Swift S-1
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| Swift S-1 | |
|---|---|
 |
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| Role | Aerobatic glider |
| Manufacturer | Swift Ltd. |
| Designer | Edward Marganski and Jerzy Cisowski |
| First flight | 6 August 1991 (proof of concept glider: 11 January 1991) |
| Primary users | Jerzy Makula see European and World Glider Aerobatic Championships for further users |
| Produced | 1991- |
| Number built | 30 (+ proof of concept glider) |
| Developed from | SZD-21 Kobuz |
The Swift S-1 is a single seat aerobatic glider manufactured by polish company Swift Ltd.
Contents |
[edit] Design and development
Edward Margański 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 4 seconds). Larger tips are available to increase the span to 15m. It has a retractable undercarriage.
[edit] Specifications
Data from[citation needed]
General characteristics
- Crew: 1
- Length: 6.91 m (22 ft 8 in)
- Wingspan: 12.7 (41 ft 8 in)
- Height: ()
- Wing area: 11.8 m2 (127 sq.ft.)
- Airfoil: NACA 641412
- Aspect ratio: 14.3
- Empty weight: 280 kg (617 lb)
- Loaded weight: 390 kg (860 lb)
Performance
- Maximum speed: 287 km/h (178 mph)
- sink rate: 0.9 m/s (177 ft/s)
- glide ratio: 30.0 (at 127 km/h)
- Tail area: 1.65 m²
- Tail airfoil: NACA 631012-63006
- Vertical Empennage Area: 0.9 m²
- Vertical Empennage Airfoil: NACA 632015-63012
- Manoeuver Speed Va: 228 km/h
- Diving Speed Vd: 320 km/h
- Max Lift/Drag Ratio: 30.0 @ 107 km/h
- Minimum Speed: 73 km/h
- Load Factors: +10 g / - 7.5 g
[edit] See also
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Wikimedia Commons has media related to: Swift S-1 |
[edit] Comparable aircraft
[edit] References
- ^ Margański & Mysłowski: Swift S-1 - accessed 2008-03-20
- ^ Swiss Aerobatic Gliding Association: Swift S-1 (in German) - accessed 2008-03-20
