The Westland Whirlwind helicopter was a British license-built version of the U.S. Sikorsky S-55/H-19 Chickasaw. It primarily served with the Royal Navy's Fleet Air Arm in anti-submarine and search-and rescue roles.

The Elefant (Elephant) stemmed from the Porsche design for the PzKpfw VI Tiger. Henschel was awarded the contract for the new tank, but it was decided to use the Porsche design as a tank destroyer. Hitler demanded that the new vehicle be ready for the 1943 offensive on the Russian front, so development was rather hurried.

Design on the KV-1 heavy tank began in 1938, with the intention that it should be the successor to the T-35 heavy tank. The first models of the KV-1 were field-tested during the Red Army's disastrous 1940 campaign in Finland.

Early in June 1944, Army commanders expressed a need for a new breed of tank that could mount either a 90mm or 105mm main gun. This request was approved by the Army Staff soon thereafter even though trials of the new T26E1 had already begun back at Fort Knox earlier that year.

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Ordnance BL 14-inch gun on truck, railway were 2 British 14-inch Mk III naval guns mounted on railway carriages, used on the Western Front in 1918. The guns had a very brief service life and were scrapped in 1926, but their railway carriages were re-used for mounting guns in World War II.

The Yamato class battleships were battleships of the Imperial Japanese Navy (IJN) constructed and operated during World War II. Displacing 72,000 long tons (73,000 t) at full-load, the vessels of the class were the largest, heaviest, and most heavily-armed battleships ever constructed. The class carried the largest naval artillery ever fitted to a warship, nine 460-millimetre (18.1 in) naval guns, each capable of firing 2,998-pound (1,360 kg) shells over 26 miles (42 km).