The BL 13.5-inch Mk VI gun was a British heavy naval gun, originally ordered by the Ottoman Navy to equip its dreadnoughts around 1911. The one ship completed was seized by the British Government when World War I began in August 1914 and became . Only 10 guns were built, to a design similar to that of their 45-calibre BL 13.5-inch Mk V naval gun. The smaller chamber in the Mk VI gun meant that less propellant could be used which reduced muzzle velocity by and range by . Designed by Vickers, they manufactured the guns of X and Y turrets, while Elswick Ordnance Company manufactured the guns of A, B, and Q turrets.
Weapons of comparable role, performance and era
340mm/45 Modèle 1912 gun French equivalent
References
Bibliography
Friedman, Norman (2011). Naval Weapons of World War One. Barnsley, UK: Seaforth Publishing. Johnson and Buxton (2013). The Battleship Builders. Barnsley, UK: Seaforth Publishing.
External links 13.5-inch Mk VI on Navweaps