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The 46 cm (18.1 in) 46 cm/45 Type 94 naval rifle was a wire-wound gun.Mounted in three 3-gun turrets (nine per ship), they served as the main armament of the two Yamato-class battleships that were in service with the Imperial Japanese Navy during World War II.
The BL 18-inch Mk I naval gun was a breech-loading naval rifle used by the Royal Navy during World War I.It was the largest and heaviest gun ever used by the British. [1] Only the Second-World-War Japanese 46 cm/45 Type 94 had a larger calibre, 18.1 inches (46 cm), but it fired a lighter shell.
The 18"/48 caliber Mark 1 – United States Naval Gun was the initial name and design for a large caliber naval gun in the early 1920s. After the Washington Naval Treaty prohibited the development of guns larger than 16 in (406 mm), the gun was relined and finished as a high velocity 16"/56 Mark 4 gun.
BL 6 inch Mk XII naval gun 45-caliber United Kingdom: World War I - World War II 152.4 mm (6.00 in) BL 6 inch naval guns Mk XIII – XVIII United Kingdom: World War I - World War II 152.4 mm (6.00 in) BL 6 inch Mk XXII naval gun 50-caliber United Kingdom: 1920s - World War II 152.4 mm (6.00 in) BL 6 inch Mk XXIII naval gun 50-caliber
The Yamato-class battleships had primary armaments consisting of three 3-gun turrets mounting 46 cm (18.1 in)/45 caliber Type 94 naval guns – the largest guns ever fitted to a warship, [6] although they were officially designated as the 40 cm/45 caliber (15.9 in) Type 94 [52] – each of which weighed 2,774 tonnes for the complete mount. [53]
A 46 cm (18 in) Sanshiki shell displayed at the Yamato Museum The explosion of a 46 cm (18 in) San Shikidan incendiary anti-aircraft shell San-shiki-dan (三式弾, "Type 3 shell") was a World War II-era combined shrapnel and incendiary anti-aircraft round used by the Imperial Japanese Navy.
This includes 18-inch guns, which were actually 457.2 mm. Pages in category "460 mm artillery" ... BL 18-inch Mk I naval gun; BL 18-inch railway howitzer
The last of these, HMS Furious, was intended to carry only two 18-inch guns, one forward and one aft, far larger and more powerful than the 15-inch weapons that were standard on the Queen Elizabeth and Revenge-class battleships, and the two Renown-class battlecruisers; at the same time her deck and belt armour was at best only 3 inches thick ...