1/72 Boeing YUH-61

Anigrand Craftswork - 1/72 Boeing YUH-61. In 1965, the U.S. Army launched the Utility Tactical Transport Aircraft System (UTTAS) program. The initial specification called for an aircraft able to carry a crew of three and eleven troops with the main goal of replacing the Bell UH-1 Huey. Requests for proposals were issued to the industries in 1972. All the designs proposed in response to the specification were required to use two G.E. turboshaft engines and wheeled landing gears. Bell, Boeing and Sikorsky submitted proposals and the designs of Boeing model 237 and Sikorsky S-70 were selected to proceed to prototype construction as the YUH-61 and YUH-60. The Boeing YUH-61 made its maiden flight in 1974. It was the Boeing first design with single main rotor. All the three YHU-61A prototypes were delivered to the Army in 1976. A Uttas competitive evaluation was conducted over the next eight months, with finally the Sikorsky S-70 declared winner, as Sikorsky's design was less complex than Boeing's.