Helicopter Sikorsky HRS-2 Serial 55-307 Register 130194 used by US Marine Corps USMC. Built 1952. Aircraft history and location Aircraft History 130194 US Marine Corps 1952-11-26Sikorsky S-55 c/n 55-307, ff:? del USMC as HRS-2, 130194, 26Nov52 1955-10-29 Sikorsky HRS-3 29oct55 Send Updates Use APP to upload photo @ (optional) When Now? / / Send