Aero A.18

The Aero A.18 was a biplane fighter aircraft built in Czechoslovakia in the 1920s. It was a development of the Ae 02 and Ae 04 fighters Aero had designed during World War I, but also borrowed from the more recent A.11 reconnaissance-bomber design.

Aero A.18
Class Aircraft
Type Fighter
Manufacturer Aero Vodochody
Production Period 1920 - 1923
Origin Czechoslovakia
Country Name Origin Year
Czechoslovakia 1923
Country Name Operational Year Retirement Year
Czechoslovakia 1923 1939 View
ManufacturerName Production From Production To Quantity
Aero Vodochody 1920 1923 20 View

The A.18 was designed by Antonin Vlasák and Antonin Husnik and first flew in March 1923; only one of three prototype fighters that Aero flew that year, but this one was selected for production over the A.19 and A.20 that competed with it.

Twenty machines saw service with the Czech air force in the period between the wars.

The A.18B and A.18C were specially modified racing variants that competed in the Czech Aero Club's first two annual air races, in 1923 and 1924 respectively. Both aircraft won their races, and the A.18C is preserved at the Letecke Muzeum in Kbely along with a replica of a standard A.18 fighter.

Role Fighter aircraft
National origin Czechoslovakia
Manufacturer Aero Vodochody
Designer Antonin Vlasák
Antonin Husnik
First flight March 1923
Retired 1939 (due to German invasion)
Status 1 preserved at the Letecke Muzeum
Primary users Czech Air Force
Czech Aero Club
Produced 1920s
Number built 20

General characteristics

  • Crew: 1
  • Length: 5.9 m (19 ft 4 in)
  • Wingspan: 7.6 m (24 ft 11 in)
  • Height: 2.86 m (9 ft 5 in)
  • Wing area: 15.9 m2 (171 sq ft)
  • Empty weight: 637 kg (1,404 lb)
  • Gross weight: 862 kg (1,900 lb)
  • Powerplant: 1 × BMW IIIa 6-cyl. water-cooled in-line piston engine, 138 kW (185 hp)


  • Maximum speed: 229 km/h (142 mph; 124 kn)
  • Range: 400 km (249 mi; 216 nmi)
  • Service ceiling: 9,000 m (29,528 ft)
  • Rate of climb: 9.8 m/s (1,930 ft/min)


  • 2× 7.7 mm (0.303 in) Vickers machine guns

End notes