The General Dynamics Model 100 was a 1960s proposal for a counter-insurgency (COIN) ground attack aircraft intended for use by the United States Air Force (USAF).Buttler, Tony (2010). American Secret Projects: Bombers, Attack and Anti-Submarine Aircraft 1945 to 1974. Hinckley, England: Midland Publishing. .
Development The Model 100 was conceived by General Dynamics in 1966 as a response to a USAF requirement for a COIN aircraft to replace the Douglas A-1 Skyraider. The initial design featured a turboprop-powered aircraft with straight wings and a T-tail, but a later design had a conventional tail design. Although the Model 100 was referred to as A-8A, it is unclear if the USAF ever officially assigned the designation to the Model 100.Bradley, Robert, 2013. Convair Advanced Designs II: Secret Fighters, Attack Aircraft, and Unique Concepts 1929-1973. Manchester, England: Crécy Publishing. .
The Model 100 was eventually shelved in favor of the A-X program that would result in the development of the Fairchild Republic A-10 Thunderbolt II.
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