Helicopter Sikorsky HRS-2 Serial 55-257 Register 130174 used by US Marine Corps USMC. Built 1952. Aircraft history and location Aircraft History 130174 US Marine Corps 1952-10-08Sikorsky S-55 c/n 55-257, ff:? del USMC as HRS-2, 130174, 08Oct52 1958-05-16 w/o 16may58 Send Updates Use APP to upload photo @ (optional) When Now? / / Send