How soon could a DB-engined FW190 entered combat? (1 Viewer)

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So did DB605 and BMW801 engines. Why is DB603 engine being held to a higher then normal quality standard?
 
Jumo210 entered production during 1935. Junkers began working on larger Jumo211 the same year.

DB600 engine factory was constructed during 1936. Daimler-Benz began working on larger DB603 engine the same year.

Why did BMW require a lengthy vacation before beginning work on next generation air cooled radial?

The development of the BMW 139 (two 132 as a double) was beginning at 1935!
 
So did DB605 and BMW801 engines. Why is DB603 engine being held to a higher then normal quality standard?
I don't know either. But I do know that the RLM did not want to increase production until the problems were solved. Similar story with the BMW 801. The DB 605 is different though: they merely restricted the ata and went on with full scale conversion of 601 to 605.

Kris
 
BMW-801D did not have had reliability issues after October 1942, some reading here.

Mr Tomo Pauk
I didn t expect that you would waste your time reading Williams site
Anyway , BMW801 failures are reported during the entire war
 
I don't know either. But I do know that the RLM did not want to increase production until the problems were solved. Similar story with the BMW 801. The DB 605 is different though: they merely restricted the ata and went on with full scale conversion of 601 to 605.

Kris

Once or twice burned??

Or 4-5 times burned?

How many German engines had been behind schedule and down on reliable power by 1942/43 for the RLM to OK full production on another engine with problems?

Not really picking on the Germans here, British had the Bristol Taurus and lesser extent the Hercules, the Vulture, and Sabre. The Americans had problems with the Wright R-1820 as a fighter engine, the R-2600 had problems, the R-3350 had a host of problems, the R-2160 was a rate hole. The Lycoming and Continental hyper engines and perhaps a few others. By 1942/43 most Air Forces had wised up and were no longer ordering planes or engines off the drawing board or as result of limited tests.
 
Must have been a low priority project. Otherwise they would have switched to BMW801 design before 1939.

No it wasn't, but the cooling problems couldn't be solved and this engine was in the air (1938/1939) different for example as the DB 604!
Through the cooling issues BMW started new with the Bramo 329 and the knowledge of the the BMW 139!
This resulted in the BMW 801.

Edit:
At which time was the first DB 603 in the air?
 
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No it wasn't, but the cooling problems couldn't be solved and this engine was in the air (1938/1939) different for example as the DB 604!
Through the cooling issues BMW started new with the Bramo 329 and the knowledge of the the BMW 139!
This resulted in the BMW 801.

Edit:
At which time was the first DB 603 in the air?
1940.
 
DB603 prototype running during 1937 followed by three years without program funding.

The real question is when DB603 engine could pass a 50 hour test @ 1,539hp without that three year development hiatus. That would give Germany an engine at least as good as BMW801 engines produced during 1941.
 
The 139 was not an 18-cylinder engine but a 14-cylinder. They just used a lot of parts from the 132.

Sorry Denniss to my sources the BMW 139 was a 18-cylinder with two BMW 132. Perhaps my sources are wrong but to my knowledge it was definitely a 18-cylinder.
 
There are conflicting accounts of the BMW 139 - some claim it to be an 18 cylinder engine and others, a 14 cylinder engine. I lean towards the 14 cylinder interpretation and consider the BMW 801 to be a further development with various changes, such as the inclusion of a two speed supercharger. It would be interesting to know to what extent, if any, features from the Bramo 329 were adopted.
 
There are conflicting accounts of the BMW 139 - some claim it to be an 18 cylinder engine and others, a 14 cylinder engine. I lean towards the 14 cylinder interpretation and consider the BMW 801 to be a further development with various changes, such as the inclusion of a two speed supercharger. It would be interesting to know to what extent, if any, features from the Bramo 329 were adopted.

To my knowledge the BMW 139 was a 18 cylinder (double wasp 132) and the Bramo 329 was 14 cylinder.
 
Denniss, would there be an easily accessible source to read more about the BMW 139?
 
According to the motor bible "Flugmotoren und Strahltriebwerke,Gersdorff/Grasmann" the BMW139 (1500PS) was a 14 cyl two row radial. A 18 cyl engine, the BMW140 (projected 2000PS) started development in spring 1937 but was already stopped end of 1937. After acquiring Bramo, BMW cancelled on sept 1938 all running engine developments like BMW 139 and BRAMO 329 and introduced the new number block of the 800 series.
cimmex
 
If the BMW 139 was a 14-cyl, it might have been similar to the Twin Hornet. The BMW 132 or Hornet was 9-cyl but Twin Hornets (and Twin Wasps) had 14-cyl unlike the Double Hornet/Wasp of 18-cyl. So, maybe te BMW 139 could have been similar to the Twin Hornet:
Bore: 5.75 in. (146 mm)
Stroke: 6.00 in. (152 mm)
Displacement: 2,181 in³ (35.7 L)
Length: 76.20 in (1.94 m)
Diameter: 54 in (1.37 m)
Dry weight: 1,565 lb-1,647 lb
Power output: 1,500 hp

Kris
 
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