The Letov Š-12 was a fighter aircraft built by Letov in the early 1920s.
== Design == The Š-12 was a monoplane based on the Letov Š-4. The aircraft remained a prototype only without entering mass production.
== Specifications (Š-12) == Data from General characteristics Crew: 1 Length: 6.58 m (21 ft 7 in) Wingspan: 9.4 m (30 ft 10 in) Wing area: 15.5 m2 (167 sq ft) Empty weight: 673 kg (1,484 lb) Max takeoff weight: 983 kg (2,167 lb) Powerplant: 1 × Hispano-Suiza 8Ba V-8 water-cooled piston engine, 160 kW (220 hp) Performance
Maximum speed: 180 km/h (110 mph, 97 kn) Cruise speed: 150 km/h (93 mph, 81 kn) Range: 470 km (290 mi, 250 nmi) Service ceiling: 6,000 m (20,000 ft) Armament
Guns: 2x 7.7 mm (0.303 in) machine guns