Helicopter Sikorsky HRS-1 Serial 55-043 Register used by US Navy USN. Built 1951. Aircraft history and location Aircraft History n/a US Navy 1951-07-06Sikorsky HRS-1 c/n 55-043, ff: n/a del to USN as HRS-1 static test airframe, no Bureau Number assigned, 06Jul51. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
