Aero A.11

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 a large number of 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.

Variants

• A.11 : Two-seat light bomber, reconnaissance biplane.
• A.11HS : Export version for Finland.
• A.11N : Night bomber version.
• Ab.11 : Light bomber version.

Specifications (A.11)

General characteristics

• Crew: 2
• Length: 8.2 m (27 ft)
• Wingspan: 12.8 m (43 ft 0 in)
• Height: 3.1 m (10 ft)
• Wing area: 36.5 m² (393 ft²)
• Empty weight: 1,080 kg (2,380 lb)
• Loaded weight: 1,537 kg (3,381 lb)
• Powerplant: 1× Walter W IV , 180 kW (240 hp)

Performance

• Maximum speed: 240 km/h (130 knots, 150 mph)
• Range: 750 km (400 nm, 470 mi)
• Service ceiling: 7,600 m (25,000 ft)
• Rate of climb: 3.82 m/s (751 ft/min)
• Wing loading: 42 kg/m² (8.6 lb/ft²)
• Power/mass: 120 W/kg (0.071 hp/lb)

Armament

• Guns:
  
  • 1× forward firing .303 in (7.7 mm) Vickers machine gun
  • 2× .303 in (7.7 mm) Lewis machine gun in flexible mount for observer
• Bombs: 200 kg (441 lb)

Operators

• Czechoslovakia
• Finland

See also

Related development

• Aero A.12
• Aero A.21
• Aero A.22
• Aero A.25
• Aero A.29

External links

• Photo and drawings at Ugolok Neba site.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Aero A.11".