The outbreak of World War I found the British Army's Royal Flying Corps with just over 200 fragile, unarmed reconnaissance aircraft, and a uniformed strength of just over 2,000 all ranks; the Royal Naval Air Service had some 50 seaplanes. By the Armistice of 1918 the unified Royal Air Force was the largest in the world, with about 22,650 aeroplanes - including a strategic bomber force - and 27,330 men operating from some 700 bases. This second in a two-part study covers RAF, WRAF and RAFNS uniforms from the unification of the service in April 1918; and the whole span of flying clothing during the Great War.