WWII Propaganda poster Royal Air Force, Royal Auxiliary Air Force

WWII (1939 - 1945) RAF Royal Air Force propaganda poster, The Royal Auxiliary Air Force (RAuxAF), originally the Auxiliary Air Force (AAF), is the voluntary active duty reserve element of the Royal Air Force, providing a primary reinforcement capability for the regular service. It consists of paid volunteers who give up some of their weekends, evenings and holidays to train at one of a number of squadrons around the United Kingdom. Its current mission is to provide trained personnel in support of the RAF. By March 1939, 21 flying squadrons had been formed, the 20 surviving units being incorporated into the Royal Air Force at the outbreak of war. The squadrons were equipped with a variety of operational aircraft which included Hurricanes and Spitfires. The squadrons scored a number of notable successes before and during the Second World War: the first flight over Mount Everest, the first German aircraft destroyed over British territorial waters - and over the mainland, the first U-boat to be destroyed with the aid of airborne radar, the first kill of a V-1 flying bomb; the first to be equipped with jet-powered aircraft, and the highest score of any British night fighter squadron. In the Battle of Britain, the AAF provided 14 of the 62 Squadrons in RAF Fighter Command's Order of Battle and accounted for approximately 30% of the accredited enemy kills. The losses caused during the Battle of Britain were replaced by drafting in regular and RAFVR pilots.The Tactical Air Force squadrons were chosen to carry out several successful ultra low-level raids on key 'pin-point' targets in occupied Europe. The Balloon Squadrons also played their part, downing and deterring many hostile aircraft and were accredited with the destruction of 279 V1 flying bombs.The Auxiliary Air Force was also responsible for the anti-aircraft Balloon defences of the UK, At the outbreak of war in 1939 there were about 42 Squadrons operating barrage balloons, with the number of Squadrons peaking at about 102 in 1944.