Udet U 12
| Udet U 12 flamingo | |
|---|---|
 Airworthy replica of the U 12 |
|
| Type: | School and sport aircraft |
| Design country: | |
| Manufacturer: | |
| First flight: |
April 7, 1925 |
| Number of pieces: |
approx. 240 |
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The Udet U 12 Flamingo was a popular German sports and training aircraft of the 1920s and 1930s.
history
Hans Henry Herrmann , chief designer and partner of Udet Flugzeugbau GmbH in Munich, designed the U 12 as a single-legged, tensioned double - decker in wood construction with a rectangular fuselage cross-section. As drive a used seven-cylinder - radial engine Siemens-Halske Sh 11 to 96 hp. A more powerful Siemens Halske Sh 14 engine was installed later .
The successful first flight with Ernst Udet in the cockpit took place at Easter 1925. Series production began soon after in Munich-Ramersdorf. In 1926 the Udet company was taken over by the Bayerische Flugzeugwerke due to financial difficulties , but they resumed production of the "Flamingo" in Augsburg. The largest holders in Germany were the branches of the German Aviation School (DVS) in Schleissheim, Braunschweig and Warnemünde. But the aircraft was also very popular in other flight schools. The best known "Flamingo" was the red D 822 from Ernst Udet. With this he flew on various flight days in Germany and Austria, but also in the USA.
In Austria only a few “Flamingo” built in Germany were used. Most of the "Flamingo" used there were built under license in Austria as U 12O and U 12S .
In Hungary both U 12s built in Germany and aircraft manufactured under license by Manfréd Weiss flew. Machines were also exported to Latvia, Estonia and Lithuania, as well as China, Italy and Sweden. A / S Christine Backman in Riga owned a license for the reproduction of the Baltic States .
A total of about 240 U 12s were produced, of which about 30 were made by Udet Flugzeugbau in Ramersdorf and 150 as BFW U 12s in the Bavarian Aircraft Works in Augsburg. The rest was made under license abroad.
Versions
- U 12a - beginners trainer aircraft with Siemens-Halske Sh 11 .
- U 12b - aerobatic version with a more powerful Siemens-Halske-Sh-12 -nine-cylinder radial engine.
- U 12b - project with smaller wings and Siemens-Halske-Sh-12 -nine-cylinder radial engine.
- U 12d - beginners training aircraft with Siemens-Halske Sh 12 .
- U 12e - project of a racing aircraft version with Siemens-Halske Sh 12 .
- U 12e - project of a seaplane version with double floats.
- U 12O - Austrian version.
- U 12S - Austrian version with tubular steel hull.
Military users
-
Austria
- Federal Army : 20 from 1927 to 1938
-
Hungary
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Received aircraft
On December 17, 2004, a replica of the Udet U 12 started its maiden flight in Oberpfaffenhofen. The machine with the registration D-EOSM has been under repair since a take-off accident in August 2013, so that currently (July 2015) only the fuselage is on display at the Schleissheim aircraft yard .
Another replica was created by the association “Rhönflug Oldtimer Segelflugclub Wasserkuppe” and has been flown since 1994.
Technical specifications
| Parameter | U 12a | U 12b |
|---|---|---|
| Conception | Trainer aircraft | Sport plane |
| crew | 1-2 | |
| span | 10.00 m | |
| length | 7.50 m | 7.40 m |
| height | 2.80 m | |
| Wing area | 24.00 m² | |
| Empty mass | 525 kg | 550 kg |
| Payload | 275 kg | 250 kg |
| Takeoff mass | 800 kg | |
| Wing loading | 33.3 kg / m² | |
| Power load | 10.0 kg / hp | 7.3 kg / hp |
| drive | an air-cooled 7-cylinder radial engine Sh 11 with 70 kW (95 PS) |
an air-cooled 9-cylinder radial engine Sh 12 with 92 kW (125 PS) |
| Top speed | 140 km / h | 145 km / h |
| Cruising speed | 115 km / h | 120 km / h |
| Landing speed | 75 km / h | |
| Climb performance | 2.3 m / s | 2.8 m / s |
| Summit height | 3700 m | 3800 m |
| Range | 450 km | |
See also
literature
- Marton Szigeti: Udet U 12 Flamingo . In: Aviation Classics . No. 3/2015 . Motor Presse, Stuttgart, p. 48 ff .
- Heinz A. F. Schmidt: Historical Aircraft I . Transpress, Berlin, p. 82 .
Web links
Individual evidence
- ↑ a b The aircraft of Udet Flugzeugbau GmbH, Olaf Bichel. Bavarian Airplane Historian V.
- ↑ Udet U 12 Flamingo. In: collections, propeller planes. Deutsches Museum, accessed on July 11, 2015 .