Hispano-Suiza HS404 20mm cannon for aircraft 3D model | CGTrader
Hispano-Suiza HS.404 - Wikipedia
Сообщество Steam :: Руководство :: Aircraft Cannons: Seperating the best from the rest.
The Hispano Cannon — Variants & Technology | Reference
Hispano 20mm Aircraft Cannon by Small-Brown-Dog on DeviantArt
20 mm slbrhpgr 95, one of the last 20x110 Hispano cartridges produced in Europe - General Ammunition Discussion - International Ammunition Association Web Forum
The Pacific War Online Encyclopedia: Hispano-Suiza 20mm Cannon