Spitfire IIa prop pitch

[SEE]

All the accounts that I have read from BoB vets flying Spits during the BoB with CSP suggest that it was common practice to set PP for a combat RPM figure of 2650. This would be increased to around 2800 when engaging boost.

I tend to stick with those settings and they seem to work well in CloD in terms of engine management and reliability/performance though I do tweak if necessary to squeeze a bit more out of the Merlin.

[JG53Frankyboy]

Originally Posted by Blackdog_kt

...................................The auto prop on the 109s is not like that however. The final effects are similar to a CSP but the operating principle is not. Instead of using a governor mechanism, they actually "tied" each throttle position to a certain pitch (or was it RPM?) value and further fine-tuned it by adding instrumentation that measured the amount of load on the engine.

..............]

it was RPM..............
a pilot in a german one lever system had to set a specific "Leistungszustand" -
just read the link you self posted. If the ATA would be fixed to a certain pitch....that would be senseless.