Akaflieg Berlin B8
| Akaflieg Berlin B8 | |
|---|---|
 B8 V2 at the Johannisthal airfield |
|
| Type: | Glider |
| Design country: | |
| Manufacturer: | |
| First flight: |
1939 |
| Number of pieces: |
2 |
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The B8 was a single-seat, self-supporting shoulder- wing glider belonging to the Academic Aviation Group of the Technical University of Berlin-Charlottenburg , which was designed and built in two versions based on the tender for a standard glider for the Summer Olympics in 1940 .
The registrations of the two machines built were D-4-660 (test sample V1) and D-4-694 (V2).
history
The aircraft was created as a result of the request of the International Study Commission for Motorless Flight (ISTUS) for a uniform glider for all participants in the glider competition, which was first planned for the Olympic Games in 1940. Tender conditions included a. the limitation of the wingspan to 15 meters, temporary buoyancy and a cockpit suitable for 1.80 meters tall pilots with back parachutes. Dive brakes had to be able to limit the speed to 200 km / h. Two specimens should be delivered for a comparison flight. The Berliner Akaflieg was asked to participate in the design competition very late, so that there were only five months before the national comparison flight.
construction
The aircraft was designed by Julius Schuck as a cantilevered shoulder-wing decker in wood construction with dive brakes and fabric-covered oars.
equipment
The equipment included a removable Askania instrument panel with an electric turn indicator , artificial horizon , variometer , speedometer and altimeter , compass and a clock.
Versions
- B8 V1: runner and removable chassis
- B8 V2: V-position of the wings adjustable to 0, 2.5 and 5 degrees , fixed landing gear
Technical specifications
| Parameter | Data B8 V1 |
|---|---|
| crew | 1 |
| length | 7.10 m |
| span | 15.00 m |
| height | 1.50 m |
| Wing area | 15.60 m² |
| Wing extension | 14.41 |
| Wing profile | Gö 549 and 535 |
| Glide ratio | 23 at 68 km / h |
| Slightest sinking | 0.70 m / s at 56 km / h |
| Payload | 95 kg |
| Empty mass | 165 kg |
| Max. Takeoff mass | 260 kg |
| Wing loading | 16.65 kg / m² |
| Top speed | 220 km / h |
Comparable types
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
- FFG Berlin B8 in Luftarchiv.de
- B8 in the J2mcL Planeurs glider database
Individual evidence
- ↑ a b c Hans Joachim Wefeld : 75 years Akaflieg Berlin . Academic Fliegergruppe Berlin, Berlin 1995, p. 64 .
- ^ Hans Joachim Wefeld: 75 years of Akaflieg Berlin . Academic Fliegergruppe Berlin, Berlin 1995, p. 52 .
- ↑ a b Helmut Schneider (Ed.): Airplane type book . Handbook of the German Aviation and Accessories Industry. 5th revised and expanded edition. Herm. Beyer Verlag, Leipzig 1944, p. 284 .
