Helicopter Sikorsky HRS-3 Serial 55-335 Register 130207 used by US Marine Corps USMC. Built 1953. Aircraft history and location Aircraft History 130207 US Marine Corps 1953-02-25Sikorsky S-55 c/n 55-335, ff:? del USMC as HRS-3, 130207, 25Feb53 Send Updates Use APP to upload photo @ (optional) When Now? / / Send