Helicopter Sikorsky HR2S-1W Serial 56-021 Register 141647 used by US Navy USN. Built 1957. Aircraft history and location Aircraft History 141647 US Navy 1957-06-03Sikorsky S-56, c/n 56-021, ff:? del USN as HR2S-1W, 141647, 03Jun57 w/o unk. 1957-11-12w/o 12nov57 Send Updates Use APP to upload photo @ (optional) When Now? / / Send
