Engineering:Swift S-1
| Swift S-1 | |
|---|---|
| |
| 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 | 1991–1997 |
| 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.
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.
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)
Gallery
Swift concludes its aerobatic display at Old Warden, England
Georgij Kaminski' demonstration flight on the 90th anniversary of the gliding sport of Russia. S-1 Swift glider.
The Swift Aerobatic Display Team at Kemble Battle of Britain Weekend 2009. A Swift S-1 is performing continuous rolls while towed by a Piper Pawnee
Comparable aircraft
- Celair GA-1 Celstar
- MDM-1 Fox
- PZL Bielsko SZD-59
References
- ↑ 1.0 1.1 ""SWIFT" S-1". http://www.marganski.com.pl/eng/html/A-ENG/gliders/ENG-SWIFT%20PAGE.htm. Retrieved 30 January 2019.
- ↑ "Swift S-1" (in German). http://www.sagach.ch/Deutsch/flugzeuge/swift.htm. Retrieved 30 January 2019.
External links
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