Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-913 Register 145771 used by US Marine Corps USMC. Aircraft history and location Aircraft History 145771 US Marine Corps 1962-10Sikorsky HUS-1, cn 58-913, ff:? del USMC as HUS-1, 145771, unk redesig UH-34D, Oct62 w/o Southeast Asia, 31Aug65. Send Updates Use APP to upload photo @ (optional) When Now? / / Send