Helicopter Sikorsky HRS-3 Serial 55-350 Register 130220 used by US Marine Corps USMC. Built 1953. Aircraft history and location Aircraft History 130220 US Marine Corps 1953-02-20Sikorsky S-55 c/n 55-350, ff:? del USMC as HRS-3, 130220, 20Feb53 Send Updates Use APP to upload photo @ (optional) When Now? / / Send