Service: USMC Armament: 20 mm M197 Gatling cannon ... demonstrator delivered to the U.S. Army in 1962 based upon a UH-1 Huey, the AH-1W Super Cobra is the world’s first attack helicopter.

The helicopter training squadron operates the UH-1Y Venom and AH-1Z Viper helicopters, a USMC spokesperson said. No other injuries were reported.