Akaflieg Berlin Charlotte II
| Akaflieg Berlin Charlotte II | |
|---|---|
 Charlotte II on the Wasserkuppe / Rhön 1923 |
|
| Type: | Glider |
| Design country: | |
| Manufacturer: | |
| First flight: |
1923 |
| Number of pieces: |
1 |
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The Charlotte II was a single-seat, tailless glider of the Academic Aviation Group Berlin , which was created using the wing of the "Charlotte" .
construction
The "Charlotte II" was built in the winter of 1922/1923 as the successor to the "Charlotte", which was badly damaged in a crash at the Rhön gliding competition in August 1922. In contrast to this, the aircraft had improved controls exclusively via flaps on the wing. A streamlined wooden fuselage with a central runner and removable stern fin hung under the wing.
use
In addition to participating in the Rhön competitions in 1923 and 1924, Charlotte flew outside of Germany, for example, at the first Austrian gliding competition in Stockerau near Vienna in 1923 and the first Italian international gliding competition in October 1924 in Asiago on the southern edge of the Alps.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 1 |
| length | 4.10 m |
| span | 14.20 m |
| height | 1.50 m |
| Wing area | 19.5 m² |
| Wing extension | 9.4 |
| Glide ratio | |
| Slightest sinking | |
| Empty mass | 133 kg |
| Max. Takeoff mass | 203 kg |
| Wing loading | 10 kg / m² |
| Top speed |
Derivatives
The Charlotte II influenced further designs of tailless sailors: According to plans by Rudolf Schul and static calculations by W. Marczinski, the Magdeburg aviation club built the sailor "City of Magdeburg" in 1930. The "City of Magdeburg" was flown in the 1931 Rhön competition and showed acceptable performance. The span was 14 m and the wing supported with a V-strut had a plywood-clad torsion nose. The NACA profile M-12 was used on the rectangular wing center part . Exterior shutters were strong side set and on the wingtips were elevons and end plates rudder attached.
At the end of 1931 Edmund Kleiner and Wilhelm Bongel built the 14 m glider "Weleda" in Schwäbisch Gmünd . Supported the project from the drug company was Weleda . The flying wing was modified several times and prepared for the 1932 Rhön competition, but did not appear in the list of participants. The control was carried out by elevons and small, only outwardly movable rudder on the wing tips.
Trivia
The contour of the top view of Charlotte was made in 1932 at the suggestion of Akaflieg member Eduard Neumann the club's logo.
See also
literature
- Academic Fliegergruppe Berlin (Ed.): 100 Years of Akaflieg Berlin . Lukas Verlag, Berlin 2010, ISBN 978-3-86732-095-5 .
- Rudolf Storck: Flying Wings . The historical development of the world's tailless and flying wing aircraft. Bernard & Graefe Verlag, Bonn 2003, ISBN 3-7637-6242-6 , pp. 64 .
- Frank-Dieter Lemke, Rolf Jacob: The Academic Fliegergruppen in Germany until 1945 . Part 1. In: Flieger Revue extra . No. March 29 , 2010, ISSN 0941-889X , p. 50-52 .
Web links
- "Charlotte II" in the J2mcL Planeurs glider database, accessed on February 22, 2018
Individual evidence
- ^ Hermann Winter : gliding and slow flight . New ways in sport aviation. Gustav Wenzel & Sohn, Braunschweig 1949, DNB 455698627 , p. 23-28 .
- ^ Carsten Karge: With Charlotte in Veneto . In: Akademische Fliegergruppe (Ed.): Annual Report 2011/2012 . Berlin 2013, DNB 013347667 , p. 27-35 .
- ↑ Werner v. Langsdorff : The glider . 2nd revised edition. J. F. Lehmanns Verlag, Munich 1931, DNB 575531126 , p. 128 .
- ↑ 100 years of Akaflieg Berlin , p. 32f
