Helicopter Sikorsky HRS-2 Serial 55-187 Register 130144 used by US Marine Corps USMC. Built 1952. Aircraft history and location Aircraft History 130144 US Marine Corps 1952-07-21Sikorsky S-55 c/n 55-187, ff:? del USMC as HRS-2, 130144, 21Jul52 1956-05-05 soc 05may56 Send Updates Use APP to upload photo @ (optional) When Now? / / Send