Editing St Vincent-class battleship (section)

===Modifications===
[[File:British Battleships of the First World War Q40389.jpg|thumb|''Vanguard'' at anchor, 1910]]
The guns on the forward turret roof were replaced in 1910–1911 by a rangefinder on ''Vanguard'', and on her sisters in 1911–1912. About two years later, [[gun shield]]s were fitted to most of the guns in the superstructure and the [[bridge (nautical)|bridge]] structure was enlarged around the base of the forward tripod mast. During the first year of the war, the base of the forward superstructure was rebuilt to house eight 4-inch guns and the turret-top guns were removed, which reduced their secondary armament to a total of fourteen guns; a pair of 3-inch (76&nbsp;mm) [[anti-aircraft gun|anti-aircraft (AA) guns]] were added. Approximately {{convert|50|LT|t}} of additional deck armour were added after the Battle of Jutland in May 1916. By April 1917, the sisters mounted thirteen 4-inch anti-torpedo boat guns as well as single 4-inch and 3-inch AA guns. The stern torpedo tube was removed in 1917–1918 and ''St Vincent'' was equipped to operate [[kite balloon]]s. In 1918, a high-angle [[Rangefinding telemeter|rangefinder]] was fitted on the forward spotting top of the surviving ships and [[Flight deck#Early|flying-off platforms]] were installed on the roofs of the fore and aft turrets of ''Collingwood''.<ref name=b81/>