Helicopter Sikorsky HRS-1 Serial 55-068 Register N9009R N90009 127830 used by US Marine Corps USMC. Built 1951. Aircraft history and location Aircraft History 127830 US Marine Corps 1951-09-26Sikorsky S-55 c/n 55-068, ff:? del USMC as HRS-1, 127830, 26Sep51 N90009 - ex 127830 N9009R - ex N90009 Send Updates Use APP to upload photo @ (optional) When Now? / / Send
