Aero A.11

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Aero A.11
Aero A-11.jpg
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

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.

Replica Ab.11 in the Prague Aviation Museum, Kbely

Variants[edit]

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

Operators[edit]

 Czechoslovakia
 Finland

Specifications (Ab.11)[edit]

Data from Tschechoslowakische Flugzeuge : von 1918 bis heute[1]

General characteristics

  • 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}[citation needed]
  • 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}[citation needed]
176 kW (236 hp) Walter W.IV (A.11}[citation needed]
  • Propellers: 2-bladed fixed-pitch propeller

Performance

  • Maximum speed: 216 km/h (134 mph, 117 kn)
240 km/h (150 mph; 130 kn) (A.11}[citation needed]
  • 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}[citation needed]
  • Rate of climb: 3.82 m/s (752 ft/min) (A.11}[citation needed]
  • 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}[citation needed]

Armament

See also[edit]

Related development

Aircraft of comparable role, configuration and era

Related lists

References[edit]

  1. ^ Tschechoslowakische Flugzeuge : von 1918 bis heute (in German (some English captions)) (1st ed.). Berlin: Transpress : VEB verlag fur Verkehrsween. 1987. pp. 166–167. ISBN 3344001213.CS1 maint: unrecognized language (link)

External links[edit]