Slingsby Capstan

The Slingsby T.49 Capstan is a British two-seat glider of the 1960s built by Slingsby Sailplanes as a replacement for their earlier Type 42 Eagle. It is a high-winged monoplane of wooden construction, the last two-seat wooden glider built by Slingsby,[1] intended for both training and general club flying. Side-by-side seats for the two pilots are accommodated in an enclosed cockpit with a one-piece perspex canopy. The prototype T.49A first flew in 1961, and it entered production as the T.49B in 1963.[2] Thirty-four Capstans were built,[1] one of which was fitted with an auxiliary engine with the designation T.49C Powered Capstan.

T.49 Capstan
Slingsby T.49 Capstan in 1966
Role Sailplane
National origin United Kingdom
Manufacturer Slingsby Sailplanes Ltd
First flight 1961
Number built 34

Specifications
Capstan BUR/BGA1248 at the Vintage Glider Rally, Camphill, 2011
Capstan T49 Polar Curve, from manufacturer's Handbook

Data from The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II[3] Jane's All The World's Aircraft 1969 [2]

General characteristics

  • Crew: 2
  • Length: 25 ft 4 in (7.72 m)
  • Wingspan: 55 ft 1 in (16.78 m)
  • Wing area: 219.9 sq ft (20.43 m2)
  • Aspect ratio: 13.75
  • Airfoil: Root:NACA 633-620, Tip: NACA 6412
  • Empty weight: 761 lb (345.4 kg)
  • Gross weight: 1,250 lb (567 kg)

Performance

  • Stall speed: 32 kn (37 mph, 60 km/h)
  • Never exceed speed: 117 kn (135 mph, 217 km/h)
  • Rough air speed max: 148 km/h (92.0 mph; 79.9 kn)
  • Aerotow speed: 148 km/h (92.0 mph; 79.9 kn)
  • Winch launch speed: 148 km/h (92.0 mph; 79.9 kn)
  • g limits: +4, 0 at 241 km/h (149.8 mph; 130.1 kn)
  • Maximum glide ratio: 30 at 76 km/h (47.2 mph; 41.0 kn)
  • Rate of sink: 130 ft/min (0.66 m/s) at 70 km/h (43.5 mph; 37.8 kn)
  • Wing loading: 5.7 lb/sq ft (27.7 kg/m2)

Notes
  1. "Slingsby Archived 3 February 2010 at the Wayback Machine", www.sailplanedirectory.com. Retrieved 21 March 2009.
  2. Taylor 1969, p.550.
  3. Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 34–36.

References
  • "Two New Sailplanes". Flight International, 31 May 1962.pp. 867–869.
  • Taylor, J.W.R (ed.) Jane's All The World's Aircraft 1969–70. London:Sampson Low, 1969.
  • Slingsby Sailplanes Capstan T49 Handbook, 1963
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