Helicopter Sikorsky HRS-1 Serial 55-058 Register 127822 used by US Marine Corps USMC. Built 1951. Aircraft history and location Aircraft History 127822 US Marine Corps 1951-09-05Sikorsky S-55 c/n 55-058, ff:? del USMC as HRS-1, 127822, 05Sep51 1953-03-25 w/o 25mar53 at Ascom City, Korea Send Updates Use APP to upload photo @ (optional) When Now? / / Send