Akaflieg Berlin B5
| Akaflieg Berlin B5 | |
|---|---|
|
|
| Type: | Glider |
| Design country: | |
| Manufacturer: | |
| First flight: |
August 1937 |
| Number of pieces: |
1 |
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The B5 was a single-seat, self-supporting middle-decker glider of the Academic Aviation Group of the Technical University Berlin-Charlottenburg .
construction
Designed for long-distance gliding, the main focus of the design by Friedrich Lange and Gotthold Peter was on high cruising speed, maneuverability and easy assembly. The 15-meter-spanning two-part, bent wooden wing with box spar and elliptical floor plan was attached to the fuselage with two quick-release fasteners. The two-part ailerons had Flettner rudders . The narrow wooden hull in shell construction carried a raised pendulum elevator with Flettner rudder trim and a symmetrical double wing as a vertical stabilizer, which formed a split wing when deflected. The spring-loaded landing gear used at take-off was retractable and the landing was made on a wooden runner. The machine was built in by the DVL rented first floor of a factory building in Berlin-Charlottenburg, so that components had to be heaved through the windows.
equipment
The equipment included a removable Askania instrument panel with an electric turn indicator , artificial horizon , variometer , speedometer and altimeter , compass and a clock.
use
The aircraft registered with D-4-603 was awarded a third prize for its design at the 1937 Rhön competition and took part in the target range glider competitions in 1937 and 1938.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 1 |
| length | 6.15 m |
| span | 15.00 m |
| height | 1.24 m |
| Wing area | 11.00 m² |
| Wing extension | 20.45 |
| Wing profile | Gö 549 |
| Glide ratio | 30.5 at 76 km / h |
| Slightest sinking | 0.67 m / s at 64 km / h |
| Payload | 85 kg |
| Empty mass | 140 kg |
| Takeoff mass | 225 kg |
| Top speed | 228 km / h |
See also
literature
- Frank-Dieter Lemke, Rolf Jacob: The Academic Fliegergruppen in Germany until 1945 . Part 1. In: Flieger Revue extra . No. 29 , March 2010, p. 52 f .
Web links
- B5 in the J2mcL Planeurs glider database
- FFG Berlin B5 in Luftarchiv.de
Individual evidence
- ^ Hans Joachim Wefeld : 75 years of Akaflieg Berlin . Academic Fliegergruppe Berlin, Berlin 1995, p. 60 .
- ↑ Glider B 5 . In: Aviation . No. August 16 , 1937, p. 416-418 .
- ^ Hans Joachim Wefeld: 75 years of Akaflieg Berlin . Academic Fliegergruppe Berlin, Berlin 1995, p. 48 .
- ↑ a b Helmut Schneider (Ed.): Airplane type book . 5th revised, expanded edition. Herm. Beyer Verlag, Leipzig 1944, p. 282 .
- ↑ Peter Riedel: About sunny expanses . In: Experienced Rhön history . 2nd Edition. Volume III, 1933-1937. Motorbuch, Stuttgart 1990, ISBN 3-613-01047-X , p. 206 .
- ↑ Glider B 6 . In: Aviation . No. August 16 , 1938, p. 418 .
