Detailed history and photos of helicopter Sikorsky HRS-3 Serial 55-1076 Register 144668 used by US Navy USN Track service timeline and current status. Aircraft History 144668 US Navy 1957-04-12Sikorsky S-55 c/n 55-1076, ff:? del USN as HRS-3, 144668, 12Apr57. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
