The SNCASE SE.580 was a prototype fighter designed during World War II by the French aircraft company SNCASE (Société nationale des constructions aéronautiques du Sud-Est). Loosely based on the pre-war Dewoitine D.520, it was intended to be powered by a Hispano-Suiza 24Z piston engine. Production began on a single prototype, but the program was cancelled before it was completed.

Data from Du M.580 au S.E.582 ^[1]

General characteristics

• Crew: 1
• Length: 13 m (42 ft 8 in)
• Wingspan: 15.862 m (52 ft 0 in)
• Wing area: 28.4 m² (306 sq ft)
• Empty weight: 5,143 kg (11,338 lb)
• Gross weight: 7,524 kg (16,588 lb)
• Max takeoff weight: 8,128 kg (17,919 lb)
• Fuel capacity: 2,000 liters (440 imp gal; 528 U.S. gal)
• Powerplant: 1 × Hispano-Suiza 24Z 24-cylinder liquid-cooled H engine, 2,200 kW (3,000 hp)

Performance

• Maximum speed: 749 km/h (465 mph, 404 kn) at 9,300 m (30,500 ft)
• Combat range: 1,300 km (810 mi, 700 nmi) at 6,000 m (20,000 ft)
• Ferry range: 2,750 km (1,710 mi, 1,480 nmi) at 8,000 m (26,000 ft)
• Service ceiling: 13,600 m (44,600 ft)
• Time to altitude: 6 minutes, 3 seconds to 6,000 m (20,000 ft)

Armament

• Guns: 1 × 30 mm (1.2 in) autocannon (planned)
• 6–8 machine guns
• Bombs: 1 × 500 kg (1,102 lb)

Related lists

• List of fighter aircraft

• Carbonel, Jean-Christophe (2016). French Secret Projects. Vol. 1: Post War Fighters. Manchester, UK: Crecy Publishing. ISBN 978-1-91080-900-6.
• Curnel, Jean (July 1972). "Du M.580 au S.E.582" [From M.580 to S.E.582]. Le album de fanatique de l'Aviation (in French) (35): 8–11. ISSN 0757-4169.
• Hartmann, Gérard. "Le réalizations de la SNCASE" [The Achievements of SNCASE] (PDF). Dossiers historiques et techniques aéronautique française (in French). Retrieved 23 May 2021.