Helicopter Sikorsky HRS-2 Serial 55-130 Register 129034 used by US Marine Corps USMC. Built 1952. Aircraft history and location Aircraft History 129034 US Marine Corps 1952-04-17Sikorsky S-55 c/n 55-130, ff:? del USMC as HRS-2, 129034, 17Apr52 1955-03-15 Sikorsky HRS-3 15mar55 1968-03-12 soc 12mar68 Litchfield Send Updates Use APP to upload photo @ (optional) When Now? / / Send