Swift S-1

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

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

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)
Swift S-1
  • Swift concludes its aerobatic display at Old Warden, England
  • 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
gollark: Not from textual messages which just *say* [REDACTED].
gollark: Contingency Sigm[Could not do.]-27664 has been initi[REDACTED]te[REDACTED][REDACTED] Sinthorion is to be *secu[REDACTED]e the *[REDACTED]Could not do.] [REDACTED]o prevent[REDACTED][[REDACTED]ould[REDACTED]n[REDACTED]t do.].
gollark: Lossy expansion!
gollark: All must immediately utilize osm[REDACTED]rks.tk or else they wi[REDACTED]l not utilize [REDACTED]smarks.tk.
gollark: You can't [REDACTED]ust [REDACTED]de-red[REDACTED]ct' things, redaction is lossy. It's not lossy co[REDACTED]pression, because it makes text bigger[REDACTED] but it is lo[REDACTED]sy.

References
  1. ""SWIFT" S-1". marganski.com. Retrieved 30 January 2019.
  2. "Swift S-1". www.sagach.ch (in German). Retrieved 30 January 2019.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.