The Langley 2-4 variously described as the Langley Monoplane or Langley Twin was a twin-engine utility aircraft built in the United States in 1940. Named in honour of Samuel Pierpont Langley the aircraft was designed to make use of non-strategic materials in its construction and thereby avoid any shortages brought about by war. Its design was conventional enough - a low-wing cantilever monoplane with twin tails and tailwheel undercarriage.
Made by Langley Aircraft Corporation.