To provide an alternate design in the competition to supply the French Air Force with a successor to the Nieuport 62. Rather than the low-wing monoplane design of the D.500 the D.560 had a shoulder-mounted gull wing. During test flying the D.560 was found to be slower than the D.500 and had stability problems. The aircraft was rebuilt with a parasol wing and redesignated the D.570. Performance was even worse than the gull wing design, and following a crash of the prototype development was abandoned.
D.560Prototype gull wing fighter, one built.D.570The D.560 rebuilt with a parasol wing.