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Encyclopedia > Junkers Jumo 210
Jumo 210
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Jumo 210

The Jumo 210 was Junkers Motoren's first production gasoline aircraft engine, produced just before the start of World War II. It produced about 650hp in common versions, and can be considered a counterpart of the Rolls-Royce Kestrel in many ways. Although originally intended to be used in almost all pre-war designs, rapid progress in aircraft design quickly relegated it to the small end of the power scale by the late 1930s'. Almost all aircraft designs switched to the much larger Daimler-Benz DB 600, so the 210 was produced only for a short time before Junkers responded with a larger engine of their own, the Junkers Jumo 211. Image File history File links Jumo-210. ... Image File history File links Jumo-210. ... For the Prussian/German landowning classes, see junker. The name Junkers (IPA: /ˈjunkeɺs/) is well known in connection with aircraft, which were produced under this name for the Luftwaffe during World War II. In particular the Ju 87 Stuka and Ju 52 Tante Ju were common symbols of the Nazi... To meet Wikipedias quality standards, this article or section may require cleanup. ... Combatants Allies: Poland, British Commonwealth, France/Free France, Soviet Union, United States, China, and others Axis Powers: Germany, Italy, Japan, and others Casualties Military dead: 17 million Civilian dead: 33 million Total dead: 50 million Military dead: 8 million Civilian dead: 4 million Total dead: 12 million World War II... The Kestrel was a 700 hp (520 kW) V-12 aircraft engine from Rolls-Royce, their first cast-block engine and the pattern for most of their future piston-engine designs. ... The Daimler-Benz DB 600 was a German aircraft engine built during World War II. It was a liquid-cooled inverted V12, and powered the Messerschmitt Bf 110, Heinkel He 111 among others. ... The Jumo 211 was an inverted V-12 aircraft engine, Junkers Motorens primary aircraft engine of World War II. It was the direct competitor to the famous Daimler-Benz DB 601 and closely paralleled its development. ...


Development of the Jumo 210 started in 1931 under the designation L10. The L10 was Germany's first truly modern engine design, featuring three valves per cylinder, an inverted-V layout, a supercharger as standard equipment, and a cast cylinder block. The 210 was odd in that the cylinders were machined into a block along with one side of the crankcase, two such parts being bolted together side-by-side to form the engine. Normal construction techniques used three parts, two cylinder blocks and a separate crankcase. A supercharger (also known as a blower) is an air compressor used to compress air into the cylinders of an internal combustion engine. ...


The L10 was first ran in static tests on October, 22nd 1932. With the official formation of the RLM in 1933, engine naming was rationalized with Junkers receiving the "200 block", the L10 becoming the 210. Type approval was achieved in March 1934, and it first flew on July 5th 1934 on a Junkers W33. The design had initially aimed for 700hp, so there was some disappointment in the industry. Nevertheless almost all German aircraft designs of the era were based on the 210, which is why they were so small compared to other country's efforts. Reichsluftfahrtministerium (Reich Aviation Ministry / German Air Ministry / German Aviation Administration) Note: If you are looking for the RLM-GL/C list, please go to List of RLM aircraft designations The Reich Air Ministry (Reichsluftfahrtministerium or RLM), was a German civil service organization in charge of development and production of aircraft... 1933 (MCMXXXIII) was a common year starting on Sunday (link will take you to calendar). ...


Initial production of the 610hp Jumo 210A started in 1934. This model was quickly replaced by the 635hp 210B and 210C, differing only in the propeller gearing. Both added a new supercharger for improved performance, along with a waste gate to avoid overboost. The B model was geared at 0.57 for high-speed use, while the C model was geared at 0.62 for slower flying speeds. These models were in turn replaced by the 640hp 210 D and 210E, which had the same gearing as the B/C. A new two-speed supercharger resulted in the Jumo 210Da/Ea which had higher takeoff power. A supercharger (also known as a blower) is an air compressor used to compress air into the cylinders of an internal combustion engine. ...


The Jumo 210G was the world's first engine with direct fuel injection, developed by Dr. Lichte. The Jumo system used a small pump piston positioned beside each of the main cylinders, driven off the crank shaft. The injector used a simple check valve to prevent internal pressure from blowing back into the fuel line, and the pump was timed to inject at the proper point in the intake cycle. Inclusion of the injection system is said to have increased takeoff performance by about 50hp, which is why it quickly became a feature of almost all German engines. Jumo 210Ga had a different supercharger gear ratio. The airscrew drive was 0.57. The G model became the most built subtype of the Jumo 210 and was used on the Bf 109, He 112, Me 110, and Junkers Ju 87. (Bf 109 was the official Reichsluftfahrtministerium designation, though some late_war aircraft actually carried the Me 109 designation stamped onto their aircraft type plates. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... The Messerschmitt Bf110 (later Me110) was a twin-engine heavy fighter in the service of the Luftwaffe during World War II. History Based around the concept of the long-range Zerstörer or Destroyer Fighter the Bf110 enjoyed some success in the Polish and French campaigns. ... Junkers Ju 87 Dive-Bombers The Junkers Ju 87 or Stuka was the most famous Sturzkampfflugzeug (German dive bomber) in World War II, instantly recognisable by its inverted gull wings and fixed undercarriage. ...


Further developments were planned as Jumo 210F and 210H, but never built. In 1935 the Jumo 210H was used for development of the Jumo 211. A Jumo 210S was a special development of the DVL with special regulation mechanisms. Production of the Jumo 210 came to an end in about 1938.


References

  • A History of Aircraft Piston Engines, Herschel Smith
- this source claims the 210 remained in production until 1942

External links

  • http://www.junkers.de.vu
  • http://www.geocities.com/hjunkers/ju_jumo210_a1.htm

  Results from FactBites:
 
Junkers Jumo 210 - Wikipedia, the free encyclopedia (632 words)
The 210 was odd in that the cylinders were machined into a block along with one side of the crankcase, two such parts being bolted together side-by-side to form the engine.
The G model became the most built subtype of the Jumo 210 and was used on the Bf 109, He 112, Me 110, and Junkers Ju 87.
In 1935 the Jumo 210H was used for development of the Jumo 211.
Junkers Jumo 211 - Wikipedia, the free encyclopedia (567 words)
The Jumo 211 was developed by Dr. Neugebauer as scaled-up successor to the earlier Jumo 210.
In 1934, even before the new Jumo 210 had completed its acceptance tests, the RLM sent out a request for a new 1,000 hp-class engine of about 500 kg weight.
Both Jumo and Daimler-Benz responded, and in order to reach service before the new Daimler-Benz DB 600, the Jumo team decided to make their new design as similar as possible to their 210H model, currently in testing.
  More results at FactBites »

 
 

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