Bell Griffin HT.1

10 aircraft

The Bell 412, a twin-engine utility helicopter that became the backbone of civil and military rotorcraft operations worldwide, first flew in August 1979. This twin-turboshaft helicopter featured an innovative four-blade composite main rotor system and could transport up to 14 passengers or carry 5,000 pounds of cargo internally or externally. With a 46-foot rotor diameter and top speed of 161 mph, the aircraft established itself as one of the most versatile helicopters ever built. Bell Helicopter developed this workhorse, which has accumulated over 6.5 million flight hours across 1,719 units produced since entering service in 1981.