Sopwith 1 1/2 Strutter British bomber
Eastern Express 72158

The Sopwith "1 1/2 Strutter" was a British one or two-seat biplane multi-role aircraft of the First World War. It is significant as the first British-designed two seater tractor fighter, and the first British aircraft to enter service with a synchronised machine gun. It was given the name "1 1/2 Strutter" because of the "one-and-a-half" (long and short) pairs of cabane struts supporting the top wing. As well as serving with both British air servies, it also saw widespread but rather undistinguished service with the French Aeronautique Militaire. Sopwith "1 1/2 Strutter" was universally used but "non-official" name for two-seat fighter-scout, bomber and reconnaissance versions. [Wikipedia]