Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1694 Register 150565 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150565 US Marine Corps 1965-07-02Sikorsky UH-34D, cn 58-1694, ff:? del USMC as UH-34D, 150565, unk w/o Southeast Asia, 02Jul65. Send Updates Use APP to upload photo @ (optional) When Now? / / Send