Bell 309 KingCobra
Prototype attack helicopter / From Wikipedia, the free encyclopedia
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The Bell Model 309 KingCobra was an experimental attack helicopter developed by Bell Helicopter, based on the Bell AH-1 Cobra.
Quick Facts Role, Manufacturer ...
Bell 309 KingCobra | |
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A Bell 309 twin-engine variant | |
Role | Attack helicopter prototype |
Manufacturer | Bell Helicopter |
First flight | 10 September 1971 (Twin-engine)
January 1972 (Single engine)[1] |
Primary user | United States Army |
Number built | 2 |
Developed from | Bell AH-1 Cobra |
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