Helicopter Sikorsky HRS-3 Serial 55-373 Register 130231 used by US Marine Corps USMC. Built 1953. Aircraft history and location Aircraft History 130231 US Marine Corps 1953-03-09Sikorsky S-55 c/n 55-373, ff:? del USMC as HRS-3, 130231, 09Mar53. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
