Helicopter Sikorsky HO4S-1 Serial 55-008 Register 125508 used by US Navy USN. Built 1950. Aircraft history and location Aircraft History 125508 US Navy 1950-11-30Sikorsky S-55 c/n 55-008, ff:? acc BuAerRep (BAR) East Hartford, CT, 30Nov50 del USN as HO4S-1, 125508, 08Dec50 1951-03-12w/o 12mar51 Send Updates Use APP to upload photo @ (optional) When Now? / / Send