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Swift S-1

Type of aircraft From Wikipedia, the free encyclopedia

Swift S-1
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The Swift S-1 is a single seat aerobatic glider manufactured by Polish company Swift Ltd.

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Design and development

Edward Margański, Jerzy Cisowski and Jerzy Makula developed the Swift at Bielsko-Biała from the SZD-21-2b Kobuz 3.[1][2] The prototype first flew in 1991.

The glider is made of glass-fibre epoxy composite. It is very strong (stressed for plus and minus 10g) and manoeuvrable (a roll takes less than 4 seconds). Larger tips to increase the span to 15m were designed but not made. It has a retractable undercarriage.

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Specifications

Data from [1]

General characteristics

  • Crew: 1
  • Length: 6.91 m (22 ft 8 in)
  • Wingspan: 12.7 m (41 ft 8 in)
  • Wing area: 11.8 m2 (127 sq ft)
  • Tailplane area: 1.65 m2 (17.8 sq ft)
  • Fin area: 0.9 m2 (9.7 sq ft)
  • Aspect ratio: 14.3
  • Airfoil: NACA 641412
  • Tailplane airfoil: NACA 631012-63006
  • Fin airfoil: NACA 632015-63012
  • Empty weight: 280 kg (617 lb)
  • Gross weight: 390 kg (860 lb)

Performance

  • Never exceed speed: 320 km/h (200 mph, 170 kn) diving
  • Maximum manoeuvring speed: 228 km/h (142 mph; 123 kn)
  • g limits: +10 g / - 7.5 g
  • Maximum glide ratio: 30:1 at 107 km/h (66 mph; 58 kn)
  • Rate of sink: 0.9 m/s (180 ft/min)
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Comparable aircraft

References

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