Helicopter Sikorsky HRS-3 Serial 55-340 Register 130212 used by US Marine Corps USMC. Built 1953. Aircraft history and location Aircraft History 130212 US Marine Corps 1953-02-28Sikorsky S-55 c/n 55-340, ff:? del USMC as HRS-3, 130212, 28Feb53 Send Updates Use APP to upload photo @ (optional) When Now? / / Send