page_title: Czerwiński CW IV
section_title: Specifications
hierarchical_section_title: Czerwiński CW IV / Specifications
caption_attribution_description: Polski: Rzuty szybowca CW-IV konstrukcji Wacława Czerwińskiego
context_page_description: The one-off, experimental Czerwiński CW IV was a Polish high performance glider and the nation's first two-seater. It set several national records and influenced later Polish designs.
context_section_description: Data from General J. Cynk (1971);Performance samalot (with two crew)
  General characteristics
  Crew: One
  Capacity: One co-pilot
  Length: 8.3 m (27 ft 3 in)
  Wingspan: 18 m (59 ft 1 in)
  Height: 1.93 m (6 ft 4 in) 
  Wing area: 26.9 m² (290 sq ft)
  Aspect ratio: 12.5
  Airfoil: Gôttingen Gô 555
  Empty weight: 220 kg (485 lb)
  Max takeoff weight: 370 kg (816 lb)
  Performance
  Stall speed: 43.5 km/h (27.0 mph, 23.5 kn) minimum speed
  Maximum glide ratio: best 20.9 at 51 km/h (32 mph; 28 kn)
  Rate of sink: 0.7 m/s (140 ft/min) minimum, at 48 km/h (30 mph; 26 kn)
caption: Czerwiński CW IV
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