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Dornier Do 11
The Dornier Do 11 was a German medium bomber developed in secret in the early 1930s. It was originally called the Dornier F before being renamed by the Reichsluftfahrtministerium (RLM) in 1933 and was considered a heavy bomber at the time. It came into service in 1932, a continuation of a line of bomber designs going back to the Dornier Do P in 1930 and the Dornier Do Y in 1931. The line would continue to develop with the Dornier Do 13 and Dornier Do 23.[1]
Contents
Design and development
One of the main features the Do 11 tested was a retractable undercarriage, but, due to problems with it, it was often left locked down. The aircraft entered service under the guise of a freight transport, and was used with the German railway in conjunction with Deutsche Luft Hansa, so that it could be shown publicly. What it was actually used for was as a trainer for the still secret Luftwaffe. The aircraft had a number of problems, which resulted in some crashes, and was generally unpopular with pilots. Especially problematic were wing vibrations which resulted in various precautions and modifications. Attempts were made to correct its faults, resulting in the so-called Do 11D, the last model with the Do 11 name. The Do 13 was a "simplified" Do 11 and came next, but had so many problems of its own that it did not fully enter service, with several of the first planes off the assembly line crashing. The later Do 23 corrected many faults of the design, but was still a lackluster aircraft, and was withdrawn from service by 1936 and replaced by superior aircraft that had since been developed. The Do 11 is noteworthy as having served in secret and having been the main heavy bomber of the quietly developing Luftwaffe, if only for a short while. It was also the first to have two large engines as opposed to its predecessors the Y and P, which used three and four engines respectively.[1]
Variants
Data from:'[1]
- Do F
- Prototype of the Do 11 before re-designation by the RLM.
- Do 11C
- First production version powered by 2 Siemens-Halske Sh.22B-2 radial engines.
- Do 11D
- Second production version with a shorter span wing primarily introduced to alleviate extreme vibration of the Do 11C wings.
Operators
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Specifications (Do 11D)
Data from Aircraft of the Third Reich[1]
General characteristics- Crew: 4
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- Wingspan: Script error: No such module "convert".
- Height: Script error: No such module "convert".
- Wing area: Script error: No such module "convert".
- Empty weight: Script error: No such module "convert".
- Max takeoff weight: Script error: No such module "convert".
- Fuel capacity: Script error: No such module "convert".
- Powerplant: 2 × Siemens-Halske Sh.22B-2 9-cyl. air-cooled radial piston engines, Script error: No such module "convert". each for take-off
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- Propellers: 4-bladed fixed pitch wooden propellers
Performance
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- Cruising speed: Script error: No such module "convert". at Script error: No such module "convert".
- Range: Script error: No such module "convert". with Script error: No such module "convert". of fuel
- Service ceiling: Script error: No such module "convert".
- Time to altitude: Script error: No such module "convert". in 7 minutes
- Script error: No such module "convert". in 36 minutes</ul>Armament
- Script error: No such module "convert". in 36 minutes</ul>Armament
- Guns: 3 x manually aimed Script error: No such module "convert". MG 15 machine guns, 1 in each of open nose, dorsal and ventral positions
- Bombs: up to Script error: No such module "convert". of bombs
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See also
- Related development
- Aircraft of comparable role, configuration and era
- Related lists
- List of Interwar military aircraft
- List of military aircraft of Germany
- List of aircraft of the WW2 Luftwaffe
- List of RLM aircraft designations
Notes
References
| 40x40px | Wikimedia Commons has media related to Dornier Do 11. |
- Green, William (2010). Aircraft of the Third Reich (1st ed.). London: Aerospace Publishing Limited. pp. 198–200. ISBN 978-1-900732-06-2.
- Green, William. Warplanes of the Third Reich. New York:Doubleday, 1972. ISBN 0-385-05782-2.
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