Bug report 2.009 Auto RPM

[EAF_Starfire]

This affect axis aircrafts with AUTO RPM control

 

Aircrafts: Fw190A3, Fw190A5, Bf109F-4, MC202 (possibly all other aircrafts with AUTO RPM control)

 

 

When the RPM control are changed from AUTO to Manual, the control keys are reversed. Pressing the Increase key shows a increase in percentage (%), BUT the actual RPM are decreased, and visa versa.

 

 

 

[Jade_Monkey]

 

This affect axis aircrafts with AUTO RPM control

 

Aircrafts: Fw190A3, Fw190A5, Bf109F-4, MC202 (possibly all other aircrafts with AUTO RPM control)

 

 

When the RPM control are changed from AUTO to Manual, the control keys are reversed. Pressing the Increase key shows a increase in percentage (%), BUT the actual RPM are decreased, and visa versa.

 

This is the bug report area:

 

https://forum.il2sturmovik.com/forum/89-technical-issues-and-bug-reports/

 

Probably best to open a bug report in there.

[Inkophile]

This isn't really a bug. If you actually test the RPM you'll see that 0% pitch means full fine pitch, i.e. higher engine rpm, while 100% means full coarse pitch, i.e. lower engine RPM. That way the manual propeller pitch works in the same "direction" as the engine rpm control works in planes where you set the target rpm with the propeller pitch lever.

 

If anything it is the displayed value that might be confusing, but the actual action applied to the propeller pitch and the resulting change to the engine speed is correct.

[=TBAS=Sshadow14]

I dont have this..

0% = nothing barely moving.
30% = about max pitch at sea level (norma)
and rest for thiner air upto

[Finkeren]

I dont have this..

 

0% = nothing barely moving.

30% = about max pitch at sea level (norma)

and rest for thiner air upto

That absolutely jives with what Inkompetent (who doesn't live up to his name) says. At full fint pitch you should get next to no thrust at all. Edited May 4, 2017 by Finkeren

[Nibbio]

OP may have a point though. Other planes work differently.

 

Pe-2 series 35 comes to mind: in that case 100% is full fine pitch.

 

I think it has to do with the definition of the control: in some cases the control affects RPMs (like the Pe-2) so 100% is maximum.

In other cases the control acts directly on prop pitch (like the 109), so 0% is full fine pitch and 100% maximum coarse pitch.

 

Confusing but formally correct.

Edited May 4, 2017 by Nibbio

[Finkeren]

Pe-2 series 35 comes to mind: in that case 100% is full fine pitch.

I know you understand this, but for planes with constant speed props (like the Pe-2) it is more correct to say that 100% is maximum rpm, nothing about pitch, since the rpm governor doesn't control pitch directly.

[Nibbio]

I know you understand this, but for planes with constant speed props (like the Pe-2) it is more correct to say that 100% is maximum rpm, nothing about pitch, since the rpm governor doesn't control pitch directly.

 

Exactly, it is confusing but correct:

when the control refers to RPM 100% is maximum RPM (which corresponds to fine pitch), when however the control refers directly to prop pitch 100% is maximum coarse pitch, (which corresponds to minimum RPM)

[Riderocket]

Exactly, it is confusing but correct:

when the control refers to RPM 100% is maximum RPM (which corresponds to fine pitch), when however the control refers directly to prop pitch 100% is maximum coarse pitch, (which corresponds to minimum RPM)

The pe-2 uses RPM controls, the 109 uses a different control called Propeller Pitch, changing one doesn't effect the other.

 

So they aren't really the same thing, you could even invert the 109 and it'll leave the pe2 controls the way they are.

 

Me personally, leave all controls the way they are, except for close canopy, I change that from right alt to left alt.

[Finkeren]

Exactly, it is confusing but correct:

when the control refers to RPM 100% is maximum RPM (which corresponds to fine pitch), when however the control refers directly to prop pitch 100% is maximum coarse pitch, (which corresponds to minimum RPM)

I get where the confusion comes from, that's why I'd advice you to look at rpm control and prop pitch control as two completely distinct controls rather than two different versions of the same thing. If you just think that the rpm governor controls rpm (the higher the setting, the higher the rpm) and prop pitch controls pitch angle (the higher the setting, the more the prop "bites" into the air) rather than looking at their indirect results, then it makes more sense.