The Hiller 360 (civilian variant of the military UH-12) was a brand new helicopter for Arizona Helicopter Service. It was recognized with it's framed 'bubble'-type cabin and no fuselage structure. It was powered by a 175hp Franklin 6V4-178-B33 engine.<br />
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This helicopter would later crash in the canyon during a river runner support charter flight. The July 1950 accident resulted in minor injuries to the pilot and passenger.