Helicopter Sikorsky H-37A Mojave Serial 56-146 Register 58-1001 used by US Army Aviation Army. Built 1960. Aircraft history and location Aircraft History 58-1001 US Army Aviation 1960-03-04Sikorsky S-56, c/n 56-146, ff:? del US ARMY as H-37A, 58-1001, 04Mar60 redesig CH-37A, Oct 62 conv CH-37B, unk wfu & soc unk. scr 1970 Send Updates Use APP to upload photo @ (optional) When Now? / / Send