page_title: Naleszkiewicz JN 1
section_title: Specifications
hierarchical_section_title: Naleszkiewicz JN 1 / Specifications
caption_attribution_description: Polski: Szybowiec JN-1, konstruktor stoi obok szybowca
context_page_description: The Naleszkiewicz JN 1 was an experimental tailless sailplane designed in Poland to explore the aerodynamic properties of a proposed powered tailless aircraft. It proved hard to fly and a crash led to its abandonment after only a few months of limited testing.
context_section_description: Data from Naleszkiewicz JN-1 Żabuś II, j2mcl-planeurs
  General characteristics
  Crew: One
  Length: 3 m (9 ft 10 in)
  Wingspan: 17.9 m (58 ft 9 in)
  Height: 1.37 m (4 ft 6 in)
  Wing area: 16.8 m² (181 sq ft)
  Aspect ratio: 19
  Empty weight: 136 kg (300 lb)
  Gross weight: 211 kg (465 lb)
  Performance
  Maximum speed: 130 km/h (81 mph, 70 kn)
  Maximum glide ratio: 16
  Rate of sink: 0.8 m/s (160 ft/min) minimum
caption: The JN 1 glider, the constructor stands next to the glider
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