The Arado Ar E.581.4 was a single-seat fighter with
a deep fuselage. It was powered by one HeS 011 turbojet fed by a divided
air intake under the cockpit. The wing was of a delta shape with twin fins
and rudders on the trailing edge. Armament consisted of two MK 108 30mm cannon,
and the landing gear was of a tricycle arrangement. Span: 8 m (26' 3.2") Length: 5.65 m (18' 6.6") Max. Speed: 854 km/h (530 mph)