Helicopter Sikorsky HRS-2 Serial 55-203 Register 130146 used by US Marine Corps USMC. Built 1952. Aircraft history and location Aircraft History 130146 US Marine Corps 1952-08-11Sikorsky S-55 c/n 55-203, ff:? del USMC as HRS-2, 130146, 11Aug52 Sikorsky HRS-3 07jun55 1961-02-14 w/o 14feb61 Send Updates Use APP to upload photo @ (optional) When Now? / / Send