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the original AH-1 Cobra flew at 170 mph
The AH-1 Cobra was first fielded in South Vietnam in 1966.
The Bell AH-1 Cobra had a Lycoming T-53- L13 Turboshaft of 1,100 hp
AH-1W Super Cobra Helicopter
Cost $10,700,000.00
The AH-1 Cobra was the first attack helicopter that saw general combat service in 1965/66 (not a proto-type experiment).
The AH-56 Cheyenne gunship made it's first experimental flight in 1967.