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