109 prop pitch (rpm) and the supercharger

[Robo.]

Originally Posted by Crumpp

Exactly....

As the speed increases, they will have to coarsen pitch to maintain rpm.

So you're saying (again!) that they were constantly changing the rpm to maintain rpm?

On a 109, if you touched the rpm lever either way (up or down), the rpm changed. Simple as that.

You didn't have to 'reaquire' rpm in level flight after you accelerated (e.g. by overreving the engine for a short while). It was where you set it and it didn't go anywhere unless you touched it again. The comparsion with the CSP is not entirely right as the propeller blades won't adjust themselves. You adjust them by moving that Drehzahl lever. So after you accelerate, you need to coarsen up the propeller pitch, that much is correct, but your rpm will drop and stay where they are after you let the lever go. You start slowing down again after a while because of the low rpm / supercharger action (you can go all the way down to coarse for good speed in game) at which point you go to finer pitch again (fiddling with the rpm that is, not mainaining it) to accelerate a bit and get a bit of a boost from the supercharger again. Rinse and repeat.

Maintaining rpm = I am flying at 6km altitude and I don't touch the rpm lever.

It's interesting to see how you're trying to twist everything to prove that you've been actually right. I don't mind you doing that, it's actually quite funny.