109 prop pitch (rpm) and the supercharger

[Crumpp]

'short period' only

Which is where your confusion lies about "constantly changing rpm". If the setting was only allowed for one minute, they you reduce pitch to reach 2600 rpm and coarsen it as speed increases to maintain 2600rpm for ONE MINUTE or a SHORT TIME!!

Given that we know how a variable pitch propeller is operated and the physics of how it transfers power....

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

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

It is a fact that you operate a selectable pitch propeller by managing pitch to maitain the a constant rpm at a desired setting....in this case 2600U/min.

Round and round the mulberry bush, mulberry bush....

round and round

[SlipBall]

Originally Posted by Crumpp

Which is where your confusion lies about "constantly changing rpm". If the setting was only allowed for one minute, they you reduce pitch to reach 2600 rpm and coarsen it as speed increases to maintain 2600rpm for ONE MINUTE or a SHORT TIME!!

Given that we know how a variable pitch propeller is operated and the physics of how it transfers power....

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

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

It is a fact that you operate a selectable pitch propeller by managing pitch to maitain the a constant rpm at a desired setting....in this case 2600U/min.

Round and round the mulberry bush, mulberry bush....

round and round

Very helpful for others who may visit, don't pull all your hair out

[ACE-OF-ACES]

Originally Posted by Crumpp

Absolutely NOTHING about changing rpm constantly......

Actully that is not correct either..

Allow me..

Originally Posted by Ulrich Steinhilper

When we flew at that height, the engine only just gave enough pull and we constantly changed the propeller pitch and RPM to improve the performance. With a flat pitch we could increase the RPM of the engine and get more pressure from the super-charger. Then, by changing the pitch to a coarser setting, we could make up some speed.

Hope that helps you see your errors..

Only question left to answer is if you can admit your errors..

[SlipBall]

Originally Posted by ACE-OF-ACES

Actully that is not correct either..

Allow me..



Hope that helps you see your errors..

Only question left to answer is if you can admit your errors..

So what are you saying here?... Are you saying that the throttle came into play with what the author is describing. Because when the pitch is adjusted, it also adjusts the RPM in the same motion.

[ACE-OF-ACES]

Originally Posted by SlipBall

So what are you saying here?...

Ah, I see where you are confused..

Note that is not a quote of something I said.. That is a quote of what an actual Bf109 pilot from WWII said

Hope that helps!