Rugged and dependable, the Hiller Model UH-12 Helicopters first flew in 1948, and also entered U.S. Army service as the OH-23A through G. They served until the late '70's as trainers, utility and liason, and as medi-vac helos. Always overshadowed by the more famous Bell Model 47, the Hillers gave sterling service throughout their careers. Also saw service with the US Navy and dozens of forces around the world