Bell UH-1
The Bell UH-1 Iroquois is powered by a single turboshaft engine, with two-bladed main and tail rotors. It has a metal fuselage of semi-monocoque construction with tubular landing skids and two rotor blades on the main rotor.Early UH-1 models had a single Lycoming T53 turboshaft engine. Later UH-1 and related models had twin engines and four-blade rotors. Main structure consist of two longitudinal main beams that run under the passenger cabin to the nose and back to the tail boom attachment point. The main beams are separated by transverse bulkheads and provide the supporting structure for the cabin, landing gear, under-floor fuel tanks, transmission, engine and tail boom.The helicopter was developed by Bell Helicopter to meet the United States Army’s requirement for a medical evacuation and utility helicopter in 1952, and it first flew on 20 October 1956. It was nicknamed “Huey.”