title: Let LF-109 Pionýr
text: # Let LF-109 Pionýr
  
  The Let LF-109 Pionýr is a glider aircraft developed by Czechoslovak manufacturer Let Kunovice. It was designed as a two-seater training aircraft and the first flight was performed in March 1950. The plane features a simple and robust design of a fabric-covered steel tube fuselage and has good flight characteristics. In total, about 470 aircraft were built.
  
  ## Specifications
  
  General characteristics
  
  * Crew: one
  * Capacity: one passenger
  * Length: 7.770 m (25 ft 5.90 in)
  * Wingspan: 13.470 m (44 ft 2.32 in)
  * Wing area: 20.200 $m^2$ (217.431 sq ft)
  * Aspect ratio: 8.98
  * Airfoil: 9% maximum thickness
  * Empty weight: 250 kg (551.2 lb)
  * Gross weight: 440 kg (970.0 lb)
  
  Performance
  
  