Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1450 Register 149350 used by US Marine Corps USMC. Aircraft history and location Aircraft History 149350 US Marine Corps 1962-10Sikorsky HUS-1, cn 58-1450, ff:? del USMC as HUS-1, 149350, unk redesig UH-34D, Oct62 w/o Marble Mountain, RVN, 09Apr65. Send Updates Use APP to upload photo @ (optional) When Now? / / Send