List of cancelled military projects

This is a list of cancelled military projects.

This list is incomplete; you can help by expanding it.

Argentina

Fuerza Aérea Argentina

• FMA SAIA 90
• FMA IA-67 Cordoba
• FMA IAe 33 Pulqui II
• FMA I.Ae. 27 Pulquí

Australia

Australian Army

• Armtech C30R
• Leader Dynamics Series T2 MK5

Royal Australian Navy

• Australian light destroyer project
• SH-2G(A) Super Sea Spite

Brazil

Exército Brasiliero

• EE-T1 Osório

Canada

Pre-Unification

Canadian Army

• Bobcat (armoured personnel carrier) (1952–1963)

Royal Canadian Air Force

Fighters

• Avro Canada CF-103 (1950–1951)
• Avro Canada CF-105 Arrow (1953–1959)

Missiles

• Velvet Glove AAM (1953–1956)

Royal Canadian Navy

Bras d'Or class (1960–1971)

Canadian Forces

Land Forces

• Multi-Mission Effects Vehicle (2005–2007)

Czech Republic

Vzdušné síly Armády

• Aero A.24

Germany

Bundeswehr

German Air Force

• EWR VJ 101
• VFW VAK 191B
• MBB Lampyridae

Israel

Israel Defense Forces

Aviation

• IAI Lavi
• IAI Nammer

Poland

Polish Air Force

• PZL-230 Skorpion

Polish Navy

• Gawron-class corvette*

Russia

Russian Ground Forces

• Object 640

Russian Air Forces

• MiG 1.44

United Kingdom

British Army

• BSA Welgun
• Elkins Automatic Rifle
• EM-2 rifle
• Farquhar-Hill rifle
• FN FAL Bullpup .280
• Howard Francis machine carbine
• L64/65
• Sterling SAR-87

Royal Air Force

• Armstrong Whitworth AW.681
• Avro 730
• BAC TSR-2
• British Aerospace Nimrod AEW.3
• British Aerospace P.125
• Hawker Siddeley P.1154
• Vickers Type 559

Royal Navy

• CVA-01
• Hawker Siddeley P.139B
• Lion class battleship
• Malta class aircraft carrier
• Type 43 destroyer
• Type 82 destroyer

United States

United States Army Air Corps

Bombers

• Huff-Daland XB-1
• Douglas Y1B-7
• Fokker XB-8
• Boeing Y1B-9
• Douglas YB-11
• Martin XB-13
• Martin XB-14
• Boeing XB-15
• Martin XB-16
• Douglas XB-19
• Boeing Y1B-20
• North American XB-21
• Douglas XB-22
• Martin XB-27
• North American XB-28

Fighters

• Douglas XP-48
• Lockheed XP-49
• Grumman XP-50

United States Army Air Forces

Bombers

• Lockheed XB-30
• Douglas XB-31
• Consolidated B-32 Dominator
• XB-33 Super Marauder
• Boeing YB-40 Flying Fortress Gunship
• Consolidated XB-41 Liberator Gunship

Fighters

• Vultee XP-54
• Curtiss XP-55 Ascender
• Northrop XP-56 Black Bullet
• Lockheed XP-58 Chain Lightning
• Lockheed L-133 Starjet
• Bell P-59 Airacomet
• Curtiss XP-62
• McDonnell XP-67 Bat
• Republic XP-72
• Fisher (General Motors) P-75 Eagle
• Bell XP-76
• Northrop XP-79
• Convair XP-81
• Bell XP-83

United States Air Force

Bombers

• XB-35
• YB-49
• XB-70 Valkyrie
• B-1A

Fighters

• Northrop YA-9
• Lockheed YF-12
• Republic XF-103
• North American F-107
• XF-108 Rapier
• Bell XF-109
• Northrop F-20 Tigershark
• Northrop YF-23

United States Navy/United States Marine Corps

• Advanced Integrated Electronic Warfare System
• Railguns
• Electronic laser

Attack Aircraft

• Douglas A2D Skyshark
• North American A2J Super Savage
• McDonnell Douglas A-12 Avenger II

Fighters

• Grumman XF5F Skyrocket
• Goodyear F2G
• Douglas F6D Missileer
• Grumman XF10F Jaguar
• General Dynamics F-111B
• Convair F2Y Sea Dart

Rotorcraft

• Lockheed Martin VH-71 Kestrel

Ships

• CG(X)
• Lexington-class battlecruiser
• Montana-class battleship
• Sea Control Ship
• Strike Cruiser
• South Dakota-class battleship
• USS United States (CVA-58)

United States Army

Small arms

• Model 45A
• Gyrojet Assault Rifle
• Olin/Winchester Salvo Rifle
• Thompson Carbine
• Heckler & Koch XM8
• Heckler & Koch XM29 OICW
• Heckler & Koch HK CAWS
• Special Purpose Individual Weapon
• Heckler & Koch G11

Armor

• MBT-70

Artillery

• XM2001 Crusader
• M247 Sergeant York

Aviation

• AH-56 Cheyenne
• Boeing Vertol YUH-61
• Boeing Vertol XCH-62
• RAH-66 Comanche
• Bell ARH-70

United States Department of Defense

• Project Camelot