Helicopter Sikorsky HSS-1 / SH-34G Seabat Serial 58-5 Register 137849 used by US Navy USN. Built 1955. Aircraft history and location Aircraft History 137849 US Navy 1955-03-03Sikorsky HSS-1, c/n 58-5, ff? del US Navy as HSS-1, 137849, 03Mar55 xfer HS-3, unk w/o aboard USS Valley Forge (LPH-8), 06Feb60. Send Updates Use APP to upload photo @ (optional) When Now? / / Send