Helicopter Sikorsky HSS-1N / SH-34J Seabat Serial 58-1021 Register 145699 used by US Navy USN. Aircraft history and location Aircraft History 145699 US Navy 1962-10Sikorsky HSS-1N, cn 58-1021, ff:? del USN as HSS-1N, 145699, unk redesig SH-34J, Oct62 soc 22aug70. Send Updates Use APP to upload photo @ (optional) When Now? / / Send