"McHale's Navy's" PT 73 was a British-designed 70-foot Vosper MTB (Motor Torpedo Boat) built under license in the U.S. for export to Russia. World War II ended before the boat could be sent to the Soviet Union. The boat was used for shots of PT 73 underway at sea, while a full-scale mock-up was used for studio scenes. The real PT 73 in WWII was a 78-foot Higgins PT boat, assigned to the U.S. Navy's MTB Squadron 13, and was placed in service on August 12, 1942. PT 73 was destroyed to prevent capture after running aground while delivering supplies to guerrillas near Lubang Island in the Philippines, on January 15, 1945.