title: Aero A.20
text: # Aero A.20
  
  The Aero A.20 was a biplane fighter aircraft built in Czechoslovakia in 1923. It was evaluated for Czechoslovak Air Force service against Aero's competing A.18 and A.19 designs, a competition that the A.18 won, meaning that this aircraft never entered production, and only a single prototype was ever built.
  
  ## Specifications (A.20)
  
  General characteristics
  
  * Crew: 1
  * Length: 6.6 m (21 ft 8 in)
  * Wingspan: 9.7 m (31 ft 10 in)
  * Wing area: 23.3 $m^2$ (251 sq ft)
  * Empty weight: 784 kg (1,728 lb)
  * Max takeoff weight: 1,080 kg (2,381 lb)
  * Powerplant: 1 × Skoda-built Hispano-Suiza 8Fb V-8 water-cooled piston engine, 220 kW (300 hp)
  
  Performance
  
  * Maximum speed: 225 km/h (140 mph, 121 kn)
  * Service ceiling: 7,500 m (24,600 ft)
  * Rate of climb: 5.88 m/s (1,157 ft/min)
  
  Armament
  
  * Guns: 2× 7.7 mm (0.303 in) Vickers machine guns
  