Aero A.21

The Aero A.21 was a biplane military trainer aircraft developed in Czechoslovakia from the Aero A.11 reconnaissance-bomber. The aircraft was developed specifically as a night-trainer, to teach Czechoslovakian Air Force pilots instrument flying techniques.

Specifications (A.21)

General Characteristics

  • Crew: two, student and instructor
  • Length: 8.20 m (26 ft 11 in)
  • Wingspan: 12.80 m (43 ft 0 in)
  • Height: 3.10 m (10 ft 2 in)
  • Wing area: 36.5 m² (393 ft²)
  • Empty: 1,080 kg (2,376 lb)
  • Loaded: 1,328 kg (2,922 lb)
  • Maximum takeoff: kg ( lb)
  • Powerplant: 1x Breitfeld & Danek Perun I, 134 kW (180 hp)

Performance

  • Maximum speed: 170 km/h (106 mph)
  • Range: km ( miles)
  • Service ceiling: 6,500 m (21,320 ft)
  • Rate of climb: 141 m/min (461 ft/min)
  • Wing loading: 36 kg/m² (7.4 lb/ft²)
  • Power/Mass: 0.10 kW/kg (0.06 hp/lb)

Related content

Related development: A.11 - A.12 - A.22 - A.25 - A.29 Comparable aircraft: Designation sequence: A.18 - A.19 - A.20 - A.21 - A.22 - A.23 - A.24

 

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