Helicopter Sikorsky HRS-1 Serial 55-073 Register 127835 used by US Marine Corps USMC. Built 1951. Aircraft history and location Aircraft History 127835 US Marine Corps 1951-11-02Sikorsky S-55 c/n 55-073, ff:? del USMC as HRS-1, 127835, 02Nov51 soc 1957 GI Memphis Send Updates Use APP to upload photo @ (optional) When Now? / / Send
