Helicopter Sikorsky HRS-1 Serial 55-061 Register 127825 used by US Marine Corps USMC. Built 1951. Aircraft history and location Aircraft History 127825 US Marine Corps 1951-09-26Sikorsky S-55 c/n 55-061, ff:? del USMC as HRS-1, 127825, 26Sep51 Send Updates Use APP to upload photo @ (optional) When Now? / / Send
