Spitfire IIa prop pitch

[Crumpp]

The basic principles can be the same, can not argue with this, but the BMW Commadogerät is a bit different device than the 109 VDM auto PP. The only hydraulic equipment in the 109 the landing gear.

190's Commandogerät:

We are not talking about the Kommandogerät, we are discussing VDM hydraulic electric propellers. The KG is a completely seperate device and no, it is not the same as the system found on the Bf-109 and nobody ever said it was either. Both the FW-190 AND the Bf-109 use the same type of VDM hydraulic electric propeller. That is a fact. I am not telling you this out of a passing interest. I happen to know what I am talking about because I deal with the real thing.

Crumpp says:
The propellers are ELECTRIC but are controlled by a hydraulic switch. I think there is confusion over the hydraulic switch. That hydraulic switch is an ELECTRICAL Switch that meters electrical energy based on hydraulic pressure. It changes the electrical current going to the propeller based on the engines oil pressure.

Crumpp says:
That is the function of the Drehzahlregular. If you look at the diagram, you can see where it is mounted to the engine pad and connects with a splined shaft. It requires an oil filter because the engines oil circulates through it and it reads the pressure to meter the amount of current to control propeller rpm, ie...blade pitch.

Do you know who I work for?

http://www.white1foundation.org/

Here is OUR Kommandogerät....

http://www.white1foundation.org/part...andogerat1.jpg

YES IT WORKS..

We are also the North American distributor for Motobende. Do you know who they are?? He specializes in Diamler Benz inverted V's. Schwarze-man works for Dirk.

The seven-cylinder Bramo Siemens SH-14 radial engine was stripped,
overhauled, and rebuilt by Dirk Bende of Motobende Gmbh. This company,
based at Köningswinter-Sassenberg near Bonn, specializes in the overhaul of
German-built World War II-era engines and the remanufacturing of engine parts.

http://quax-flieger.de/sites/default...geSept2011.pdf