Development of the D.520 did not end at the armistice in 1940. Control of the project passed to SNCASE in 1941, after it absorbed the SNCAM. This version was to be powered by the 1,600 hp Hispano-Suiza 12Z engine. It would have been armed with two 20mm cannon and two MAC machine guns in the wings. On 12 September 1942 the German armistice commission gave permission for the manufacture of 105 of the new SE 520Z. The prototype was completed after the German invasion of Vichy France, but it never flew.
French Fighters of World War II, Alain Pelletier
. This book tells the story of the French fighter aircraft that attempted to stand up the Luftwaffe in 1940. It covers seven main aircraft and a larger number of minor variants. Each aircraft is taken from development and prototypes through the battle of France and into the period after the armistice. [see more
How to cite this article:
Rickard, J (20 April 2007), Dewoitine SE.520Z, http://www.historyofwar.org/articles/weapons_dewoitine_se520z.html