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China's Aircraft Carrier Ambitions
CHINA’S AIRCRAFT CARRIER AMBITIONS An Update Nan Li and Christopher Weuve his article will address two major analytical questions. First, what are the T necessary and suffi cient conditions for China to acquire aircraft carriers? Second, what are the major implications if China does acquire aircraft carriers? Existing analyses on China’s aircraft carrier ambitions are quite insightful but also somewhat inadequate and must therefore be updated. Some, for instance, argue that with the advent of the Taiwan issue as China’s top threat priority by late 1996 and the retirement of Liu Huaqing as vice chair of China’s Central Military Commission (CMC) in 1997, aircraft carriers are no longer considered vital.1 In that view, China does not require aircraft carriers to capture sea and air superiority in a war over Taiwan, and China’s most powerful carrier proponent (Liu) can no longer infl uence relevant decision making. Other scholars suggest that China may well acquire small-deck aviation platforms, such as helicopter carriers, to fulfi ll secondary security missions. These missions include naval di- plomacy, humanitarian assistance, disaster relief, and antisubmarine warfare.2 The present authors conclude, however, that China’s aircraft carrier ambitions may be larger than the current literature has predicted. Moreover, the major implications of China’s acquiring aircraft carriers may need to be explored more carefully in order to inform appropriate reactions on the part of the United States and other Asia-Pacifi c naval powers. This article updates major changes in the four major conditions that are necessary and would be largely suffi cient for China to acquire aircraft carriers: leadership endorsement, fi nancial affordability, a relatively concise naval strat- egy that defi nes the missions of carrier operations, and availability of requisite 14 NAVAL WAR COLLEGE REVIEW technologies. -
The SKYLON Spaceplane
The SKYLON Spaceplane Borg K.⇤ and Matula E.⇤ University of Colorado, Boulder, CO, 80309, USA This report outlines the major technical aspects of the SKYLON spaceplane as a final project for the ASEN 5053 class. The SKYLON spaceplane is designed as a single stage to orbit vehicle capable of lifting 15 mT to LEO from a 5.5 km runway and returning to land at the same location. It is powered by a unique engine design that combines an air- breathing and rocket mode into a single engine. This is achieved through the use of a novel lightweight heat exchanger that has been demonstrated on a reduced scale. The program has received funding from the UK government and ESA to build a full scale prototype of the engine as it’s next step. The project is technically feasible but will need to overcome some manufacturing issues and high start-up costs. This report is not intended for publication or commercial use. Nomenclature SSTO Single Stage To Orbit REL Reaction Engines Ltd UK United Kingdom LEO Low Earth Orbit SABRE Synergetic Air-Breathing Rocket Engine SOMA SKYLON Orbital Maneuvering Assembly HOTOL Horizontal Take-O↵and Landing NASP National Aerospace Program GT OW Gross Take-O↵Weight MECO Main Engine Cut-O↵ LACE Liquid Air Cooled Engine RCS Reaction Control System MLI Multi-Layer Insulation mT Tonne I. Introduction The SKYLON spaceplane is a single stage to orbit concept vehicle being developed by Reaction Engines Ltd in the United Kingdom. It is designed to take o↵and land on a runway delivering 15 mT of payload into LEO, in the current D-1 configuration. -
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. -
The Chinese Navy: Expanding Capabilities, Evolving Roles
The Chinese Navy: Expanding Capabilities, Evolving Roles The Chinese Navy Expanding Capabilities, Evolving Roles Saunders, EDITED BY Yung, Swaine, PhILLIP C. SAUNderS, ChrISToPher YUNG, and Yang MIChAeL Swaine, ANd ANdreW NIeN-dzU YANG CeNTer For The STUdY oF ChINeSe MilitarY AffairS INSTITUTe For NATIoNAL STrATeGIC STUdIeS NatioNAL deFeNSe UNIverSITY COVER 4 SPINE 990-219 NDU CHINESE NAVY COVER.indd 3 COVER 1 11/29/11 12:35 PM The Chinese Navy: Expanding Capabilities, Evolving Roles 990-219 NDU CHINESE NAVY.indb 1 11/29/11 12:37 PM 990-219 NDU CHINESE NAVY.indb 2 11/29/11 12:37 PM The Chinese Navy: Expanding Capabilities, Evolving Roles Edited by Phillip C. Saunders, Christopher D. Yung, Michael Swaine, and Andrew Nien-Dzu Yang Published by National Defense University Press for the Center for the Study of Chinese Military Affairs Institute for National Strategic Studies Washington, D.C. 2011 990-219 NDU CHINESE NAVY.indb 3 11/29/11 12:37 PM Opinions, conclusions, and recommendations expressed or implied within are solely those of the contributors and do not necessarily represent the views of the U.S. Department of Defense or any other agency of the Federal Government. Cleared for public release; distribution unlimited. Chapter 5 was originally published as an article of the same title in Asian Security 5, no. 2 (2009), 144–169. Copyright © Taylor & Francis Group, LLC. Used by permission. Library of Congress Cataloging-in-Publication Data The Chinese Navy : expanding capabilities, evolving roles / edited by Phillip C. Saunders ... [et al.]. p. cm. Includes bibliographical references and index. -
Flow Visualization Studies of VTOL Aircraft Models During Hover in Ground Effect
NASA Technical Memorandum 108860 Flow Visualization Studies of VTOL Aircraft Models During Hover In Ground Effect Nikos J. Mourtos, Stephane Couillaud, and Dale Carter, San Jose State University, San Jose, California Craig Hange, Doug Wardwell, and Richard J. Margason, Ames Research Center, Moffett Field, California Janua_ 1995 National Aeronautics and Space Administration Ames Research Center Moffett Field, California 94035-1000 Flow Visualization Studies of VTOL Aircraft Models During Hover In Ground Effect NIKOS J. MOURTOS,* STEPHANE COUILLAUD,* DALE CARTER,* CRAIG HANGE, DOUG WARDWELL, AND RICHARD J. MARGASON Ames Research Center Summary fountain fluid flows along the fuselage lower surface toward the jets where it is entrained by the jet and forms a A flow visualization study of several configurations of a vortex pair as sketched in figure 1(a). The jet efflux and jet-powered vertical takeoff and landing (VTOL) model the fountain flow entrain ambient temperature air which during hover in ground effect was conducted. A surface produces a nonuniform temperature profile. This oil flow technique was used to observe the flow patterns recirculation is called near-field HGI and can cause a on the lower surfaces of the model. Wing height with rapid increase in the inlet temperature which in turn respect to fuselage and nozzle pressure ratio are seen to decreases the thrust. In addition, uneven temperature have a strong effect on the wing trailing edge flow angles. distribution can result in inlet flow distortion and cause This test was part of a program to improve the methods compressor stall. In addition, the fountain-induced vortex for predicting the hot gas ingestion (HGI) for jet-powered pair can cause a lift loss and a pitching-moment vertical/short takeoff and landing (V/STOL) aircraft. -
SKI-JUMP LIMITATIONS and PLAN's SOLUTIONS
CAPS In Focus 25 July 2017 www.capsindia.org 61/17 SKI-JUMP LIMITATIONS AND PLAN’s SOLUTIONS Arjun Subramanian P Reports on Chinese naval aviation have been in the news lately and Chinese media is abuzz with photographs of the J-15 fighters operating from the PLAN’s first carrier – the Liaoning. The carrier was en-route to Hong Kong1 along with two escort warships when the flight operations were conducted. The PLAN even released a long video of the operations which gives some insights into the J-15 fighter and the role it will play. There is also some news on China building a carrier borne AEW aircraft to be operated from its CV-001 type vessels.2 China’s lone carrier, the refurbished old Soviet vessel – Varyag – is PLAN’s first experience with an aircraft carrier which it is so actively and boastfully projecting. China is steadily improving and adding up to its naval power projection capability. The released video was of very good resolution where every minute detail was visible and which enables inference of certain information.3 The video primarily contains take-offs and landings of the J- 15 fighter with and without load-outs. In several take-offs, the J-15 can be seen carrying the PL-12 medium range and PL-8 short range air-to-air missile in the middle and outer hard-points respectively. The PL-12 is an active radar-guided BVR missile and is similar to the Russian R-77 Adder and it is widely claimed that its seeker head is the same design as that of the R-77.4 The PL-8, on the other hand, is an IR guided missile and is believed to be based on the Israeli Python-3.5 In few other launches the aircraft can be seen taking off and landing with two YJ-83K anti-ship missiles slung under the centre-wing hard-point on each wing. -
Lockheed Martin F-35 Lightning II Incorporates Many Significant Technological Enhancements Derived from Predecessor Development Programs
AIAA AVIATION Forum 10.2514/6.2018-3368 June 25-29, 2018, Atlanta, Georgia 2018 Aviation Technology, Integration, and Operations Conference F-35 Air Vehicle Technology Overview Chris Wiegand,1 Bruce A. Bullick,2 Jeffrey A. Catt,3 Jeffrey W. Hamstra,4 Greg P. Walker,5 and Steve Wurth6 Lockheed Martin Aeronautics Company, Fort Worth, TX, 76109, United States of America The Lockheed Martin F-35 Lightning II incorporates many significant technological enhancements derived from predecessor development programs. The X-35 concept demonstrator program incorporated some that were deemed critical to establish the technical credibility and readiness to enter the System Development and Demonstration (SDD) program. Key among them were the elements of the F-35B short takeoff and vertical landing propulsion system using the revolutionary shaft-driven LiftFan® system. However, due to X- 35 schedule constraints and technical risks, the incorporation of some technologies was deferred to the SDD program. This paper provides insight into several of the key air vehicle and propulsion systems technologies selected for incorporation into the F-35. It describes the transition from several highly successful technology development projects to their incorporation into the production aircraft. I. Introduction HE F-35 Lightning II is a true 5th Generation trivariant, multiservice air system. It provides outstanding fighter T class aerodynamic performance, supersonic speed, all-aspect stealth with weapons, and highly integrated and networked avionics. The F-35 aircraft -
Human Factors of Flight-Deck Checklists: the Normal Checklist
NASA Contractor Report 177549 Human Factors of Flight-Deck Checklists: The Normal Checklist Asaf Degani San Jose State University Foundation San Jose, CA Earl L. Wiener University of Miami Coral Gables, FL Prepared for Ames Research Center CONTRACT NCC2-377 May 1990 National Aeronautics and Space Administration Ames Research Center Moffett Field, California 94035-1000 CONTENTS 1. INTRODUCTION ........................................................................ 2 1.1. The Normal Checklist .................................................... 2 1.2. Objectives ...................................................................... 5 1.3. Methods ......................................................................... 5 2. THE NATURE OF CHECKLISTS............................................... 7 2.1. What is a Checklist?....................................................... 7 2.2. Checklist Devices .......................................................... 8 3. CHECKLIST CONCEPTS ......................................................... 18 3.1. “Philosophy of Use” .................................................... 18 3.2. Certification of Checklists ........................................... 22 3.3. Standardization of Checklists ...................................... 24 3.4. Two/three Pilot Cockpit ............................................... 25 4. AIRLINE MERGERS AND ACQUISITIONS .......................... 27 5. LINE OBSERVATIONS OF CHECKLIST PERFORMANCE.. 29 5.1. Initiation ...................................................................... -
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. -
The Cost of the Navy's New Frigate
OCTOBER 2020 The Cost of the Navy’s New Frigate On April 30, 2020, the Navy awarded Fincantieri Several factors support the Navy’s estimate: Marinette Marine a contract to build the Navy’s new sur- face combatant, a guided missile frigate long designated • The FFG(X) is based on a design that has been in as FFG(X).1 The contract guarantees that Fincantieri will production for many years. build the lead ship (the first ship designed for a class) and gives the Navy options to build as many as nine addi- • Little if any new technology is being developed for it. tional ships. In this report, the Congressional Budget Office examines the potential costs if the Navy exercises • The contractor is an experienced builder of small all of those options. surface combatants. • CBO estimates the cost of the 10 FFG(X) ships • An independent estimate within the Department of would be $12.3 billion in 2020 (inflation-adjusted) Defense (DoD) was lower than the Navy’s estimate. dollars, about $1.2 billion per ship, on the basis of its own weight-based cost model. That amount is Other factors suggest the Navy’s estimate is too low: 40 percent more than the Navy’s estimate. • The costs of all surface combatants since 1970, as • The Navy estimates that the 10 ships would measured per thousand tons, were higher. cost $8.7 billion in 2020 dollars, an average of $870 million per ship. • Historically the Navy has almost always underestimated the cost of the lead ship, and a more • If the Navy’s estimate turns out to be accurate, expensive lead ship generally results in higher costs the FFG(X) would be the least expensive surface for the follow-on ships. -
FROM CRADLE to GRAVE? the Place of the Aircraft
FROM CRADLE TO GRAVE? The Place of the Aircraft Carrier in Australia's post-war Defence Force Subthesis submitted for the degree of MASTER OF DEFENCE STUDIES at the University College The University of New South Wales Australian Defence Force Academy 1996 by ALLAN DU TOIT ACADEMY LIBRARy UNSW AT ADFA 437104 HMAS Melbourne, 1973. Trackers are parked to port and Skyhawks to starboard Declaration by Candidate I hereby declare that this submission is my own work and that, to the best of my knowledge and belief, it contains no material previously published or written by another person nor material which to a substantial extent has been accepted for the award of any other degree or diploma of a university or other institute of higher learning, except where due acknowledgment is made in the text of the thesis. Allan du Toit Canberra, October 1996 Ill Abstract This subthesis sets out to study the place of the aircraft carrier in Australia's post-war defence force. Few changes in naval warfare have been as all embracing as the role played by the aircraft carrier, which is, without doubt, the most impressive, and at the same time the most controversial, manifestation of sea power. From 1948 until 1983 the aircraft carrier formed a significant component of the Australian Defence Force and the place of an aircraft carrier in defence strategy and the force structure seemed relatively secure. Although cost, especially in comparison to, and in competition with, other major defence projects, was probably the major issue in the demise of the aircraft carrier and an organic fixed-wing naval air capability in the Australian Defence Force, cost alone can obscure the ftindamental reordering of Australia's defence posture and strategic thinking, which significantly contributed to the decision not to replace HMAS Melbourne.