The Hawker F.20/27 was a British fighter design built to an Air Ministry specification for an interceptor in the late 1920s. It was a single-seat biplane powered by a radial engine; the very similar but V-12-engined Hawker Fury development proved superior and only one F.20/27 was built.
The Hanriot HD.2 was a biplane floatplane fighter aircraft produced in France during the First World War which was used after the war for testing the use of aircraft from warships.
