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A Brief Review on Electromagnetic Aircraft Launch System
International Journal of Mechanical And Production Engineering, ISSN: 2320-2092, Volume- 5, Issue-6, Jun.-2017 http://iraj.in A BRIEF REVIEW ON ELECTROMAGNETIC AIRCRAFT LAUNCH SYSTEM 1AZEEM SINGH KAHLON, 2TAAVISHE GUPTA, 3POOJA DAHIYA, 4SUDHIR KUMAR CHATURVEDI Department of Aerospace Engineering, University of Petroleum and Energy Studies, Dehradun, India E-mail: [email protected] Abstract - This paper describes the basic design, advantages and disadvantages of an Electromagnetic Aircraft Launch System (EMALS) for aircraft carriers of the future along with a brief comparison with traditional launch mechanisms. The purpose of the paper is to analyze the feasibility of EMALS for the next generation indigenous aircraft carrier INS Vishal. I. INTRODUCTION maneuvering. Depending on the thrust produced by the engines and weight of aircraft the length of the India has a central and strategic location in the Indian runway varies widely for different aircraft. Normal Ocean. It shares the longest coastline of 7500 runways are designed so as to accommodate the kilometers amongst other nations sharing the Indian launch for such deviation in takeoff lengths, but the Ocean. India's 80% trade is via sea routes passing scenario is different when it comes to aircraft carriers. through the Indian Ocean and 85% of its oil and gas Launch of an aircraft from a mobile platform always are imported through sea routes. Indian Ocean also requires additional systems and methods to assist the serves as the locus of important international Sea launch because the runway has to be scaled down, Lines Of Communication (SLOCs) . Development of which is only about 300 feet as compared to 5,000- India’s political structure, industrial and commercial 6,000 feet required for normal aircraft to takeoff from growth has no meaning until its shores are protected. -
Aircraft Carrier Operating Procedures
This document belongs to “Speed & Angels” and shall not be reproduced. Created by: DCS-Sn@k3Sh!t for educational and training purposes only. Aircraft Carrier Operating Procedures This work is licensed under a Creative Commons Attribution- ShareAlike 4.0 International License. For DCS World 2.5 Revision 01 © Copyright Act R.S.C. 1985 c. C-42. This document belongs to “Speed & Angels” and shall not be reproduced. Foreword: Created by: DCS-Sn@k3Sh!t for educational and training purposes only. The goal of every Naval Officer who is selected for jet pilot training is to become a tactical carrier pilot. Carrier pilots are the best because they must be the best. The carrier environment will not tolerate anything less. Landing and launching aircraft as well as moving equipment and personnel in a relatively small area requires precise coordination for safe operation. Handling aircraft on a flight deck is more complicated than at a field due to the high winds across the deck, small crowded deck, the proximity of the deck edge and the ship's movement. Successful and safe operations in and around the carrier depend on a coordinated team effort in which all team members do their job properly. There is no excuse for not knowing and not using correct procedures around the ship and there are no exceptions to this rule. This manual is written with the intent to achieve the highest possible standard of “Carrier Operations” within DCS World. After studying this manual, you should be able to operate safely and expeditiously on and in proximity of the carrier. -
Mk 7 Aircraft Recovery Equipment
CHAPTER 3 MK 7 AIRCRAFT RECOVERY EQUIPMENT Present-day aircraft normally require the use of then opened, allowing fluid to be forced from the runways that are 5,000 to 8,000 feet long in order to accumulator back into the engine cylinder, forcing the land ashore. On an aircraft carrier, these same aircraft ram out. As the ram moves out of the cylinder, the are stopped within 350 feet after contacting the deck. crosshead is forced away from the fixed sheave This feat is accomplished through the use of aircraft assembly, pulling the purchase cables back onto the recovery equipment, including an emergency barricade engine until the crosshead is returned to its BATTERY that brings a landing aircraft to a controlled stop by position and the crossdeck pendant is in its normal absorbing and dispelling the energy developed by the position on the flight deck. landing aircraft. This recovery equipment is commonly called arresting gear. PRERECOVERY PREPARATIONS The sole purpose of an aircraft carrier is to provide Prior to recovery of aircraft, all recovery equipment a means of launching a strike against an enemy and landing area must be made ready and all personnel anywhere in the world. After the aircraft complete their properly positioned. The following is a general listing mission, the carrier must provide a means of safely of the events that must be accomplished prior to the recovering them. The Mk 7 arresting gear provides this recovery of aircraft: means. • All operational retractable sheaves raised to the full up position AIRCRAFT RECOVERY • LEARNING OBJECTIVE: Describe aircraft All aft deckedge antennas positioned, as arrestments aboard aircraft carriers. -
Navy News Week 10-2
NAVY NEWS WEEK 10-2 5 March 2018 Winter in the Frisia for Culdrose Sea King on its final mission over Europe 22/02/2018 For the last time a Royal Navy Sea King has appeared in European skies after completing its final mission on the Continent. For two weeks, a helicopter from 849 Naval Air Squadron at Culdrose has been directing the actions of supersonic F-16 jets over the North Sea and northern Holland – a key stepping stone for working with the UK’s new F-35 stealth fighters in a couple of years time. It’s the task of 849 with their distinctive radar-equipped helicopters to scour the skies for threats to a naval group – and to direct interceptors such as the F-16 Falcons in for the kill if necessary. It took the veteran helicopter eight hours to cover the 500 miles from its base in western Cornwall to Leeuwarden in Frisia, north-eastern Netherlands. A 40-strong detachment of air and ground crew was dispatched to the Dutch Air Force Base for Exercise Skinners’ Gold 4 – an exercise the squadron has attended in previous run-outs. The Sea King Mk7 flew eight night missions with its observer/radar operator in the back of the helicopter choreographing the movements of up to four Dutch jets at a time either using voice commands (English is the common language of the skies) or by using the military’s data-sharing system, Link 16. The Brits guided their Dutch colleagues to intercept up to half a dozen ‘enemy’ jets at a time – which proved to be an invaluable training for 849, particularly as the scenarios played out over Dutch and North Sea skies could not to be recreated back in the UK. -
Aircraft Carriers – Glug Glug Glug….. Really? Significance of Carrier Borne Airpower for India
www.maritimeindia.org Aircraft Carriers – Glug Glug Glug….. Really? Significance of Carrier Borne Airpower for India Author: Dinesh Yadav Date: 23 July 2018 In his recent article published by the Lowy Institute, titled “Glug, Glug, Glug: India’s interest in unsinkable Aircraft Carriers”, David Brewster1, probes India’s medium term plan to develop into a three carrier fleet. Brewster cites huge costs (acquisition, maintenance and operational) and vulnerability issues attached with the Carrier Task Force (CTFs) in support of his assertion and, as an alternative, advocates the use of ‘unsinkable’ island bases as cheaper and more effective options. Dismissing flat-tops as vulnerable status symbols for India, the author recommends the deferment of INS Vishal and instead, use the freed-up capital in shoring up India’s military capabilities in the Andaman and Nicobar (A&N) and Lakshadweep island chains. India currently operates only one carrier, INS Vikramaditya (erstwhile Admiral Gorshkov of the Soviet/ Russian Navy). Whilst India’s first indigenous aircraft carrier, INS Vikrant (IAC-I) is being built by Cochin Shipyard (CSL) and is likely to be commissioned in end 20202, India has already embarked on its follow-on induction3, likely to be named as INS Vishal (IAC-II), and expected to be much larger and more potent. A three-carrier force would allow the Indian Navy to operate one CTF on each of its seaboard at all times, with the third carrier involved in refit or maintenance. Bang for Buck – Misplaced Example of Great Britain The Royal Navy currently operates4 only one Aircraft Carrier, HMS Queen Elizabeth (commissioned in December 2017). -
A Pilgrimage to the Sea
DOI 10.22491/1809-3191.v24n1.p40-67 INDIA’S OCEANOPOLITICS: A PILGRIMAGE TO THE SEA Rafael Regiani1 ABSTRACT The increasing dependence of sea-imported oil, as well as the increasing presence of China in the Indian Ocean region, led India to also focus its attention on the sea. This interest became clearer in the diplomatic initiative called Sagar Yatra. India’s rise in the Indian Ocean seems like a natural destiny due to the prominent position of the Hindustanic Peninsula in the basin and its rich maritime history built in Antiquity. This rich sea trade network fueled by the monsoon system is recovered now by the Mausam Project. This paper analyses the oceanopolitics of the Modi government. The theoretical framework is provided by historian K. M. Panikkar. As source, we used all available and reachable material, such as books, journals, or websites. Keywords: India. Indian Ocean. Sagar Yatra. Mausam Project. 1 Mestrando. Pesquisador na Universidade de São Paulo (USP), São Paulo - SP, Brasil. E-mail: [email protected] R. Esc. Guerra Nav., Rio de Janeiro, v. 24, n.1 , p. 40-67. jan./abril. 2018. Rafael Regiani 41 “The Indian Ocean region is one of my main political priorities. Our approach is evident in our ‘Sagar’ view, which means ‘ocean’ and represents security and growth for all in the region. We will continue to pursue and promote our geopolitical, strategic, and economic interests in the seas, especially in the Indian Ocean” – Narendra Modi INTRODUCTION The Indian Ocean is of paramount importance to the global economic system, since in a portion of its waters lies the Persian Gulf, the main world oil region, and through the Arabian Sea much of this oil production is sold to the European and American markets. -
Dodig-2016-107 for Official Use Only
Report No. DODIG-2016-107 FOR OFFICIAL USE ONLY U.S. Department of Defense InspectorJULY 5, 2016 General Advanced Arresting Gear Program Exceeded Cost and Schedule Baselines INTEGRITY EFFICIENCY ACCOUNTABILITY EXCELLENCE The document contains information that may be exempt from mandatory disclosure under the Freedom of Information Act. FOR OFFICIAL USE ONLY FOR OFFICIAL USE ONLY INTEGRITY EFFICIENCY ACCOUNTABILITY EXCELLENCE Mission Our mission is to provide independent, relevant, and timely oversight of the Department of Defense that supports the warfighter; promotes accountability, integrity, and efficiency; advises the Secretary of Defense and Congress; and informs the public. Vision Our vision is to be a model oversight organization in the Federal Government by leading change, speaking truth, and promoting excellence—a diverse organization, working together as one professional team, recognized as leaders in our field. Fraud, Waste, & Abuse HOTLINE Department of Defense dodig.mil/hotline|800.424.9098 For more information about whistleblower protection, please see the inside back cover. FOR OFFICIAL USE ONLY FOR OFFICIAL USE ONLY Advanced Arresting Gear Program Exceeded Cost Resultsand Schedule Baselinesin Brief July 5, 2016 Finding (cont’d) Objective As a result, major AAG system components required costly redesign, which delayed developmental testing and will Our objective was to determine whether further postpone delivery of the full AAG system capability the Navy was effectively managing the to the CVN-78 aircraft carrier. AAG hardware and software acquisition requirements and testing for the component failures and test site preparation led to the AAG Advanced Arresting Gear (AAG) program. program exceeding the Acquisition Category I threshold The arresting gear is the system responsible for Research, Development, Test, and Evaluation (RDT&E) for stopping aircraft while landing on the costs. -
Vpa Report 2002-12-05
UNCLASSIFIED NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION PATUXENT RIVER, MARYLAND TECHNICAL REPORT REPORT NO: NAWCADPAX/TR-2002/71 REVIEW OF THE CARRIER APPROACH CRITERIA FOR CARRIER-BASED AIRCRAFT PHASE I; FINAL REPORT by Thomas Rudowsky Stephen Cook Marshall Hynes Robert Heffley Melvin Luter Thomas Lawrence CAPT Robert Niewoehner Douglas Bollman Page Senn Dr. Wayne Durham Henry Beaufrere Michael Yokell Albert Sonntag Approved for public release; distribution is unlimited. UNCLASSIFIED DEPARTMENT OF THE NAVY NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION PATUXENT RIVER, MARYLAND NAWCADPAX/TR-2002/71 REVIEW OF THE CARRIER APPROACH CRITERIA FOR CARRIER-BASED AIRCRAFT - PHASE I; FINAL REPORT by Thomas Rudowsky Stephen Cook Marshall Hynes Robert Heffley Melvin Luter Thomas Lawrence CAPT Robert Niewoehner Douglas Bollman Page Senn Dr. Wayne Durham Henry Beaufrere Michael Yokell Albert Sonntag NAWCADPAX/TR-2002/71 REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. -
Carrier Deck Launching of Adapted Land-Based Airplanes
DOI: 10.13009/EUCASS2017-275 7TH EUROPEAN CONFERENCE FOR AERONAUTICS AND SPACE SCIENCES (EUCASS) Carrier deck launching of adapted land-based airplanes HERNANDO, José-Luis and MARTINEZ-VAL, Rodrigo Department of Aircraft and Spacecraft School of Aerospace Engineering Universidad Politécnica de Madrid 28040Madrid, Spain [email protected]; [email protected] Abstract Harrier VTOL is the basic combat airplane for many Navies, but it will soon be retired from service. Three main alternatives appear: to incorporate another, already existing or under development airplane; to design a completely new aircraft; or to modify an existing land-based airplane for carrier suitability. The present paper is part of a study to assess the feasibility of the third option. In former papers the authors have addressed the compatibility of land-based airplanes with aircraft carriers and the details of the carrier approach guidance and recovery; and showed some major modifications required in wing structure and landing gear. The research proposed here studies the airplane performance during the launching manoeuvre, formed by a take-off run on the flat deck followed by a ski-jump. 1. Introduction Along its 100 years of existence naval aviation has progressed astonishingly, but it is still one of the most demanding environments for airplane operations: extremely short, moving runways; flight in rough air generated by the vessel’s superstructure wake and from the sea surface; etc [1-3]. Modern aircraft carriers are classified into three categories: vessels designed to operate only with thrust vectoring airplanes; ships designed for short take-off and arrested recovery (STOBAR); and carriers equipped with catapults and arresting devices (CATOBAR). -
Dynamic Analysis and Security Characteristics of Carrier-Based Aircraft Arresting in Yaw Condition
applied sciences Article Dynamic Analysis and Security Characteristics of Carrier-Based Aircraft Arresting in Yaw Condition Yiming Peng 1, Pengpeng Xie 2, Xiaohui Wei 1,* and Hong Nie 1,* 1 State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; [email protected] 2 Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; [email protected] * Correspondence: [email protected] (X.W.); [email protected] (H.N.) Received: 22 January 2020; Accepted: 5 February 2020; Published: 13 February 2020 Abstract: In order to research the safety characteristics of carrier-based aircraft in yaw arrest, a complete dynamic model of the arresting system of a certain type of aircraft was developed to understand more about its dynamic properties. Based on the discrete kink-wave model, a simulation of centering arrest was conducted. The simulation results were compared with experimental data from the United States (US) military standards, demonstrating that the basic changing laws are almost the same. On the basis of centering arrest, a simulation of yaw arrest was carried out. The results show that in yaw state, the difference in the lengths of the arresting cables on either side of the hook is smaller in the early stage after the hook hangs on the rope, which leads to little influence on load fluctuation produced by the kink-wave. With the increase in arresting distance, the difference in the lengths of the arresting cables on either side becomes larger, resulting in a situation in which the cable tension on the departure side will gradually become greater than that on the opposite side. -
Delay in IAC-1'S Commissioning Could Diminish India's Maritime
October - November 2020 | Vol VIII | Issue 2 LAND, NAVAL & HOMELAND SECURITY MAGAZINE Indian Army’s Modernization on the Right Track Indian Navy: Charting a New Course Russian Armored Vehicles Remain Steadily Strong in World Market In association with Delay in IAC-1’s Commissioning Could Diminish India’s Maritime Prowess - Page No : 06 General Manoj Mukund Naravane Admiral Karambir Singh Alexander Mikheev PVSM, AVSM, SM, VSM, ADC PVSM, AVSM, ADC Director General Chief of Indian Army Chief of Indian Navy Rosoboronexport MEDIA PARTNER AERO INDIA 2021 February Contact : [email protected] 03 - 07, `21 [email protected] yelahanka +91 9448447509 |+91 9480551925 air Force Station, 91-80-43747492 bangalore www.aeroindia.gov.in Advertise with AEROMAG Show Dailies & Special Issue Editorial Positive Developments for India’s Defence Industry The Indian Government has released the Defence Acquisition Procedure (DAP)-2020, which incorporates a slew of proposals aimed at achieving the vision of ‘Atmanirbhar Bharat’ programme and empowering Indian industry through the ‘Make in India’ Regional Representatives initiative. DAP-2020 seeks to bring about reforms in Indian defence industry and turn the country into a global manufacturing hub. Berlin, Germany This is imperative for meeting the target set by Prime Minister Narendra Modi Detlef Becker for India to export defence equipment worth Rs 35,000 crore (US Dollars 5 billion) E : [email protected] by 2025. According to the draft Defence Production Export Promotion Policy-2020 T : + 497 112317595 released by the Ministry of Defence, the government is eyeing a turnover of Rs M : + 491 701626053 1.75 lakh crore (US Dollars 25 billion) in defence manufacturing by 2025. -
Research Article Modeling and Simulation of Arresting Gear System with Multibody Dynamic Approach
Hindawi Publishing Corporation Mathematical Problems in Engineering Volume 2013, Article ID 867012, 12 pages http://dx.doi.org/10.1155/2013/867012 Research Article Modeling and Simulation of Arresting Gear System with Multibody Dynamic Approach Wenhou Shen,1,2 Zhihua Zhao,1 Gexue Ren,1 and Jiapeng Liu1 1 Tsinghua University, Beijing 100084, China 2 Naval Aviation Institute, Huludao 125001, China Correspondence should be addressed to Wenhou Shen; [email protected] Received 17 July 2013; Revised 19 September 2013; Accepted 19 September 2013 Academic Editor: Song Cen Copyright © 2013 Wenhou Shen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The arresting dynamics of the aircraft on the aircraft carrier involves both a transient wave propagation process in rope and a smooth decelerating of aircraft. This brings great challenge on simulating the whole process since the former one needs small time-step to guarantee the stability, while the later needs large time-step to reduce calculation time. To solve this problem, this paper proposes a full-scale multibody dynamics model of arresting gear system making use of variable time-step integration scheme. Especially, a kind of new cable element that is capable of describing the arbitrary large displacement and rotation in three-dimensional space is adopted to mesh the wire cables, and damping force is used to model the effect of hydraulic system. Then, the stress of the wire ropes during the landing process is studied. Results show that propagation, reflection, and superposition of the stress wave between the deck sheaves contribute mainly to the peak value of stress.