Enhanced Aircraft Platform Availability Through Advanced Maintenance

Total Page:16

File Type:pdf, Size:1020Kb

Enhanced Aircraft Platform Availability Through Advanced Maintenance NORTH ATLANTIC TREATY RESEARCH AND TECHNOLOGY ORGANISATION ORGANISATION AC/323(AVT-144)TP/362 www.rto.nato.int RTO TECHNICAL REPORT TR-AVT-144 Enhanced Aircraft Platform Availability Through Advanced Maintenance Concepts and Technologies (Amélioration de la disponibilité des plateformes d’aéronefs par l’utilisation des technologies et des concepts évolués de maintenance) The Report of an investigation by the AVT-144 Technical Team, which includes information contributed during the Workshop documented in RTO-MP-AVT-144. Published June 2011 Distribution and Availability on Back Cover NORTH ATLANTIC TREATY RESEARCH AND TECHNOLOGY ORGANISATION ORGANISATION AC/323(AVT-144)TP/362 www.rto.nato.int RTO TECHNICAL REPORT TR-AVT-144 Enhanced Aircraft Platform Availability Through Advanced Maintenance Concepts and Technologies (Amélioration de la disponibilité des plateformes d’aéronefs par l’utilisation des technologies et des concepts évolués de maintenance) The Report of an investigation by the AVT-144 Technical Team, which includes information contributed during the Workshop documented in RTO-MP-AVT-144. The Research and Technology Organisation (RTO) of NATO RTO is the single focus in NATO for Defence Research and Technology activities. Its mission is to conduct and promote co-operative research and information exchange. The objective is to support the development and effective use of national defence research and technology and to meet the military needs of the Alliance, to maintain a technological lead, and to provide advice to NATO and national decision makers. The RTO performs its mission with the support of an extensive network of national experts. It also ensures effective co-ordination with other NATO bodies involved in R&T activities. RTO reports both to the Military Committee of NATO and to the Conference of National Armament Directors. It comprises a Research and Technology Board (RTB) as the highest level of national representation and the Research and Technology Agency (RTA), a dedicated staff with its headquarters in Neuilly, near Paris, France. In order to facilitate contacts with the military users and other NATO activities, a small part of the RTA staff is located in NATO Headquarters in Brussels. The Brussels staff also co-ordinates RTO’s co-operation with nations in Middle and Eastern Europe, to which RTO attaches particular importance especially as working together in the field of research is one of the more promising areas of co-operation. The total spectrum of R&T activities is covered by the following 7 bodies: • AVT Applied Vehicle Technology Panel • HFM Human Factors and Medicine Panel • IST Information Systems Technology Panel • NMSG NATO Modelling and Simulation Group • SAS System Analysis and Studies Panel • SCI Systems Concepts and Integration Panel • SET Sensors and Electronics Technology Panel These bodies are made up of national representatives as well as generally recognised ‘world class’ scientists. They also provide a communication link to military users and other NATO bodies. RTO’s scientific and technological work is carried out by Technical Teams, created for specific activities and with a specific duration. Such Technical Teams can organise workshops, symposia, field trials, lecture series and training courses. An important function of these Technical Teams is to ensure the continuity of the expert networks. RTO builds upon earlier co-operation in defence research and technology as set-up under the Advisory Group for Aerospace Research and Development (AGARD) and the Defence Research Group (DRG). AGARD and the DRG share common roots in that they were both established at the initiative of Dr Theodore von Kármán, a leading aerospace scientist, who early on recognised the importance of scientific support for the Allied Armed Forces. RTO is capitalising on these common roots in order to provide the Alliance and the NATO nations with a strong scientific and technological basis that will guarantee a solid base for the future. The content of this publication has been reproduced directly from material supplied by RTO or the authors. Published June 2011 Copyright © RTO/NATO 2011 All Rights Reserved ISBN 978-92-837-0131-6 Single copies of this publication or of a part of it may be made for individual use only. The approval of the RTA Information Management Systems Branch is required for more than one copy to be made or an extract included in another publication. Requests to do so should be sent to the address on the back cover. ii RTO-TR-AVT-144 Table of Contents Page List of Figures xiii List of Tables xx Acknowledgements xxi Programme Committee xxii Authors xxiv Executive Summary and Synthèse ES-1 Chapter 1 – Introduction 1-1 1.1 Objective and Scope 1-1 1.2 Approach Used by Technical Team 1-1 1.3 Other Relevant NATO RTO AVT Panel Investigations 1-2 1.4 Terminology 1-2 Chapter 2 – The Importance of Aircraft Platform Availability 2-1 2.1 Introduction 2-1 2.2 The Contribution of Availability to Military Capability 2-1 2.2.1 Military Capability 2-1 2.2.2 Force Effectiveness and Readiness 2-1 2.2.3 Aircraft Availability – A Key Measure of Force Effectiveness and Readiness 2-2 2.2.4 Relationship of Capability, Effectiveness and Availability in Systems Modelling 2-2 2.2.5 Availability and Mission Reliability 2-3 2.2.6 Maintenance-Free Operating Period (MFOP) 2-4 2.2.7 Availability Targets 2-5 2.2.8 Efficiency and Availability 2-6 2.3 Aircraft Availability in Some NATO Air Forces 2-6 2.3.1 Aircraft Availability in France 2-7 2.3.2 Aircraft Availability in the UK 2-8 2.3.3 Aircraft Availability in the USA 2-12 2.4 Goals and Strategies for Improving Aircraft Platform Availability Including Mission 2-19 Reliability 2.4.1 Availability Depends on the Need for Maintenance and the Associated Downtime 2-19 2.4.2 Through Life Goals for Optimizing Aircraft Availability 2-20 2.4.2.1 Goals for Aircraft Design and Development 2-20 2.4.2.2 Goals for the Maintenance/Support System 2-21 2.4.3 Joint Goals and Strategies for Minimising the Need for Maintenance 2-22 2.4.3.1 Maximise the Inherent (Design) Reliability and Mission Reliability 2-22 RTO-TR-AVT-144 iii 2.4.3.2 Achieve the Inherent (Design) Reliability and Mission Reliability in 2-24 Service 2.4.3.3 Limit Maintenance to Essential Tasks 2-25 2.4.4 Joint Goals and Strategies for Minimising Downtime for Required Maintenance 2-26 2.4.4.1 Design the Aircraft for Maintainability (Ease of Maintenance) 2-26 2.4.4.2 Reduce Downtime for Servicing 2-28 2.4.4.3 Reduce Downtime for Replacement/Restoration of Lifed Components 2-29 2.4.4.3.1 Focussed Design for Maintainability 2-29 2.4.4.3.2 Extend Remaining Useful Life 2-29 2.4.4.3.3 Improve the Scope and Accuracy of Usage Monitoring 2-29 2.4.4.3.4 Use On-Condition Inspections Instead of Component 2-29 Replacement/Restoration (Condition-Based Maintenance – CBM) 2.4.4.4 Reduce Downtime for Inspections (On-Condition and Failure Finding 2-31 Tasks) 2.4.4.5 Reduce Downtime for Age Exploration 2-32 2.4.4.6 Reduce Downtime for Diagnostics 2-32 2.4.4.7 Reduce Downtime for Failures that Cannot be Duplicated (CND) 2-33 2.4.4.8 Reducing Downtime for Repair 2-34 2.4.5 Health Monitoring and Management (HUMS/SHM/PHM/DPHM/IVHM) 2-35 Chapter 3 – Some National Perspectives on Aircraft Maintenance/Support 3-1 3.1 Poland 3-1 3.1.1 Effect of Political Change on Aircraft Maintenance 3-1 3.1.2 Reverse Engineering 3-1 3.1.3 Collection and Analysis of Maintenance and Operational Data 3-1 3.1.4 Monitoring of Aircraft Loads and Usage 3-2 3.1.5 Diagnostic and Non-Destructive Inspection Systems 3-3 3.1.6 Changes in Maintenance Systems 3-5 3.2 France 3-6 3.2.1 Change Motivated by Poor Availability and High Costs 3-6 3.2.2 Evolution in Design and In-Service Support to Achieve Deployability and 3-7 Repairability 3.2.2.1 French Air Force and Navy Experience with Deployed Operations 3-7 3.2.2.2 The Use of Integrated Logistics Support (ILS) to Achieve Deployability 3-7 and Repairability 3.2.3 Structure Intégrée de Maintien en condition opérationnelle des Matériels Aéronautiques 3-8 du ministère de la Défense (SIMMAD) 3.2.3.1 SIMMAD’s Genesis 3-8 3.2.3.2 SIMMAD’s Position in its Institutional Environment 3-9 3.2.4 Innovative Maintenance Concepts 3-11 3.2.4.1 The Case for Outsourcing 3-11 3.2.4.2 Maintaining the Rafale 3-11 3.3 Czech Republic 3-13 3.3.1 Historical Events 3-13 3.3.2 The Development of the Maintenance Concept for the L-159 Light Combat Aircraft 3-14 3.3.3 Engine 3-16 iv RTO-TR-AVT-144 3.3.4 Avionics 3-16 3.3.5 AMOS Flight Data Recording System 3-16 3.3.6 Reliability and Availability 3-20 3.4 Netherlands 3-20 3.4.1 Availability as a Global Performance Indicator 3-20 3.4.2 Integrated Weapon System Management 3-21 3.4.3 Measures to Improve the Availability of the F-16 Fleet 3-21 3.4.4 Prognostic Health Monitoring 3-23 3.5 Sweden 3-24 3.5.1 Introduction 3-24 3.5.2 Description of the Swedish Defence Materiel Administration (FMV) 3-24 3.5.3 Life-Cycle Management at FMV 3-26 3.5.4 Integrated Operations and Maintenance System 3-28 3.5.5 The Availability Performance Program (APP) 3-31 3.5.5.1 Purpose and Content of the APP 3-31 3.5.5.2 The Importance of Understanding Operational and Support Requirements 3-33 3.5.5.3 Integration of the Design of the Aircraft and the Support System 3-34 3.5.5.4 Optimising the Support System with Respect to Availability and Cost 3-35 3.5.6 The Application of FMV’s APP to Recent Aircraft Programs 3-36 3.5.6.1 The Jas 39 Gripen 3-36 3.5.6.2 Nordic Standard Helicopter Program (NSHP) 3-42 3.6 United Kingdom 3-47 3.6.1 Introduction
Recommended publications
  • Download The
    COUNCIL FOR CHRISTIAN COLLEGES & UNIVERSITIES ADVANCE SPRING 2021 MAGAZINE Campus Stories The International Student Mental of Innovation Impact of COVID-19 Health in a Pandemic p. 20 p. 30 p. 38 THE LEADING NATIONAL VOICE OF CHRISTIAN HIGHER EDUCATION Are You Ready to Faithfully Engage with Culture? 1960 We have the opportunity to use our words and our voices for the common good. We insured our first Christian college in 1960. They’re still a customer today. How might we love God and our neighbors through In the midst of a divisive culture, public intellectuals This book offers a vision for ex- Find out why at the task of writing? speaking from an evangelical perspective have a pressing one’s faith through writing and for understanding critical role to play—within the church and beyond. brotherhoodmutual.com writing itself as a spiritual practice that cultivates virtue. Contributors Miroslav Volf, Amos Yong, Linda A. Drawing on authors and artists throughout the church’s Livingstone, Heather Templeton Dill, Katelyn Beaty, history, we learn how we might embrace writing as an act Emmanuel Katongole, John M. Perkins, and David of discipleship for today. Wright cast a vision for intellectuals who promote human fl ourishing. “When Christians compose with the aim of enacting “Whether as theologians, scholars, journalists, or charity, they listen with humility, they respond to others as social activists, Christians have been called to identify fellow children of God, and they demonstrate the discipline and argue for a vision of human fl ourishing that crosses required by the metanoic process of writing.
    [Show full text]
  • Powerpoint Template with New NAHEMA Logo
    5 & 6 OCTOBER 2016 LISBON, PORTUGAL 1. NH90 programme 2. JMAAN organization 3. EMAR Transition for NH90 (EMAR-T) 4. Conclusion NATO UNCLASSIFIED 2 1. NH90 programme 2. JMAAN organization 3. EMAR Transition for NH90 (EMAR-T) 4. Conclusion NATO UNCLASSIFIED 3 Corporate Identity: NAHEMO is a subsidiary body of NATO NAHEMA is the international programme office of NAHEMO Established: In 1992, in Aix-en-Provence (France) in vicinity of industrial consortium NHIndustries Mission: Management of the NH90 programme on behalf of the NAHEMO Nations, during the design & development, production & post-design and in-service support phases NATO UNCLASSIFIED 4 1 product: NH90 2 Versions: TTH, NFH >20 Variants: TGEA, GITA, TFRA, HITN, NBEN, NNLN, … Customer: NAHEMA 11 Nations: BEL, DEU, FRA, ITA, NLD, AUS, ESP, FIN, NOR, NZL, SWE, (GRC, OMN) Contractor: NHIndustries 4 Industries: AH, AHD, FK, LHD Design & Development (D&D) development of two versions TTH and NFH signed in 1992 Export Production Investment/ Production (PIP) production of the serial helicopters in different variants signed in 2000 (25 Contract Amendments so far) first serial helicopter delivered in 2006 (IOC) and 2012 (FOC) In-service support more than 240 helicopter in service with over 100k logged flight hours NATO UNCLASSIFIED 5 1. NH90 programme 2. JMAAN organization 3. EMAR Transition for NH90 (EMAR-T) 4. Conclusion NATO UNCLASSIFIED 6 JMAAN is a body of the NH90 Community JMAAN regulates all processes in the field of: • Military Design Organisation Approval • Rule-making
    [Show full text]
  • Rotorcraft (2011)
    Rotorcraft Overview The rotorcraft industry produces aircraft, powered by either turboshaft or reciprocating engines, capable of performing vertical take-off and landing (VTOL) operations. The rotorcraft sector includes helicopters, gyrocopters, and tiltrotor aircraft. Helicopters, which employ a horizontal rotor for both lift and propulsion, are the mainstay of the industry. Gyrocopters are produced in much smaller quantities, primarily for use in recreational flying. Tiltrotor aircraft, such as the V-22 Osprey1, can take off vertically and then fly horizontally as a fixed-wing aircraft. Rotorcraft are manufactured in most industrialized countries, based on indigenous design or in collaboration with, or under license from, other manufacturers. Manufacturers in the United States of civilian helicopters include American Eurocopter, Bell, Enstrom, Kaman, MD Helicopters, Robinson, Schweizer (now a subsidiary of Sikorsky), and Sikorsky. Bell moved its civilian helicopter production to Canada, with the last U.S. product completed in 1993.2 American Eurocopter—a subsidiary of the European manufacturer and subsidiary of EADS NV—has manufacturing and assembly facilities in Grand Prairie, Texas and Columbus, Missouri. European producers include AgustaWestland, Eurocopter, NHIndustries, and PZL Swidnik. Russian manufacturers including Mil Moscow, Kamov and Kazan helicopters, as well as a number of other rotorcraft related companies, have been consolidated under the Russian government majority-owned OAO OPK Oboronprom.3 (See this report’s Russia
    [Show full text]
  • TWO PRODUCTION Nh90s FIRST FLIGHT the SAME
    FINLAND SIGNS THE CONTRACT FOR 20 NH90 HELICOPTERS Helsinki, 19 October 2001 Today Mr. Jan-Erik Enestam, Minister of Defence of Finland, Mr. Eero Lavonen, National Armament Director, and Mr. Philippe Stuckelberger, General Manager of NHIndustries, signed the purchase contract for 20 NH90 helicopters. After two year’s competition, this follows the NSHP Committee recommendation in favour of the NH90 as the common helicopter, announced on 13 September 2001. Besides the Acquisition Contract the Finnish MOD and NHI signed the Side Agreement concerning the allocation of a NH90 final assembly line to Finland, as well as the Agreement on Industrial Participation giving Finnish defence industry the opportunity to participate in the manufacturing of parts and the assembly of purchased equipment. The 20 Finnish NH90 helicopters are in the Tactical Troop Transport configuration, derived from NAHEMA TTH version, and will be operated by the Finnish Defence Forces (Army Aviation) in the tactical transport and SAR roles. All the Finnish NH90 are equipped with the Rolls-Royce Turbomeca RRTM322-01/9 engine. First NH90 TTT helicopter will be delivered to Finnish Defence Forces in late 2004, and the series will be completed at the Finnish assembly line specifically arranged in Patria Finavitec, in collaboration with NHIndustries, within the year 2008. This new contract with Finland increases the firm orders of the NH90 up to 291 units, and the options up to 62. Moreover France, Germany, Italy, Portugal, Sweden, and The Netherlands, together with Finland, are ready to welcome Norway that is expecting to sign the supply contract for the NH90 within few weeks.
    [Show full text]
  • TWO PRODUCTION Nh90s FIRST FLIGHT the SAME
    NH90 HELICOPTER FLIGHTS AT ILA 98 Berlin, 18 May 1998 For the first time a helicopter featuring a redundant digital Fly-By-Wire control system is flying at ILA Airshow in Berlin. The second prototype of NH90 helicopter (PT2) is arrived at Schönefeld/Diepensee airport following a 650 NM flight from Marignane airport (south of France). NH90 is ready to fly in the presence of the officials, press and public visiting the Airshow. The Fly-By-Wire solution allows the optimisation of the handling qualities in the complete flight envelope. It reduces weight and complexity of the control system (control rods, mixing units,...). It also means reduction of vulnerability and augmentation of safety (high redundancy). Furthermore it allows the evolution of the control laws which enable consideration of future operational needs. This technological innovation has the precise task of drastically reducing the pilot workload in any operational environment and let him concentrate on the mission he is called to perform. NHIndustries, the prime contractor for the quadrinational NH90 helicopter Programme (launched by France, Italy, Germany and The Netherlands) is pleased to say that this presentation has satisfied the high expectations in Germany. Germany is one of the Nations participating in the NH90 Programme with the view of pursuing common defence means, common strategies and the reinforcing of European cooperation. Needs for replacement of existing fleets, for tactical transport and naval missions, are playing a major role in the NH90 Programme both in the Four Participating Nations and in the Export market. This is leading to an impressive scale helicopter market and has enabled NHIndustries to apply the most suitable policies to be highly competitive worldwide.
    [Show full text]
  • The Market for Medium/Heavy Commercial Rotorcraft
    The Market for Medium/Heavy Commercial Rotorcraft Product Code #F605 A Special Focused Market Segment Analysis by: Rotorcraft Forecast Analysis 4 The Market for Medium/Heavy Commercial Rotorcraft 2011-2020 Table of Contents Executive Summary .................................................................................................................................................2 Introduction................................................................................................................................................................2 Trends..........................................................................................................................................................................3 Competitive Environment.......................................................................................................................................7 Market Statistics .......................................................................................................................................................9 Table 1 - Medium/Heavy Commercial Rotorcraft Unit Production by Headquarters/Company/Program 2011 - 2020......................................................10 Table 2 - Medium/Heavy Commercial Rotorcraft Value Statistics by Headquarters/Company/Program 2011 - 2020 ......................................................12 Figure 1 - Medium/Heavy Commercial Rotorcraft Unit Production 2011-2020 (Bar Graph).....................................................................................14
    [Show full text]
  • TWO PRODUCTION Nh90s FIRST FLIGHT the SAME
    FIRST PATRIA-ASSEMBLED NH90 TAKES OFF Aix-en-Provence, 13 July 2005. NHIndustries is proud to announce that the first serial production NH90 assembled outside the NHIndustries community took to the air today at the Patria facility of Halli, Jämsä - Finland. The flight started at 9:30 and lasted 65 minutes. The NH90 was flown by: - Didier GUERIN experimental test pilot, - Nicolas CERTAIN flight test engineer, - François ROSTAING flight engineer. The serial production NH90 are mainly born from one of the 3 assembly lines of the NHIndustries Partner Companies community: Cascina Costa in Italy for AgustaWestland, Marignane in France and Donauwörth in Germany for Eurocopter. KH-202 is the first Finnish NH90 helicopter assembled by Patria, the Finnish Aerospace and Defence Group. Patria, through a subcontract with Eurocopter, in the frame of the main contract offset obligation, is operating the 4th NH90 assembly. The contract calls for a series production of a minimum of 50 helicopters whose main modules are supplied to Patria from NHIndustries Partner Companies. Locally, the employment effect is approximately 650 man-years. Patria is currently assembling 5 helicopters and deliveries of these 50 NH90 will be completed by 2011. The first flight of KH-202 occurs after a splicing phase completed in October 2003, the equipment installation during 2004 and system tests started in January 2005. On 19 October 2001, Finland ordered to NHIndustries 20 NH90 in the Tactical Troop Transport configuration, after a severe competition through the Nordic Standard Helicopter Programme (NSHP). After the usual customer-dedicated equipment integration, KH-202, the Finnish NH90 flying at Marignane from 15 September 2004 and the 18 Finnish NH90 to come will be operated by the Army Aviation of Finland in the Tactical Transport and SAR roles.
    [Show full text]
  • The Australian Defence Force Receives Its First Mrh90
    THE AUSTRALIAN DEFENCE FORCE RECEIVES ITS FIRST MRH90 Aix en Provence, 18 th December 2007 NHIndustries is proud to announce that the Commonwealth of Australia took delivery of its first two MRH90 Multi Role helicopters. These helicopters which have been officially delivered today by Australian Aerospace to the Defence Materiel Organization (DMO) have been assembled in Marignane (France) by Eurocopter and delivered last month to Australian Aerospace (Brisbane). They will be followed by a second batch of two MRH90 assembled in France while the remaining 42 helicopters purchased by Australia will be produced and delivered by Australian Aerospace in the Brisbane facility. “This delivery on time of the first batch of two MRH 90 is another great achievement in this programme and the result of a flawless cooperation between the Australian Authorities and Industry, this last party encompassing Australian Aerospace, NHIndustries and its Partner Companies to provide the Australian Defence Forces with the most advanced helicopter of its generation” declared Mrs Gala Gonçalves the NHIndustries General Manager. The MRH 90 is the Australian variant of the NH90 helicopter intended to modernize the Australian Defence Force (ADF). This new generation helicopter of 10 Ton class will provide multi-role troop lift capability in all environments by day and night. The MRH90 is capable of carrying 2 pilots, 20 fully equipped combat troops up to 900 km at speeds of up to 300 km/h. Its flexibility allows its users to perform additional missions such as internal/external load transport, Heliborne operations, Search and Rescue, Casualties evacuation and Training missions. The NH90 is the most modern helicopter of its class.
    [Show full text]
  • Mobile Helicopter Engine Test Facility for the Agustawestland AW101 & Apache & Nhindustries NH90
    AERO ENGINE & COMPONENT TEST FACILITIES Mobile Helicopter Engine Test Facility For the AgustaWestland AW101 & Apache & NHIndustries NH90 The Test Facility provides the following advantages: • Proves the quality of the power plant. • Quickly deployable using any suitable ‘towing-tug’. • Compact, lightweight and fully mobile • Simple design and construction • Air transportable – by C130 or C17 transport • Can be configured to accept a variety of engine types • The facility operators will benefit from the cabins enhanced acoustics, console ergonomics and integrated air-conditioning ATL 1295-001: RTM322 and T700 engine variant Run-up facility system. As part of integrated logistics support, this advanced compact • One self-contained facility catering for multiple aircraft platforms. Mobile Test Facility offers the end user deep field servicing support • Prevents the aircraft being used as an expensive test facility, thus for helicopter engines. increases aircraft availability. This design of facility is versatile, user friendly, safe, efficient and • CE certified to meet current legislation and EU directives. cost effective and provides a testing solution for the EH101/ Merlin, Test Trailer includes the following: NH90 and Apache Helicopter platform variants. • Suitably sized wheelbase test trailer, turntable steering, The Mobile Engine Test Facility is designed to be configured for the adjustable tow-arm equipped with NATO standard towing eye, RTM322, with testing solution options for the T700 engine variants brake system and foam filled tyres. as well. • Access steps with stainless steel handrails. The Test Facility comprises of the following key elements • Powerplants are installed onto a stainless steel mounting and systems: frame inclusive of intake guard to prevent FOD hazards, which • Mobile Test trailer which acts as the main facility platform.
    [Show full text]
  • The NH90 Helicopter Development Wind Tunnel Programme
    Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR NLR TP 97631 The NH90 helicopter development wind tunnel programme C. Hermans, J. Hakkaart, G. Panosetti, G. Preatoni, V. Mikulla, F. Chéry, C. Serr DOCUMENT CONTROL SHEET ORIGINATOR'S REF. SECURITY CLASS. TP 97631 U Unclassified ORIGINATOR National Aerospace Laboratory NLR, Amsterdam, The Netherlands TITLE The NH90 helicopter development wind tunnel programme PRESENTED AT the Conferederation of European Aerospace Societies Conference on Wind Tunnels and Wind Tunnel Test Techniques, Cambridge (UK), April 14-16, 1997. AUTHORS DATE pp ref C. Hermans, J. Hakkaart, G. Panosetti, 971211 16 G. Preatoni, V. Mikulla, F. Chéry, C. Serr DESCRIPTORS Aerodynamic drag Helicopter tail rotors Scale models Aerodynamics Infrared signatures Wind tunnels tests Air intakes Lifting rotors Engine inlets Measuring instruments Exhaust gases Military helicopters Flight mechanics Models Helicopter design Powered models ABSTRACT In the framework of the Design & Development (D&D) phase of the NH90 helicopter programme,a wind tunnel test programme is carried out using various subscale models to determine the aerodynamic behaviour of the vehicle. The NH90 helicopter is being developed in a co-operative programme by four European nations: France, Germany, Italy and The Netherlands. Approximately 1900 hours of wind tunnel tests have been conducted since 1987 in the Netherlands (Low Speed wind Tunnel LST and German Dutch Wind tunnel DNW) and in France (Eurocopter France ECF low speed wind tunnel). Execution of these wind tunnel tests was a substantial contribution to the development risk reduction effort performed for the multinational NH90 helicopter programme. One of the test activities performed in the D&D phase of the NH90 programme included testing a scale 1:4 model equipped with a powered main rotor in the German-Dutch Wind DNW.
    [Show full text]
  • TWO PRODUCTION Nh90s FIRST FLIGHT THE
    NH90 HELICOPTER RESUMES FLIGHTS TRIALS Aix-en-Provence, 24 June 1996. The NH90 (maiden flight 18 December 95) after the scheduled inspection and ground test activity is resuming the intensive flight trials. The first prototype of NH90 helicopter (PT1) logged 35 flight hours. Preliminary evaluation flights have been already performed by the Test Pilots and Flight Engineers of the Armed Forces of France, Italy and Germany. NHIndustries, the prime contractor for the quadrinational NH90 helicopter Programme (launched by France, Italy, Germany and The Netherlands) is pleased to say that the comments arised from these “Customer” evaluation are highly positive. They have been favourably impressed by the overall manoeuvrability of the NH90, by its response damping, by its directional stability, by its vibration and noise level, by its overall performances and especially by the low pilot workload requested. Development activities are carried out by the four European industrial partners, Eurocopter Deutschland GmbH, Eurocopter France S.A., Agusta S.p.A (Italy), and Fokker (The Netherlands) according to the design responsibility defined in the contract signed by NHIndustries and NAHEMA, the NATO Agency representing the Four Participating Nations. During the NH90 Development phase, a total of 5 prototypes, plus the Ground Test Vehicle (Iron Bird) will be employed to demonstrate design compliance and to validate overall system performance. Qualification is further supported by a number of laboratory and ground tests, simulators and integration facilities. Needs for replacement of existing fleets, for tactical transport and naval missions, are playing a major role in the NH90 both in the Four Participating Nations and in the Export market.
    [Show full text]
  • Applying Experientialism to HCI Methods
    Applying Experientialism to HCI Methods by Manuel Imaz A thesis submitted in partial fulfillment of the requirements of Napier University for the degree of Doctor of Philosophy SCHOOL OF COMPUTING NAPIER UNIVERSITY EDINBURGH, UK Committee in charge: Professor David Benyon, Chair Professor Chris Johnson Professor John Waterworth January 2001 Acknowledgements I would like to thank Dr. David Benyon, who first discovered the possibility of a PhD thesis in the seeds of a MSc thesis done at the Open University, and also because he Smyth for supported me along the entire source-path-goal trajectory and to Michael Nardi for her his revision and valuable comments. I would also like to thank Bonnie John exchange of comments regarding my original ideas about Activity Theory, and Waterworth for his contributions regarding the role of metaphor in HCI design. Their contribution has been very important in the development of my own ideas. Table of Contents Table Contents I of ............................................................................................................ Table Figures; of .............................................................................................................6 Abstract ...........................................................................................................................8 Chapter 1 ................................................................. ...................................................9 Introduction..... ......................................................................
    [Show full text]