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.

Aero A.11
Class Aircraft
Type Bomber
Manufacturer Aero Vodochody
Origin Czechoslovakia
Country Name Origin Year
Czechoslovakia 1925
Country Name Operational Year Retirement Year
Czechoslovakia View
Finland View
ManufacturerName Production From Production To Quantity
Aero Vodochody 250 View

Role Light bomber
Reconnaissance aircraft
Manufacturer Aero Vodochody
First flight 1925
Introduction 1920s
Retired 1940s
Primary users Czech Air Force
Finnish Air Force
Number built ~250

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)


  • 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)


  • 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)

End notes