The Boeing XP-8 (Boeing Model 66) was a prototype American biplane fighter of the 1920s, notable for its unusual design incorporating the engine radiator into the lower wing.
The Bristol Badger was designed to meet a British need for a two-seat fighter-reconnaissance aeroplane at the end of World War I. Despite the 1918 Armistice, three Badgers were delivered to the Air Board to develop air-cooled radial engines, particularly that which became the Bristol Jupiter; two other Badgers were also built.
