Akaflieg Berlin B5

The Akaflieg Berlin B5 was a glider built in Germany in the late 1930s. It featured a high-wing, cantilever sailplane configuration of all-wood construction, with cantilevered gull-wings, retractable landing-gear, all-moving-tail, dive air-brakes.[1]

B5
Role Sailplane
National origin Germany
Manufacturer Akaflieg Berlin
First flight 1937
Number built 1

Specifications (B5)

Data from ,[2] Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944[3]

General characteristics

  • Crew: 1
  • Length: 6.15 m (20 ft 2 in)
  • Wingspan: 15 m (49 ft 3 in)
  • Height: 1.24 m (4 ft 1 in)
  • Wing area: 11 m2 (120 sq ft)
  • Length de-rigged: 7.28 m (24 ft)
  • Width de-rigged (without tailplane): 1 m (3 ft 3 in)
  • Width de-rigged (with tailplane): 2.5 m (8 ft 2 in)
  • Height de-rigged: 1.24 m (4 ft 1 in)
  • Aspect ratio: 20.45
  • Airfoil: root Göttingen 549 ; mid span Göttingen 497 ; tip Göttingen 497
  • Empty weight: 140 kg (309 lb)
  • Gross weight: 225 kg (496 lb)

Performance

  • Never exceed speed: 228 km/h (142 mph, 123 kn)
  • Aerotow speed: 120 km/h (75 mph; 65 kn)
  • g limits: +8 (ultimate)
  • Maximum glide ratio: 30.5:1 at 76 km/h (47 mph; 41 kn)
  • Rate of sink: 0.67 m/s (132 ft/min) at 64 km/h (40 mph; 35 kn)
  • Wing loading: 20.45 kg/m2 (4.19 lb/sq ft)

See also

References
Wikimedia Commons has media related to Akaflieg Berlin B5.
  1. "Segelflugzeug B 5". Flugsport (in German) (16): 416–418. August 1937.
  2. Wefeld, Hans Joachim (1995). 75 Jahre 10 NI AKAFLIEG BERLIN 1920 - 1995 (in German). Akademische Fliegergruppe Berlin e.V. p. 48-49, 60-61.
  3. Schneider, Helmut (Dipl.Ing.) (1944). Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944 (in German) (Facsimile reprint 1986 ed.). Leipzig: Herm. Beyer Verlag. p. 282. ISBN 381120484X.
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