1. CLIPPED WINGS The History of Aborted Aircraft Prototypes By David R Townend AeroFile

2. INTRODUCTION This book is designed to explore 85 aircraft prototypes that have failed to go into production from 1945 until present day. It is a chronicle of these aircraft, and explores the development of the aircraft, their histories and the reasons for their demise. The book is arranged by aircraft role, and features aircraft of the following types: Fighters; Bombers; Airliners; Jet Flying Boats; VTOL; Helicopters; Flying Wings; Mixed-Power Interceptors; Un-Winning Competitors; and Developments. In addition, two Appendices are included at the end of the work – one dealing with aircraft projects that went as far as the mock-up stage, but were not built, and another detailing the aircraft included in the book that are preserved today. Click to investigate further.

3. INTRODUCTION Clipped Wings – The History of Abortive Aircraft Prototypes arranges each of the aircraft chronologically within the sections by the first flight date of each aircraft. Each aircraft listing features the following sections: History; Summary; Disposition and Specifications. The History section is the main body of the listing, and details the aircraft’s development from its inception and design, the contracts (if any) and up through the building of the prototype(s) and the first flight. The details of the flight testing is also described here, and the events that led to the aircraft’s cancellation. In the Summary section, the reasons for the aircraft's cancellation are described in more detail and theories are also put forth. This section may also describe the aircraft’s designations and/or names, as well as any related technology or other aircraft that were the result of the featured aircraft’s development. The next section is Disposition, and this details the aircraft’s history after cancellation. Each aircraft that was built – or, in some cases, almost completed – is chronicled, and its final whereabouts (if known) is displayed. This section also details each of the aircraft’s serial numbers and/or constructor numbers, where known. The final section is Specifications. Here, the aircraft’s dimensions, powerplant, crew, passengers (if any), armament (if any) and performance are listed. As a standard, imperial measurements are used throughout. Where multiple types of aircraft were built, the designation and type is listed, as is the particular aircraft listed. Click to investigate further.

4. CONTENTS FIGHTERS McDonnell XF-85 Goblin Douglas A2D-1 Skyshark Grumman XF10F-1 Jaguar Avro Canada CF-105 Arrow Sukhoi T-4 Israel Aircraft Industries Lavi BOMBERS Douglas XB-42 Mixmaster & XB-43 Martin XB-51 Tupolev Tu-80 & Tu-85 Short S.A.4 Sperrin Tupolev Tu-91 “Boot” Tupolev Tu-98 “Backfin” Myasishchyev M-50 “Bounder” North American XB-70 Valkyrie BAC TSR.2 AIRLINERS Avro Canada C102 Jetliner Bristol Brabazon Saunders-Roe SR.45 Princess Fairey Rotodyne JET FLYING BOATS Saunders-Roe SR.A/1 Beriev R-1 Convair F2Y-1 Sea Dart Martin P6M SeaMaster Beriev Be-10 “Mallow” VTOL Lockheed XFV-1 Salmon Convair XFY-1 Pogo LTV-Hiller-Ryan XC-142A Canadair CL-84 Dynavert Dornier Do 31 VFW-Fokker VAK 191B HELICOPTERS McDonnell XHJD-1 Whirlaway Cierva W.11 Air Horse Hughes XH-17 Piasecki YH-16 Transporter Westland Westminster Kamov Ka-22 Vintokryl Bell 207 Sioux Scout Lockheed AH-56A Cheyenne Mil Mi-12 (V-12) “Homer” Sikorsky S-67 Blackhawk Boeing-Sikorsky RAH-66 Comanche

5. CONTENTS

6. FLYING WINGS CanCar-Burnelli CBY-3 Loadmaster Northrop XP-79 Northrop XB-35 & YB-49 Vought XF5U-1 “Flying Pancake” MIXED-POWER INTERCEPTORS Convair XP-81 Curtiss XF15C-1 Republic XF-91 Thunderceptor Sud-Ouest SO.9000 Trident & SO.9050 Trident II Sud-Aviation SE.212 Durandal Saunders-Roe SR.53 UN-WINNING COMPETITORS Convair XB-46 Martin XB-48 Curtiss XF-87 Blackhawk Lockheed XF-90 North American YF-93A Convair YB-60 Northrop YA-9 Northrop YF-17 Cobra Boeing-Vertol YUH-61A Bell YAH-63 Boeing YC-14 & McDonnell Douglas YC-15 Northrop-McDonnell Douglas YF-23 Black Widow II Boeing X-32

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8. DEVELOPMENTS Bell XP-83 Ryan XF2R-1 Dark Shark Blackburn Y.A.1 Firecrest Convair XC-99 Fairchild XC-120 Pack-Plane Republic XF-84H Thunderscreech Douglas F5D-1 Skylancer North American YF-107A Vought XF8U-3 Crusader III Lockheed YF-12A Mikoyan MiG-21PD & 23-01 Sukhoi T-58VD Dassault Mirage G8 Bell 309 Kingcobra General Dynamics F-16XL Northrop F-20A Tigershark

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10. CREDITS Clipped Wings The History of Aborted Aircraft Prototypes By David R Townend Published by AeroFile Publications 101 Mercer Cres Markham, Ontario © 2007 ISBN 978-0-9732020-4-5 Soft Cover, 300 Pages, 100 B&W photos Research: Allan Janus, Archives Reference Desk, National Air and Space Museum, Washington D.C.; Terry Aitkin, Senior Curator at the National Museum of the United States Air Force, Dayton, Ohio; Steve Maxham, Director of the United States Army Aviation Museum, Fort Rucker, Alabama; David Payne, General Manger of the Quonset Air Museum, Rhode Island; Stan Piet, Archive Director, Glenn L Martin Maryland Aviation Museum; James Floyd (Avro Canada); Nes Dobson (CanCar) Binding by Print Options