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|Primary users||Czech Air Force|
Finnish Air Force
The Aero A.11 was a biplane light bomber and reconnaissance aircraft built in Czechoslovakia between the First and Second World Wars. It formed the basis for many other Czechoslovakian military aircraft of the inter-war period. Around 250 were built, with some remaining in service at the outbreak of World War II.
Designed by Antonin Husnik, it was a development of the Aero A.12 (despite what the numbering of the designs might suggest). A Hispano-Suiza 8Fb-powered version, the A.11H-s was built for the Finnish Air Force, the only foreign operator of the type. The Finns had eight aircraft of this type and used them between 1927-39.
- A.11 : Two-seat light bomber, reconnaissance biplane.
- A.11HS : Export version for Finland.
- A.11N : Night bomber version.
- Ab.11 : Light bomber version.
Data from Tschechoslowakische Flugzeuge : von 1918 bis heute
- Crew: 2
- Length: 8.2 m (26 ft 11 in)
- Wingspan: 12.8 m (42 ft 0 in)
- Height: 3.1 m (10 ft 2 in) (A.11}
- Wing area: 36.5 m2 (393 sq ft)
- Empty weight: 1,080 kg (2,381 lb)
- Gross weight: 1,588 kg (3,501 lb)
- 1,537 kg (3,389 lb) (A.11}
- Powerplant: 1 × Breitfield-Danek Perun II 6-cylinder water-cooled in-line piston engine, 180 kW (240 hp)
- Propellers: 2-bladed fixed-pitch propeller
- Maximum speed: 216 km/h (134 mph, 117 kn)
- 240 km/h (150 mph; 130 kn) (A.11}
- Cruise speed: 190 km/h (120 mph, 100 kn)
- Range: 750 km (470 mi, 400 nmi)
- Service ceiling: 7,000 m (23,000 ft)
- 7,600 m (24,934 ft) (A.11}
- Rate of climb: 3.82 m/s (752 ft/min) (A.11}
- Time to altitude: 5,000 m (16,404 ft) in 19 minutes 30 seconds
- Wing loading: 43.7 kg/m2 (9.0 lb/sq ft)
- 42 kg/m2 (8.6 lb/sq ft) (A.11}
- Bombs: 200 kg (441 lb) (A.11}}
Aircraft of comparable role, configuration, and era
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