Helicopter Sikorsky HRS-1 Serial 55-026 Register 127792 used by US Marine Corps USMC. Built 1951. Aircraft history and location Aircraft History 127792 US Marine Corps 1951-05-01Sikorsky S-55 c/n 55-026, ff:? del USMC as HRS-1, 127792, 01May51 1951-10-22 w/o 22oct51 X-83, Korea Send Updates Use APP to upload photo @ (optional) When Now? / / Send
