive the Turkish Sign Language Training I owe the President and CEO of TEI, who have provided Certificate in 2015. You can also learn the sign language to substantial contributions to creation of an appropriate remove all barriers. Free sign language trainings are held by working environment for me and my other disabled many institutions. These include the Public Training Centers, colleagues, a debt of gratitude. I also can't help remembering municipalities and the Association of Training, Culture, Youth the tolerance, assistance and trust towards me by my and Sports Club for Hearing-Impaired Persons in Eskisehir. directors, managers, leader and colleagues. There are some tips for the ones, who are not familiar with the Moreover, I consider all foundations and non-governmental sign language, to help them communicate easily: organizations important for development of hearing-impaired • While talking to a hearing-impaired person, you can have individuals. If a family, who have found out that their child them be aware of it. You can make a hand signal or tap has a disability, establish contact with the non-governmental on their shoulders to ensure that they focus on you. organizations for guidance and can receive responses to all their questions and concerns, they can adapt to the process • It is good to ask a disabled person which communication more rapidly. If the families can receive responses to their means s/he prefers. S/He might prefer lip-reading which questions such as which authority they should apply to, requires you to talk slowly, or written communication. where to initiate the treatment process, which hospital they • Eye contact facilitates mutual agreement. should consult to or which educational institution they should apply to, which processes they should perform at such • If you are in communication with a disabled person who tries to read your lips, make sure that your face receives light and your lips are visible while you are talking. “Being a hearing-impaired person does I have to say here how difficult it is to raise a hearing-impaired not necessarily mean that we are unable to person, and what kind of challenges their families have to achieve anything. This is how I learned the face, and how low their life quality level is. I would like to take fundamentals of life. BELIEVE, STRIVE and this opportunity to extend my endless love and respect for the ACHIEVE.” families of all disabled persons for making such big self-sacrifices. Without them, we couldn't have achieved anything. We have squared the circle…”

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Only a few of people, even a few of those who claim to be very interested in sports, are familiar with “Free-Diving”. Sule Ozcan shares her experiences in this extremely challenging, interesting and instructive sports branch, which is even dangerous when performed unconsciously.

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Free-diving is a sports branch, which teaches you patiently how to use your mental strength and We have breathed and exhaled for will to cope with any kind She taught me how to clear my mind, numerous times all these years. But, of difficulties, stress and as well as correct , focusing we have never thought about the fact adverse conditions. and enjoying diving. The confidence that we have breathed in many star and admiration I had for being dusts each time we have breathed. accompanied by a person, who Each breath is an opportunity for us dived to a depth of 112 meters with a to excel ourselves. oxygen cylinder? No need!' It is only single breath, was a great motivation your courage that connects you to for me during the trainings. Free-diving is a sports branch, which life there. My older brother made me start free- teaches you patiently how to use diving. I used to watch him waiting your mental strength and will to cope CONTRIBUTION OF THE RECORD- without moving under the water for with any kind of difficulties, stress HOLDER minutes to hunt with a spear. I was and adverse conditions. However, holding my breath unintentionally as it is one of the most challenging One of the most important factors if I was watching a suspense-horror sports branches around the world, for success in this sports branch movie. When my brother realized it, and it should not be performed is your trainer. I can't help but talk he taught me a number of special unconsciously. It is difficult, but also about myself on this point. Practicing breathing techniques so that we nice to discover deep blue. with Derya Can, the world record- could dive together. As my passion holder in free-diving and national for the depths, which I dived in, For me, free-diving is where the real athlete, allowed me to achieve great increased, I got trainings to achieve world ends and freedom starts. 'An successes within a short period time. more.

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There is a sad and a funny event that I have gone through regarding this sports branch. The sad event is about a young boy who was watching me go up again and while I was diving in Fethiye. He did this is sometimes not not watch me once or twice while TO BE LIKE A FISH! under your control. So, never dive I was diving. Then I started to dive alone. When I started free-diving, what I inside the cave. When I turned back, wanted first was to be able to swim I saw him following me. There was no INTERESTING EVENTS freely among the fishes. Because, it way that his breath would allow him IN DIVING was one of the best ways to observe a fish is being one of them. Then, Free diving is a risky sports branch, I started to set goals for wreck which should never be performed diving. My first experience was the alone and without training. Use of Sunken Tank in Kas region. The first proper equipment also plays an diving was very exciting, and the important role. It is surely not a game joy of reaching such a depth, which like taking sand from the deep, which I dived before with a cylinder, with most of us used to play when we only a single breath was amazing. were kids. The boats carry all kinds of Right after the sunken tank, I dived people while going to diving. There are for the Sunken C47 Dakota Plane in many people, who try to do what they the same region. Each see from you. But, no one thinks about started to make me more excited. how this level can be achieved and But the attractiveness of deep blue how much effort should be spent. They also frightened me. Because once just focus on trying and saying “look, I you go down, you may not want to did it too”.

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to get out of there. Since he was not using , he was struggling as he was stuck on the upper surface of the tunnel. I went back to rescue him, but he was short of breath and fainted while resurfacing. I took him to the boat, and he was rescued by emergency response. What if I did not notice that he was following me… The funny event happened when I dived for sunken C47 Dakota Plane. When I free-dived for the sunken I have dived in deep blue plane, there was also a group of about 60 times in total. scuba divers underwater. When they The highest depth I have saw me without any oxygen cylinder, dived so far is 30 meters, they were and tried to put their but I am working on it. alternate air source in my mouth. That made me laugh unintentionally and I missed breathing. So, I hardly resurfaced. THE SECRET WITHIN THE PHYSIOLOGY... DIVING IN DEEP BLUE starting free-diving goes and the organs are not damaged. FOR 60 TIMES through an amazing experience called In addition, residual lung volume (the I have dived in deep blue about 60 'Mammalian ’. The air left in the lung when we breath out times in total. The highest depth I Mammalian Diving Reflex protects strongly), decreases (blood plasma, have dived so far is 30 meters, but the diver even in case of increase rather than air, is filled in) through the I am working on it… I will do much in pressure and in an anaerobic blood transfer, and in this way, free- better, as long as my health permits. environment. diver can dive deeper.

When the brain gets the signals like Blood transfer occurs when the depth water contact with face, pressure is above a certain level, not when you increase or temperature decrease, get into water. For a person who is not WHAT IS FREE-DIVING? which indicate that diving has started, trained, this depth is about 30 meters There are several types of free-diving; it slows down the heart. Such slowing and deeper. When you resurface, the however, in general, it is defined as ranges between 10% - 25%. As the blood plasma is re-absorbed. diving without any breathing aids heart slows down, the oxygen need (such as an oxygen cylinder). The decreases. The deeper you go, the diver takes a single breath of air slower your heart beats. During the on the surface and uses this single period of time that diving continues, breath until resurfacing. Although the blood flow to feet, legs, hands and free-diving seems to be made up of a arms are restricted to supply blood breath-holding ability, in fact, it is not. flow to the brain, which is the organ that needs the oxygen most. It would not be wrong to say that it is one of the most challenging sports Another adaptation is observed in body ABOUT SULE OZCAN cavities. The blood is transferred to the around the world. Breath-holding for She was born in 1989. She graduated from minutes and diving in a depth where body cavities of the free-diver during the Department of Electrical-Electronics even sunlight cannot reach require diving, in order to prevent collapse Engineering, Istanbul Kultur University in due to pressure. The alveoli inside 2013. She has been serving as Hardware physical and mental training. Design Engineer at Embeded Systems the lungs are filled with blood plasma. Subsection Management since 2017. Inner and outer pressure is equalized,

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ADRENALIN-FULL EXPERIENCE

Beside the adrenaline that he experiences during the races, Cem Tat, who has devoted himself to motorsports, also takes part in various activities at the Automobile Sports Federation and develops his passion, which adds color to his life in various manners... He also shows the ways to his friends, who wants to get to know motorsports and share these adrenaline-full experiences.

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I started motorsports, which has due to the seasonal conditions, become a passion for me since I have participated actively in 2010, with the European Rally The pleasant spirit of numerous races such as off-road, Championship that I participated companionship and rally, track racing, auto-cross, as in Istanbul in May of that year. getting the opportunity well as International Formula 1, With this race, which lasted three to see and examine truck racing and RX (World Rally days and added color to my life in closely the race vehicles Championship), WRC (World Rally different manners, I experienced were what motivated Championship). The pleasant spirit the excitement of meeting with the me the most. of companionship and getting the vehicles that I watched on shows. opportunity to see and examine closely the race vehicles were what The first race, which I was on my motivated me the most during own, was Konya Drag Race. I was these races. so excited to witness the races, In addition to the races that I which we used to watch on TV participate in, I am active in Turkish If you are also interested in as they were run in America, for Automobile Sports Federation automobile sports and want to the first time in our own country. (TOSFED) to share my experiences engage in this passion, you can I was also in charge of deciding with other race fans, who have participate in the supervisory the vehicles to participate in the devoted themselves to this sports. training and exam provided by Drag Race. The race, which started I have developed my passion not TOSFED in certain cities every after my checks, ended at the end only as a racer, but also in different year. You can go through this of two days full of adrenaline. It is categories. I have been serving as adrenaline-full experience, if you difficult for me to express in words a senior registered referee in the pass the exam and obtain the class how I felt and how much I was races for 9 years. Despite all of “D, C, B1, B, A, A” licenses by delighted. the difficulties I have experienced meeting the conditions.

ABOUT CEM TAT He was born in Istanbul on 1990. He has been serving as Assistant Quality Technician at Quality Management since 2015.

99 SOCIALXXXXXXXXX CLUBS SOCIAL ACTIVITY GROUP CUMALIKIZIK & ULUDAG TRIP

TEI's Social Activity Group organized a one-day trip to Cumalikizik & Uludag on January 26-27. 167 employees of TEI and their families took a walk in Cumalikizik under its authentic atmosphere on the first half of the day, and enjoyed the snow in Uludag on the second half of the day. The tripended with visit to historical Ulu Mosque and its surrounding.

MASUKIYE TRIP

TEI's Social Activity Group organized a one-day tour to Masukiye on April 13-14. The first stop of this pleasant tour, which was attended by 125 employees of TEI and their families, was Sapanca Lake for breakfast. After the breakfast, the group went to Masukiye, and then Acarlar Forest and Karasu.

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TEI's basketball teamparticipated in the basketball tournament organized between the companies, which are registered to Eskisehir Chamber of Industry, for the 50th anniversary of the establishment of Eskisehir Chamber of Industry.

101 XXXXXXXXXGEZİTRAVEL PERGAMON ANCIENT CITY

BY ONUR AYDIN

Pergamon, also known as Bergama, which is in the middle of the valley, which extends in East and West direction, is one of the most ancient settlements of the history of civilization. It is considered as a result of the excavation and research that history of the city dated back to Bronze Age and it was a route, which was used by nomadic people. The city, in which settlement existed in the period between B.C. 7th century – 6th century, for a period of 150 years (B.C. 281-133) was the capital of the Kingdom of Pergamon. After becoming the most important metropole of the era of Rome, respectively, Byzantine, Seljuq Empire and finally, Ottoman Empire reigned in the city.

Onur Aydin, who has been traveling in ruins and writing in his website with his friends to raise the awareness of people since 2016, is introducing Pergamon (Bergama), which is the city of firsts, for TEI Post readers.

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Bergama, which is the city of firsts, Bergama today by evolving in many has the feature of having the biggest languages, literally means "People library in Anatolia with 200,000 of the High City” in all languages. books, which was caused to build Pergamon, which was built on the by II. Eumenes after Library of peak of a mountain at the height of Alexandria with 500,000 books in 333 meters on the area, where Bakir Egypt. Bergama developed rapidly Cay flows into the sea, was a port city as a result of the competition with in those years and Mytilene (Lesbos) Alexandria Library and Egyptian, who Island was opposite that. Bergama, felt disturbed due to this situation, which is a nice town today with the prohibited Papyrus paper, which is effect of earthquakes and after the produced from the plant under the filling of the sea with alluviums carried same name, from importing to this by Bakircay, maintains its same area, because libraries were the most magnificence with the glitter of the important subjects of competition civilization, which it contains, despite of the ancient era. After that, all roughness, the cruelty of time and people from Bergama invented the human. Parchment paper, which is derived from animal skin and which is more Considering the settlement of the useful than Papyrus. Even today, city, the area of Acropolis, which it is still known as the paper, on was founded on a hill, was named Bergama, which is the which letters in finest quality will be as “Highest City” in Ancient Greek. written, and such letters may remain Acropolis was known as the area, city of firsts, has the for centuries like the first day with where the nobility, the king and his feature of having the no deformation. The library became family lived. In this city, which was biggest library in Anatolia one of three largest libraries of the built by means of land terracing due to with 200,000 books, world together with Alexandria and the topographic difficulty of the city of which was caused to Celsus in Ephesus. Pergamon, which Pergamon, there are two more places build by II. Eumenes after continues having the feature of being named as Middle and Lower City. In Library of Alexandria with the city of firsts in the field of health, the Middle City, which is entered from 500,000 books in Egypt. also became with the first therapy II. Eumenes door, there are Turkish and rehabilitation center, which was bath, various houses, gymnasium, founded in Anatolia, after Epidauros. a house of a noble and rich person named Diodoros Pasparos, which Even though there are various rumors has a wonderful ground mosaic, and about who founded Pergamon, also Demeter Hera Basilica. In the Lower known as Bergama, and what its City on the lowland, foundations of name is derived from, 3 different historical houses are revealed in the names become prominent. First excavation works, because people one is Pousanias, who was a Lydian lived here mainly. explorer and geographer. Second one is Pergamos,who is the hero of Traditions in major Roman and Greek Bergama in the book of “Description sites continued also in Pergamon of Greece", which was written by and each new king caused to build Pousanias in his travels from Greece a palace for himself. In the era of to Egypt. Finally it is said to be Roman Empire, Traian, King of Rome, founded by Telepos, son of Herakles. started to cause to build a temple for The most accepted information about his name, however, after his death, history of Bergama is in the book of the construction was expanded and “Anabasis” written by Xenophon, who completed by Hadrian. It is estimated was the student of Socrates, Greek that the height of the temple was up Philosopher, between B.C. 400-399. It to 27 meters in those years. One of is mentioned that Xenophonstopped the most important temples in the by Bergama and he stayed in the middle city of acropolis of Bergama house of Gongylos, who was a local is Temple of Demeter. Such temple manager from Eretria, who was was accepted as the second largest affiliated with a Persian emperor. religious center after the holy area of Pergamon, which is pronounced as Hera.

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Demeter, who is mentioned with Persephone, his daughter, is the goddess of Earth and Fertility and also she is sister of Zeus, chief god. Homer mentioned Demeter as “Holy goddess with beautiful hair” or "Demeter with Beautiful Braids”. Demeter, who represents abundance and fertility, was one of the most loved Greek goddesses and Thesmophoros festival was and they used to discuss and talk to celebrated for her. Thesmophoros The theater, which has city managers. In other words, many was her title. Such festivals lasted come from the past to the decisions about the city used to be between 9th and 13th days of October- present, and which may formed here. Equivalence of Agora in November, which is the period of be still seen with its seats, Roman civilization is Forum. Statues of cultivating crops. A temple was also gods and goddesses used to appear built for Athena, who is the goddess has the feature of being the in front of Agoras and they used to of mind, peace and wisdom, and this first in the world in terms decorate such areas. Such temples structure has the feature of being the of its structure. used to be in the middle of the agora most ancient temple known. There and all roads of the city used to reach were 10 columns on the long side and to agoras. 6 columns on the short side of the The theater, which has come from the temple. Even though it was built for In fitness centers, in today's Turkish, past to the present, and which may Athena, who is the goddess of mind, which were open to public, in be still seen with its seats, has the peace and wisdom, the inner holy which athletes mostly prepared feature of being the first in the world area was also dedicated to Zeus, who for competitions, which is called in terms of its structure. There are is the god of gods. Only temple staff Gymnasium in ancient Greek, various rumors that many theaters could enter into the inner holy area athletes used to be trained. In the were built by inspiring from that. The and the chamber, which is named as ancient city of Pergamon, there was westward theater was built in 3 stages. Cella and which is accepted as the the biggest Gymnasium of the era, There are 25 seats in the first stage, house of Goddess. It is not possible which consisted of 3 terrace areas. 33 seats in the second stage and 22 to see this important artifact today. Boys used to be trained in the Lower seats in the last stage. The theater, This is because Altar of Zeus, which Gymnasium, young boys used to be whose construction started and ended was built in B.C. 164 - 156, was trained in the Middle Gymnasium in the era of Hadrian, Roman Empire, taken to Germany by ships by being and adult men used to be trained have the capacity of 10,000 people. benefited from weak points of law in the Upper Gymnasium. In this The theater dating back to Hellenistic of the Ottoman Empire on historical distinguished city, where there were period has the feature of being the first structures in the last periods by Carl temples dedicated for many gods, theater with portable wooden stage Humann, the archaeologist, after there are 2 bathhouses and Odeion, with its steepest (33 degrees) structure. placing 132 panels and 2,100 parts, which is known as the place with the It is distinguished from other examples which have weight of 700 tons, into capacity of one thousand people, in the world due to such features. It 462 cases carefully. Other parts, which was used to listen to music and was designed in a manner that the which were taken from Bergama, to discuss political matters. wooden stage could be disassembled are exhibited in Pergamon museum and removed, after the show ends, not in Berlin. The only thing remaining It is good for us to explain that to cover Temple of Dionysos at the end from the temple is its foundations excavation works are continuing in of the terrace. There are a considerable at the size of 33x35 meters. All of Pergamon, which sheds lights on the number of people, who say that when such temples and palaces lost their history and which is one of the most they look at the theater at a distance, it importance with the addition of new important cities; we enjoy traveling as looks like a folding fan. building in time, any maintenance a team and it is one of the ruins that failed to be made and they were we will not get bored, even if we go Agora (Shop, Bazaar) was built just totally ruined in centuries. In Acropolis several times. This is all I will explain below the Altar of Zeus and in the area, where there are only ruins of about such ruins that I am sure that form of L shape. Agora contain small palaces, 5 Arsenals (Storage area you will also enjoy, if you are interested shops and it has a square. People, for military supplies) and about 900 in history and ancient sites at the least. who came together in this square, military guns were found during the God knows Bergama may call you. used to talk about all kinds of matters excavation works carried out. related to religion, politics and trade Take care of yourself.

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ASKLEPION TREATMENT CENTER The most important health center of Hellenistic Period and the Roman Empire is Asclepeion. Asclepeion is considered as one of the first health centers of the world. Some of the structure, which was built in about 4th century and whose both sides are in the form of a street with columns, have been revealed. In Asclepeion treatment center, which was a treatment center for patients coming from various parts of the world, means of therapy related to the healing water, fresh air and thermal spring as well as therapy methods with suggestion and entertainment were applied. gallery with columns were ruined disturbed Zeus, chief god, and with a big earthquake, they could destroyed Asclepius by sending Circular and high-rise structure in be reached to the present, because one of his thunderbolts to him. It Asclepeion treatment center was a they were repaired in the Roman era. is said that Apollo, his father, killed center, where patients were cured. There were statues of Asclepius, god Kyklops, who were the source of Many famous doctors from Bergama, of health, and people, who served Zeus' thunderbolts, and he took his especially Galenos, one of the most as priests in his era, here. There was son's revenge. According to a story famous doctors in the era, cured a theater with the capacity of 3500 told in Anatolia, the prescription their patients in this health center. people near the health center, which in Asclepius' hand was lost in soil Priest doctors waiting at the ruined was not very common it that era, after his death and garlic , which door determined who would be and it may be still seen today. It is is a panacea, arose with the rain. cured and who would not be cured. thought that the theater was caused This wild garlic, which are still used Only patients, who could pass to build by Hadrian and it is possible for treatments of diseases today, is through Via Tectra from the ruined to see an epigraph dedicated for cultivated in its natural environment door to the monumental entrance Asclepeion, god of health, on the in Bergama Asclepeion and its door without dying, were allowed columns of the theater stage. surrounding. after controlling the patients. Those other than them were never allowed. Structures of Asclepeion health I guarantee that when you stop by center are like that; let's mention Bergama, you will have your time Another one of the most attractive who Asclepeion was and why he fully and I say good bye by hoping structures of Asclepeion is a was so valuable that an epigraph that you will not return without temple, which draws attention was written for him and let's talk visiting Asclepeion treatment center, with its circular plan. Hemisphere about that. Asclepeion is the god where death is forbidden. dome of this structure dedicated of health in Greek mythology. He for Asclepeion, the god, was an was raised by Kherion , who was innovation for that era. Asclepeion a centaur. He knew the plants was famous for being one of the very well and he knew which plant most important health centers of was beneficial for human health, the era with medicinal, surgical and because he grew in the nature. Even medical treatments interlocked by though he remediated for people's means of suggestion and belief and diseases with his experience, his this fame has reached to the present. main purpose was to revive dead people. He figured out the secret WHO IS ONUR AYDIN? A small library building is seen next by extracting the arterial blood He was born in Bursa on 1987, graduated to the health center. The statue shedding the right side of Gorgons from Industry Engineering Department of Hadrianus, king of the era, was (Euryale, Stheno and Medusa) of Istanbul University in 2017. He has been continuing working as an Engineer placed to the library building and after they were killed. The fact that in the Domestic Business Development the king was honored. Even though Asclepius revived dead people Department since July 2019. columns in the north part of the with the arterial blood of Gorgons

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ANNOUNCEMENTSTEI POST FROM TEI

BETWEEN JANUARY 01, 2019 - DECEMBER 31, 2019

• Adnan Kapucu retired as Shop Supervisor on February 28, 2019, • Volkan Ozkan retired as Chief Technician on May 09, 2019.

We wish them all the best in their lives after retirement

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SELF-CONFIDENCE? SELF-ESTEEM?

Self-esteem of the person is about accepting oneself as it is. Whereas, self-confidence depends on being successful and therefore others' judgments. In the cases, we become unsuccessful because it is always possible for us to meet someone, who is better than us, it becomes inevitable to lose our self- confidence. On the other hand, our self-esteem depends on loving ourselves and liking ourselves.

We observe that the concept of not enough to achieve targets, they self-confidence bears different look for new targets. This pursuit and even conflicting meanings and persists on lasting for lifelong. Real associations in our culture from time happiness is incidental to a childhood, to time. We try hard to have a sense which has been spent in a supportive of “self-confidence", partly because family until the age of seven. Child of the effect of American culture, is omnipotent in this period, in other which we take as an example. We words, it has the whole power. It witness that those, who ate defeated takes everything for granted, it thinks in the field, attack to team players, it may do everything and it believes to whom they are defeated, and that it is immortal. Some people try to they attribute the reason of defeat maintain such features, because they Prof. Acar Baltas to the mistakes of the referee. We fail to grow to maturity, even if they Psychologist meet with few examples, in which are adults. Those, who have grown they congratulate their rival. We to maturity, meet with the sense of confuse constructive, realistic and reality and they learn the principle enterprising self-confidence with of reciprocity instead of being able dreamy, unrealistic and sort of to do everything. Self-esteem is defensive self-confidence. As a a characteristic, which is owned result, we perceive self-confidence by people growing to maturity in like a challenge, which we sometimes adulthood. overdo unnecessarily and almost like "bullying”. SELF-CONFIDENCE DEPENDS ON SUCCESS People look for success and Exaggerated self-confidence has happiness especially in their youth. reason, which is a sort of incidental When they see that success does to our culture. Pressure and the not bring happiness definitely; it is approach for “tripping up mistakes",

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Impact of “self-confidence” on individual and team success words, maturity, not intelligence (IQ) is not is indisputable, however, maintaining the success and with today's terminology. having inner peace is only possible with "self-esteem”. Even Self-esteem of the person is about though such two concepts, which seem very similar to each accepting oneself as it is. Whereas, other, coincide at some points, actually, they are different from self-confidence depends on being each other and such difference is ignored today gradually. successful and therefore others' judgments. In the cases, we become unsuccessful because it is always which start at young ages, constitute However, we have some difficulties possible for us to meet someone, serious obstacles related to the fact with judging our self-confidence. For who is better than us, it becomes that people reflect their own potentials example, when we are preparing for inevitable to lose our self-confidence. to the life. This is because giving the any challenge, exam or competition, On the other hand, our self-esteem opportunity to take initiative, whose we live as if the whole process was depends on loving ourselves and liking limits are kept broad, but which is well obliged to be experienced, as well ourselves. defined, to the child and awarding as we fail in some cases, where we for such behaviors may make the do everything, which is obliged to be Self-confidence does not bear a child itself and it causes the child to done. Self-esteem means accepting great importance itself contrary to feel valuable. The fact that, parents oneself and its borders. Self-esteem popular belief. For example, people appreciate and encourage the child means facing with facts in a sense. with the highest self-confidence in to take initiative ensures the child It means knowing oneself without the world are sociopaths and in the to feel qualified and strengthens the needing others to say what the person delusion period, maniacs. Realistic achievement motive. According to the may do, what it may not do, what it is self-confidence is based on others' research conducted, children, who are good at, what it is not qualified with. judgments about us and it requires to allowed to wander around the house be supported with success. In cases, by themselves, to select their own Impact of “self-confidence” on where such success is ensured, friends, to try new things, become individual and team success is not is confidence develops and it causes adults, who have a constructive indisputable, however, maintaining the person to feel better and to set its self-confidence, sense of responsibility the success and having inner peace targets higher. As a result, a person, and success. is only possible with "self-esteem”. who feels confident, will have a chance Even though such two concepts, to reflect all of its potential owned Positive, consistent and which seem very similar to each other, to the life. However, in some cases, understandable reactions, which we coincide at some points, actually, they where all kinds of right steps are taken receive from our environment, give us are different from each other and such to be successful, it is also possible to information about us. We are aware difference is ignored today gradually. be unsuccessful due to the difficulty of of what we may do and what we may the task or superiority of the rival. not do and we know ourselves. On the SELF-ESTEEM DEPENDS ON other hand, if we receive conflicting SELF-ACCEPTANCE On the other hand, self-esteem is the extension of the fact that the person and inconsistent reactions from our C. G. Jung, who is among the is at peace with itself. Self-esteem is environment, we will wait for approval milestones of history of psychology, about the fact that the person accepts from our environment for each of our says, “If you want to be happy, itself and its limits as it is and it is behaviors. When we are approved or recognize your limits and accept satisfied with that. Self-esteem is not we are successful, our self-confidence them”. Even though not many people damaged by failure, because it is not increases, when we are not approved know this saying, the following recipe open to external judgments. or we are unsuccessful, it will for happiness may reach to one's decrease. Self-confidence answers to eyes in any manner: self-esteem is the CONCLUSION the question of “How do others see answer to the question of “How do I me?”. Our perception about us does see myself?”. One of the questions, about which not become internalized; it remains “God, grant me the serenity to people are curious the most, is dependent upon others' judgment. accept the things I cannot change, the question of “Is there a life after Whereas, internalized sense of self is the courage to change the things I death?”. In the light of information the base of self-esteem and self-value. can, and the wisdom to know the and findings above, it seems that we difference.” may have a longer, more peaceful Self-confidence requires constructive and happier life before death, if we go and positive perspective towards What the poet actually means is out of others' judgments significantly. life and believing in its own power. emotional intelligence (EQ) or, in our What about it? Is it worth trying?

109 XXXXXXXXXHEALTH SUGGESTIONS SUGGESTIONS NUTRITION

The eating habits should be reviewed once again in winter. The factors such as decrease in temperature, inactivity and increase in the TO BOOST THE time spent indoor increase the risk of getting diseases. So, the food is one of the most powerful means for a boosted immune system. IMMUNE SYSTEM

In winter, the risk of getting diseases increases due to various factors such as decrease in temperature, restriction of activity and increase in the time spent indoor. Boosting the immune system is one of the musts to minimize this risk. In this context, the eating habits should be reviewed once again. Because, the food eaten in winter is one of the most powerful means for a boosted immune system. Mine Senarslan Toraman, Nutritionist and Dietitian at Acıbadem Eskisehir Hospital, lists the 9 important particulars that should be paid attention to as follows:

Mine Senarslan Nutritionist and Dietitian

110110 TEI POST

1 Make sure that your diet is Consuming legumes such as beans, 7 Don’t wait until you are adequate and balanced lentils and chickpeas once or twice a thirsty to drink water In order to boost our immune system week especially in winter will prevent Drinking water plays an important and keep it functioning, you need possible problems, since these role in functioning of . to form a healthy diet which is are high-quality vegetable protein Even if you do not often remember to adequate in high-quality protein, fat, sources. drink water in cold weather, a healthy carbohydrate and vitamin-rich foods. person needs to consume 30 ml So, your diet must include green leafy 5 Prefer a diet rich in probiotics water per kg daily. vegetables and fruits every day and in Probiotics prevent proliferation of every meal. pathogenic microorganism and help 8 Prefer herbal tea to support your immunity 2 Do not forget the vitamins for Winter teas help fighting against the a boosted immune system diseases in cold days. So, drinking Vitamin A and C support the immune any herbal tea such as sage, linden, system and decrease the risk of rose hip and echinacea tea at any catching infectious diseases. time of day will be one of the So, in winter, when influenza powerful aids to help you and cold incidences are to fight against microbes frequent, diets that are and so the diseases. You rich in vitamin C play can make a winter tea a very important role. by mixing 1 pinch of For this reason, you linden, orange peel of should pay attention a one finger-thickness, to consume products 1 stick of cinnamon that are rich in vitamin and 2-3 cloves with hot C, such as oranges, water and drink it at grapefruits, mandarin, any time of day. green peppers and parsley. You need to 9 Expose to sun include spinach, carrots, also in winter for your milk, eggs, yogurt and black vitamin D needs cabbage, which are all rich in The studies show that the vitamin A, frequently. cells, which are the strongest defense mechanism of the immunity 3 Consume oil-seeds such as system, need vitamin D to activate. almonds and walnuts to give you a You can meet the vitamin D need by feeling of satiety for a long time exposing to sunlight during the winter, Your diet needs to include oil-seeds the digestive and immune systems when the sun does not show itself to boost your immune system and for to function properly. So, you need to much. Walking 20-30 minutes at the a feeling of satiety for a long time. So, include yoghurt, kephir, vinegar and times of the day, when the sun shows you need to consume handful dried home-made pickles, which are among itself, will be sufficient for this. nuts and fruits such as raw almonds, the best probiotic sources, frequently. hazelnuts, walnuts, peanuts and cashews. 6 Consume fish at least twice a week 4 Prefer high-fiber foods more Although we live in a country that Less activity and low water is surrounded on three sides by consumption in winter may increase the seas, sea food consumption the constipation problem, which is not sufficient. I recommend you results in weight gain. So, high-fiber to consume fish, which is rich in foods need to be consumed more Omega-3 fatty acids and which boost in order to prevent constipation and our immunity, at least twice a week. support the immune system.

111 STRUCTURAL SPECIFICATIONS Integrated Inlet Particle Separator (IPS) Available Variable-Geometry (VG) Compressor T700-�EI-701D Available Compressor Stages 5-stage axial Platform of Use for 1-stage centrifugal T700-TEI-701D Engine �U�BOSHAFT �NGI�E Combustion Chamber Through-flow, annular type Turkish Aerospace T70 Gas Generator Stages Utility Helicopter 2-stage axial, air-cooled 2 x T700-TEI-701D Power Turbine Turboshaft Engine 2-stage axial Engine Weight 207 kg Engine Length 117 cm Maximum Engine Diameter 63 cm Depot Level Maintenance Concept On-condition Fuel Types JP-8, JP-5, JP-4 Maximum Speed 22,000 rpm (steady-state) / 25,300 rpm (transient) ENGINE SPECIFICATIONS

T700-TEI-701D name-plated PERFORMANCE SPECIFIC FUEL (SEA-LEVEL, STANDARD DAY) CONSUMPTION turboshaft engine is the first ever (SFC) helicopter engine manufactured in Maximum Single 2,000 shp Turkey, which will power the T70 Utility Engine (OEI - 2.5 [1,491 kW] minutes) Helicopters. With the Utility Helicopter Maximum 1,994 shp 0.465 lb/shp.hr Program; Turkey's various operational [10 minutes] (78 µg/J) [1,486 kW] demands in for cargo, search & rescue, Intermediate Power 1,902 shp 0.462 lb/shp.hr fire fighting, air ambulance, coast guard [30 minutes] [1,418 kW] (78 µg/J) missions shall be met and the Turkish Maximum 1,716 shp 0.462 lb/shp.hr industry will play a significant role in Continuous [MC] [1,279 kW] (78 µg/J) Power meeting the domestic needs in the Output Shaft 20,900 rpm military and civilian fields. Speed [Np] T700-TEI-701D name-plated engines Compressor 44,700 rpm of the helicopter are produced in Speed [Ng] Eskisehir by TEI. Service Ceiling 6,096 m [T70 platform*] (20,000 ft)

* Take-Off Weight: 18,000 lbs [8,165 kg]

T700-TEI-701D engine is manufactured by TEI under the license of GE. T700 is the registered trademark of General Electric. T70 is the registered trademark of Turkish Aerospace Industries, Inc. STRUCTURAL SPECIFICATIONS Integrated Inlet Particle Separator (IPS) Available Variable-Geometry (VG) Compressor T700-�EI-701D Available Compressor Stages 5-stage axial Platform of Use for 1-stage centrifugal T700-TEI-701D Engine �U�BOSHAFT �NGI�E Combustion Chamber Through-flow, annular type Turkish Aerospace T70 Gas Generator Stages Utility Helicopter 2-stage axial, air-cooled 2 x T700-TEI-701D Power Turbine Turboshaft Engine 2-stage axial Engine Weight 207 kg Engine Length 117 cm Maximum Engine Diameter 63 cm Depot Level Maintenance Concept On-condition Fuel Types JP-8, JP-5, JP-4 Maximum Speed 22,000 rpm (steady-state) / 25,300 rpm (transient) ENGINE SPECIFICATIONS

T700-TEI-701D name-plated PERFORMANCE SPECIFIC FUEL (SEA-LEVEL, STANDARD DAY) CONSUMPTION turboshaft engine is the first ever (SFC) helicopter engine manufactured in Maximum Single 2,000 shp Turkey, which will power the T70 Utility Engine (OEI - 2.5 [1,491 kW] minutes) Helicopters. With the Utility Helicopter Maximum 1,994 shp 0.465 lb/shp.hr Program; Turkey's various operational [10 minutes] (78 µg/J) [1,486 kW] demands in for cargo, search & rescue, Intermediate Power 1,902 shp 0.462 lb/shp.hr fire fighting, air ambulance, coast guard [30 minutes] [1,418 kW] (78 µg/J) missions shall be met and the Turkish Maximum 1,716 shp 0.462 lb/shp.hr industry will play a significant role in Continuous [MC] [1,279 kW] (78 µg/J) Power meeting the domestic needs in the Output Shaft 20,900 rpm military and civilian fields. Speed [Np] T700-TEI-701D name-plated engines Compressor 44,700 rpm of the helicopter are produced in Speed [Ng] Eskisehir by TEI. Service Ceiling 6,096 m [T70 platform*] (20,000 ft)

* Take-Off Weight: 18,000 lbs [8,165 kg]

T700-TEI-701D engine is manufactured by TEI under the license of GE. T700 is the registered trademark of General Electric. T70 is the registered trademark of Turkish Aerospace Industries, Inc.

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