Size: 19 x 25 inches

This original ‘RESTRICTED’ aircraft identification poster was published by the U.S. Naval Aviation Training Division April 1943. This poster was posted as a training tool as well as an in theater ID poster to help U.S. and other Allied pilots, bomber crews and Naval personal to identify Allied and enemy aircraft. W.E.F.T.U.P. or Wing, Engine, Fuselage, Tail, Undercarriage, Peculiarities was a system set up for the purpose of aircraft identification and recognition.

World War II saw some of the first introduction of these aircraft ID poster to prevent friendly fire and more accurate plane recognition in combat. It was believed these posters alone could save countless lives from friendly aircraft-on-aircraft or friendly anit-aircraft fire. These posters also could cut down precious second pilots, bomber gunners, and naval gun crews would have to ID a plane flying towards them intern saving their lives by shooting first.

Each poster provides the silhouettes, dimensions, and relevant information to educate both air and ground personnel in aircraft identification. Immediate identification of aircraft, friendly or not, was essential in order for the observer (whether in the air e.g., pilot, gunner, or patrol observer, or on the ground, e.g., anti-aircraft crew) to determine his next course of action (e.g., acknowledge, attack, evade, or report). Each poster details a large clean sky and background image of the specified aircraft located as the main top imagine on the poster. It also contains important ‘peculiarities’ such as where certain gun emplacements are located, other special aircraft features, as well as wing and length measurements.

 Handley Page HP.52 Hampden:

The Handley Page HP.52 Hampden was a British twin-engine medium bomber of the Royal Air Force (RAF). It was part of the trio of large twin-engine bombers procured for the RAF, joining the Armstrong Whitworth Whitley and Vickers Wellington. The newest of the three medium bombers, the Hampden was often referred to by aircrews as the "Flying Suitcase" because of its cramped crew conditions. The Hampden was powered by Bristol Pegasus radial engines but a variant known as the Handley Page Hereford had in-line Napier Daggers.

The Hampden served in the early stages of the Second World War, bearing the brunt of the early bombing war over Europe, taking part in the first night raid on Berlin and the first 1,000-bomber raid on Cologne. When it became obsolete, after a period of mainly operating at night, it was retired from RAF Bomber Command service in late 1942. By 1943, the rest of the trio were being superseded by the larger four-engined heavy bombers such as the Avro Lancaster.

Almost half of the Hampdens built, 714, were lost on operations, with 1,077 crew killed and 739 reported as missing. German Flak accounted for 108, one hit a German barrage balloon, 263 Hampdens crashed because of "a variety of causes" and 214 others were classed as "missing". Luftwaffe pilots claimed 128 Hampdens, shooting down 92 at night.