D-3803 employed the same wing, tail surfaces and undercarriage, but featured a fuselage with shallower aft decking and an all-round vision canopy, and was powered by a 1,430 hp Saurer (license-built Hispano-Suiza) YS-3 engine.
Retaining the three-cannon armament of the D-3802A, the prototype D-3803 was flown for the first time in May 1947, but the flight test and evaluation program was delayed by engine teething troubles, and before this program could be completed, the decision was taken to acquire surplus P-51D Mustangs from the USA. The D-3803 prototype joined the pre-series
D-3802As in service with Fliegerstaffel 17.
Span: 32 ft 10.5 in (10.02 m)
Length: 30 ft 7.33 in (9.33 m)
Height: 12 ft 4 in (3.76 m)
Wing area: 188.37 sq.ft (17.5 sq.m)
Weight empty: 6,493 lb (2,945 kg)
Loaded weight: 8,598 lb (3,900 kg)
Max speed: 422 mph (680 kmh) at 22,965 ft (7,000 m)
Climb: 3,012 ft (918 m)/min
Range: 404 mls (650 km)