Dewoitine 510 of the GC II/1, Buc, France (1939). The Dewoitine D.510 was the last fighter used by the French Air Force with a fixed landing gear and an open cockpit. 57 Dewoitine D.510 in service on May 10, 1940. The GC III / 4, was the last user of D. 510, was dissolved on August 25, 1940
Dewoitine 520 of the GC I/3, France (June1940). It began to equip the Air Force from January 1940, but was not really operational until 13 May 1940. At the armistice (25 June 1940), 437 copies had been produced and 351 delivered.