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User:Nimbus227/Sandbox/Do 28

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Nimbus (Cumulus nimbus floats by) 11:36, 24 November 2024 (UTC)

72 kn (133.3 km/h; 82.9 mph)


45 knots; 52 miles per hour (84 km/h)

Specifications

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Data from Ellison 1971, p. 203, The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde[1][2]

General characteristics

  • Crew: 1
  • Length: 25 ft 4.6 in (7.738 m) . Before the rudder alterations, the length was 24 ft 10.8 in (7.590 m)
  • Wingspan: 59 ft 1 in (18.00 m)
  • Wing area: 187.0 sq ft (17.37 m2)
  • Aspect ratio: 18.7
  • Airfoil: Göttingen 549 at root, NACA 2R2 12 at tip
  • Empty weight: 550 lb (249.5 kg)
  • Max takeoff weight: 800 lb (362.9 kg)

Performance

  • Stall speed: 29 kn (34 mph, 54 km/h)
  • Never exceed speed: 98 kn (113 mph, 182 km/h)
  • Rough air speed max: 72 knots; 83 miles per hour (134 km/h)
  • Aerotow speed: 56 knots; 65 miles per hour (104 km/h)
  • Winch launch speed: 44 knots; 51 miles per hour (82 km/h)
  • g limits: +5 -2.5 at 61.5 kn (113.9 km/h; 70.8 mph)
  • Maximum glide ratio: 1:27.5 at 37.5 kn (69.5 km/h; 43.2 mph)
  • Rate of sink: 120 ft/min (0.61 m/s) at 33.5 kn (62.0 km/h; 38.6 mph)
  • Wing loading: 4.3 lb/sq ft (20.9 kg/m2)
  1. ^ Shenstone, B.S.; K.G. Wilkinson; Peter Brooks (1958). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs dans Le Monde (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 115–120.
  2. ^ Bridgman 1956, p. 92