Published by the Admiralty in August 1916 at the height of the Great War, and originally issued in a top secret edition of just 300 copies for the use of officers of the Royal Naval Air Service, this extraordinarily comprehensive volume is a complete compendium of armaments in use at the halfway point of the conflict. The book has sections on Bombs, Fuzes, Grenades, Machine Guns, Bomb and Gun Sights, Gun Mountings, Small Arms peculiar to aircraft; instruction in Gun-laying and Bomb-dropping; and Armour. Fully illustrated throughout with photographs, drawings and diagrams. ¿This facsimile edition has been reproduced from the copy formerly held by the MOD Pattern Room Library.