The Taylorcraft Auster IV was a British three-seater light liaison or Observation aircraft of the Second World War. The Taylorcraft Auster IV was a high-wing braced monoplane powered by a Lycoming O-290 four-cylinder Horizontally opposed air cooled engine providing a top speed of 209 kmh and a range of 352 km. A civilian version, was produced under the name Taylorcraft Auster J.1. Research Taylorcraft Auster IV