109 prop pitch (rpm) and the supercharger

[bongodriver]

Originally Posted by Crumpp

I did the same for you!!

Unfortunately, you don't have any experience operating a variable pitch propeller to know how it works in the air.

But I do, and I can say he has the right idea....

Originally Posted by Crumpp

Here is how to get extra performance from the Bf-109....

Unfortunately, you don't have any experience operating a Bf-109

Originally Posted by Crumpp

Increase rpm to....

increase RPM you say.....but I thought you said there was no RPM changing?

Originally Posted by Crumpp

And maintain it by:....

1. one had to constantly increase and decrease the propeller pitch.....which makes the RPM change

2. Increasing the pitch would engage the supercharger, which would be run for a short period (i.e. a second or less?)......a second or less he says....hmmm doesn't sound like it's maintained for long then....but then that would make sense as 2600 RPM was only acceptable for a short period.

Originally Posted by Crumpp

All done to maintain 2600 rpm!!!

Oh wait!....were you not paying attention? 2600 RPM was for a 'short period' only....like a second or less.

Originally Posted by Crumpp

Given that we know how a variable pitch propeller is operated and the physics of how it transfers power to the air we know this quote:

Is a general statement without context of time line for rpm.

Not a stumbling block though as I said, we know the physics!!

Since propellers are optimal at a specific speed and rpm....

A general statement without timeline for RPM?....how about a second or less from your own quote?

Originally Posted by Crumpp

We know what the RLM meant in the their instructions and what Ulrich Steinhilper is telling us both fit together without contradiction!!

But sadly not a skill you are blessed with.