In January of 1972, a request for proposals, or RFP, was issued to lay out the guidelines for a new utility helicopter to replace the Bell UH-1 Iroquois type. The Huey had served admirably in the Vietnam conflict, but it lacked engine power, was vulnerable to small-arms fire, and was limited in lifting/transporting heavy external payloads. Under the UTTAS (Utility Tactical Transport Aircraft System) competition, the new clean-sheet design intended...
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