Electric gun turrets for aircraft

THIS war has seen an unprecedented development of armament, both offensive and defensive, for military aircraft. One of the most widely used and, therefore, perhaps one of the most important of these has been the power-driven gun turret, three or four of which are used on all our heavy bombers, and one or more on most smaller bombers and equivalent planes. This paper briefly surveys the field of electric-drive equipment for turrets to give a picture of the types and variety of equipment now in use and the requirements made of it, together with a description of how it works.