W.Gr 21 rockets in 190D9s?

[GRUNHERZ]

Dora Kommandogerat...

[Crumpp]

Grunhertz,

Your pictures did not come through.

I am getting in touch with some folks who actually have a Dora to find out exactly what the deal is with it's "Kommandogerat".

Crumpp

[Meyer]

Originally posted by GODO
FW-190A3 was the last 190 with not-overridable Kommandogerät.
190D and Ta152 had also an equivalent to the 801D Kommandogerät as well as 109s. I read somewhere that the "mechanical computer" attached to the Doras Jumos was far more advanced than the BMW system. Still trying to find info about the Jumo device.

 

Yep, that was Schwarze man in the LEMB

Further to the Kommandogerate question. No, the 213 had full automatic engine and propellor control which was far better than the BMW KG system. The BMW system was not the be all/ end all that is portrayed! It suffered from design weaknesses and was an over-complex system which was out-performed by the less complex systems of DB and Jumo!! The Jumo 213 had a single-lever power control with automatic propellor. AFAIK it worked better than the BMW system. You can look it up on the NACA history site!


.....The common feature of the German fighter aero-engine controls (post 1942) was the single lever operation. This mode of operation links the engine and the propellor function to one control lever. The DB,Jumo and BMW systems were very different in detail. However, they controlled the engine and propellor with similar functionality. That is, the pilot only had to basically move the "Throttle" lever to adjust the power at all speeds and altitudes, the automatik systems adjusted the mixture, ignition timing, supercharger speed, manifold pressure, engine speed(via prop pitch) and even MW/GM1.
Now, each version of engine had its own particular set-up with variations. If you want to talk about the 213A, it was a good fully-automatic control. The pilot had no input to propellor control, it was linked to the throttle and gave the correct engine speed for the throttle setting, by adjusting blade pitch. If you have thoughts that the bomber pilots were moved to the Dora because of the engine controls,well, sounds unlikely to me.
Maybe the initial 213A in the D-9 gave similar low alt performance to the A-8. However, it was better at high alt and opened the door to spectacular performance with the 213E/F. It also maybe used 213A motors that were available in 44.
Development of the 213 was pushed hard in 44/45. The use of MW was only possible in late 44 when the equipment was produced. The increase in manifold pressure to give 1900PS gave an increase of power upto about 6km and was an intrim upgrade whilst waiting for the development of the MW system and later upgrades.
MW was usually used at lower altitudes to allow the use of higher manifold pressure and therefore, power. I believe it was also used with GM-1 in some late 213 engines.
Hope this helps, I feel that you need lots of info!

@Crumpp, to see the pictures: right click over the image, 'properties' , copy & paste the url.

[Crumpp]

 You can look it up on the NACA history site!

He is comparing a 1942 Kommandogerat.  That is not the same thing as a 1944 Kommandogerat.  

AFAIK it worked better than the BMW system.

And whoever wrote this is not prepared to state for a fact it worked better.  I would say, with more experience and more time to perfect such a complicated device, BMW probably had the edge over Junkers.

Nobody is claiming the FW-190A outperformed the Dora.  The Dora developed roughly the same power (later versions more) with a lot less drag.

Crumpp

[Meyer]

Oh, i think Schwarze man is very well prepared

Btw i forgot to link the topic  http://p069.ezboard.com/fluftwaffeexperten71774frm95.showMessage?topicID=14.topic

[Crumpp]

I know SM.

I am Ketjg26 on the LEMB.  Old nick and it won't let me change it.

http://p069.ezboard.com/fluftwaffeexperten71774frm9.showMessage?topicID=266.topic&index=13

There were over 8 different manuals printed for the Kommandgerat during the FW-190A8's lifecycle!

There were LOTS of improvements to the Kommandgerat.

Crumpp

[GRUNHERZ]

Originally posted by Crumpp
Grunhertz,

Your pictures did not come through.

I am getting in touch with some folks who actually have a Dora to find out exactly what the deal is with it's "Kommandogerat".

Crumpp

Pictures are of the D13 "Yellow 10" W.Nr. 836017 undergoing restoraton..

Here is the whole gallery:

http://detailsite3.tripod.com/d13/d13.htm

[Crumpp]

Pictures are of the D13 "Yellow 10" W.Nr. 836017 undergoing restoraton..

Thanks Grun.

I have seen them before.  Beautiful airplane!

Crumpp

[GRUNHERZ]

Did you find the Kommandogerat pictres towards the bottom?  They are the 2 picures in the thrird row from the bottom of the page.

[Crumpp]

Did you find the Kommandogerat pictres towards the bottom? They are the 2 picures in the thrird row from the bottom of the page.

Yes I have seen them before.  That device corresponds perfectly with the "Ladedruckregelar" which was a automatic hydraulic boost control system.

Crumpp

[GScholz]

I'd really like to have a D-11, 12 or 13 added as a perk ride.

[GRUNHERZ]

Yes I would love to have a D11 D12 or D13  as as perk rides.  

That or the 399mph on the deck late model FW190D9.  This would be a perfect counterpard to the Tempest which would still be much more manouverable and have heavier firepower.

Either way make the icon:  DORA

[Crumpp]

That or the 399mph on the deck late model FW190D9. This would be a perfect counterpard to the Tempest which would still be much more manouverable and have heavier firepower.

I would love to see it AH.  Don't discount the Dora's manuverability.  Maj. Heinz Lang romped all over a Tempest in an RAF post-war tactical trial in a D13.  

Crumpp