BL 4-inch Mk VIII naval gun
The BL 4-inch Mark VIII naval gun was a British medium-velocity wire-wound naval gun introduced in 1908 as an anti-torpedo boat gun in smaller ships whose decks could not support the strain of the heavier and more powerful Mk VII gun. Mk VIII history The gun succeeded the QF 4-inch Mk III, whose shell had been considered insufficiently powerful for its intended role. The BL Mk VIII fired a shell. It armed the following warships : laid down 1905 destroyers from (1908) onwards. of 1909 s of 1910 s of 1910 s (Australia) of 1910. The gun was succeeded in its class from 1911 by the QF 4-inch Mk IV. In World War II many guns were used to arm merchant ships. Mk XI submarine gun A Mark XI-variant was adapted to arm the K-class submarines laid down 1915. See also List of naval guns German 10.5 cm SK L/40 naval gun – firing slightly heavier shell Notes References Sources HANDBOOK for the 4" Mark VII. and VIII. B.L. Guns 1913 (Corrected to September 1913.) ADMIRALTY Gunnery Branch, G.8652/13 External links Tony DiGiulian, British 4"/40 (10.2 cm) BL Mark VIII and Mark XI Naval guns of the United Kingdom World