Siemens & Halske Sh 11
The Siemens & Halske Sh 11 is a German aircraft engine from the 1920s. Its use was mainly in the training and sport aircraft of that time.
development
The seven-cylinder Sh 11 engine was developed in 1925 by Siemens & Halske in Berlin-Siemensstadt together with the five and nine-cylinder versions Sh 10 and Sh 12 . With this engine series, the company used cylinders with attached heads made of light metal for the first time to improve the cooling properties . After the in-house test runs, the engines went to the DVL in Berlin-Adlershof in autumn 1926 , where they passed the type test, which included 150-hour runs under full load. After the successful completion of the tests, the Sh 11 was granted type approval and the engine was put into series production. This ran until 1927 and comprised 220 pieces.
In 1927 some Sh 11s with a cylinder bore enlarged to 150 mm were tested under the designation Sh 11a , from which a year later the basic version of the successful Sh 14 was developed.
construction
The Sh 11 is an air-cooled Siebenzylinder- four-stroke - radial engine . Low over which the provided with cooling ribs steel cylinder liner pulled down ribbed cylinder heads placed from cast light metal. The combustion chamber is hemispherical.
use
- Albatros L 68
- Arado S III
- BFW-3
- Dietrich DS I
- Dietrich DP II
- Dietrich DP IX
- Dornier Do A
- Focke-Wulf S 2
- Focke-Wulf A 16
- Focke-Wulf GL 18
- Greyish S 1
- Heinkel HD 32
- LFG V 40
- LFG V 58
- Messerschmitt M18
- Messerschmitt M21
- Raab-Katzenstein class 1
- Raab-Katzenstein RK 2
- Udet U 10
- Udet U 12
Technical specifications
| Parameter | Data |
|---|---|
| length | 814 mm |
| width | 1028 mm |
| height | 1028 mm |
| drilling | 100 mm |
| Hub | 120 mm |
| Total displacement | 6.6 l |
| compression | 5.6 |
| Starting power | 96 hp (71 kW) at 1750 rpm |
| Nominal power on the ground |
86 hp (63 kW) at 1575 rpm |
| Continuous performance on the ground |
84 hp (62 kW) at 1500 rpm |
| Dry weight | 148 kg |
| Power to weight ratio | 1.54 kg / hp |
| Displacement | 14.55 hp / l |
| Fuel consumption with continuous power |
230 hp / h |
| Lubricant consumption at continuous output |
12 g / PSh |
literature
- Kyrill von Gersdorff, Kurt Grasmann: aircraft engines and jet engines . In: German aviation . Bernard & Graefe, Munich 1981, ISBN 3-7637-5272-2 , pp. 46 ff .
- Helmut Stützer: The German military aircraft 1919–1934 . E. S. Mittler & Sohn, Herford 1984, ISBN 3-8132-0184-8 , p. 234 .