109 prop pitch (rpm) and the supercharger

[Robo.]

Originally Posted by Crumpp

It is all about maintaining optimum pitch and rpm.

As you coarsen the pitch to reacquire the rpm, you will notice an increase in performance.

That is how it works.

I understand how it works, no need for bold writing mate. My point was that it's not all about setting your engine for certain (optimal) rpm and keeping it that way - but especially at the altitudes, you would need to work with it constantly to get more speed. This is all relevant to the thread title which is about supercharger and rpm in 109s.

Originally Posted by Crumpp

In the quoted cases, they are setting the engine to a limited over boost and coarsening the pitch to maintain rpm.

To mainatin speed / performance. Not rpm... it's all explained in detail in the above quote...