An item reported that the British Iron-Duke-class (1) was to be fitted out with 2-7,6cm guns to be used against aircraft and balloons. With a rate of fire of 1-15 shots each minute were those guns able to fire 12 pound projectiles to a maximum vertical ceiling of 6.400 metres. For the same purpose were the 7,6cm guns of the 1.500 ton submarines fitted out with especially carriages.
Note
1. Battleships. The HMS Iron Duke was laid down at the Portsmouth Dockyard on 12 January 1912, launched on 12 October, commissioned in March 1914 and finally stricken in 1948 and sold to be broken up.
