Nielsen & Winther Type AA

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Type AA
Role Single-seat fighter
National origin Denmark
Manufacturer Nielsen and Winther A/S
First flight 21 January 1917
Introduction 1917
Retired 1919
Primary user Danish Army
Number built 6

The Nielsen & Winther Type AA, also known as the Type AA, was a Danish fighter aircraft of the 1910s.


The first Danish fighter aircraft to be conceived and built, the singe seat Type AA was of wooden construction and powered by a 90 hp Thulin rotary engine. It was armed with two guns.

Operational history[edit]

The first flight took place on 21 January 1917. The plane was tested again in 1918, this time with synchronising gear for its single Madsen machine gun. During 1917 six Type AA aircraft were delivered to the Danish Army, though they saw little service and were retired in 1919 owing to engine unreliability.


  • Type AB
    • Two-seat reconnaissance version, prototype
  • Type AC



Aircraft on display[edit]

Specifications (Type AA)[edit]

Data from Green[2]

General characteristics

  • Crew: 1
  • Length: 6.60 m (21 ft 8 in)
  • Wingspan: 7.70 m (25 ft 3⅛ in)
  • Height: 2.8 m (9 ft 2¼ in)
  • Empty weight: 350 kg (772 lb)
  • Gross weight: 550 kg (1212 lb)
  • Powerplant: 1 × Thulin rotary engine, 67 kW (90 hp) each


  • Maximum speed: 150 km/h (93 mph)



  1. ^ Ogden, Bob (2009). Aviation Museums and Collections of Mainland Europe. Air Britain (Historians) Ltd. p. 79. ISBN 978 0 85130 418 2. 
  2. ^ Green, William; Gordon Swanborough. The Complete Book of Fighters. Godalming, UK: Salamander Books. p. 430.