Helicopter Sikorsky H-37A Mojave Serial 56-120 Register 57-1655 used by US Army Aviation Army. Built 1959. Aircraft history and location Aircraft History 57-1655 US Army Aviation 1959-05-01Sikorsky S-56, c/n 56-120, ff:? del US ARMY as H-37A, 57-1655, 01May59 redesig CH-37A, Oct 62 conv CH-37B, unk wfu & soc unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
