Sportinė Aviacija LAK-20

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Role Open Class sailplane
National origin Lithuania
Manufacturer AB Sportinė Aviacija

The LAK-20 is a Lithuanian Open Class two-seat sailplane produced by Sportinė Aviacija.

Design and development[edit]

The LAK-20 is an Open Class double seat sailplane with a wingspan of 23-metres or 26-metres. Made out of modern composite materials, it features a T-tail and retractable landing gear. The wings are slightly swept forward and interchangeable outer wing panels are provided to enable it to fly with a wingspan of either 23 metres or 26 metres. The glider is available as the self-sustaining LAK-20T variant or the self-launching LAK-20M variant, both equipped with an engine. The engines used are two-stroke two-cylinder retractable engines from engine manufacturer SOLO.


Production variant, self-sustaining sailplane with a 22 kW (30 hp) two-stroke two-cylinder air-cooled Solo 2350C retractable engine.
Production variant, self-launching sailplane with a 47 kW (64 hp) two-stroke two-cylinder liquid-cooled Solo 2625 02 retractable engine.

Specifications (LAK-20T 26-metre)[edit]

Data from [1][2]

General characteristics

  • Crew: two
  • Length: 8.65 m (28 ft 4.5 in)
  • Wingspan: 26 m (85 ft 4 in)
  • Height: 1.011 m (3 ft 4 in)
  • Wing area: 16.4 m2 (176.5 ft2)
  • Aspect ratio: 41.25
  • Empty weight: 485 kg (1069 lb)
  • Gross weight: 850 kg (1873 lb)
  • Powerplant: 1 × Solo 2350C, 22 kW (30 hp)


  • Maximum speed: 275 km/h (171 mph)
  • Maximum glide ratio: 60


  1. ^ "LAK-20T/M". Retrieved 2012-12-09. 
  2. ^ Solo Kleinmotoren GmbH. "Solo Kleinmotoren GmbH Flugmotoren". Retrieved 2012-12-09.