Da farko a matsayin YHO-6A bisa ga Army ta nadin tsarin, da jirgin sama da aka redesignated a matsayin YOH-6A a shekarar 1962 a lokacin da Ma'aikatar tsaron kasar halitta a hade nadin tsarin ga dukan jirgin sama. Biyar samfurori da aka gina, sanye take da wani 252 shp (188 kW) Allison T63-A-5A, da kuma tsĩrar da Amurka Army a Fort Rucker, Alabama gasa da sauran goma samfur jirgin sama da aka gabatar da Bell da Fairchild-Hiller.
Shekara ta 1963