Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-786 Register 145737 used by US Marine Corps USMC. Built 1958. Aircraft history and location Aircraft History 145737 US Marine Corps 1958-02-10Sikorsky HUS-1, cn 58-786, ff:? del USMC as HUS-1, 145737, 10Feb58 xfer HMM-361, YN-##, unk redesig UH-34D, Oct62 w/o SEA, 03Jan64. HMH-361 Send Updates Use APP to upload photo @ (optional) When Now? / / Send