Helicopter Sikorsky H-37A Mojave Serial 56-097 Register 57-1643 used by US Army Aviation Army. Built 1958. Aircraft history and location Aircraft History 57-1643 US Army Aviation 1958-08-15Sikorsky S-56, c/n 56-097, ff:? del US ARMY as H-37A, 57-1643, 15Aug58 redesig CH-37A, Oct 62 conv CH-37B, unk wfu & soc unk. 1979-10 A KBDL Destroyed by Tornado Bradley Air Museum, CT Send Updates Use APP to upload photo @ (optional) When Now? / / Send