Swift S-1
Appearance
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 4 seconds). Larger tips are available to increase the span to 15m. 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
Comparable aircraft
References
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
Wikimedia Commons has media related to Swift S-1.
- ^ a b ""SWIFT" S-1". marganski.com. Retrieved 30 January 2019.
- ^ "Swift S-1". www.sagach.ch (in German). Retrieved 30 January 2019.
External links