here a kink to a corsair flight maunal.
http://books.google.com.au/books?id=...age&q=&f=false
As for propeller pitch first thing you have to get your head a round is that you have no direct control over the propeller pitch in the game and once you get over this then you will under stand on how it works and it so simple that it a governor. and what you have to remember that when an engine with 1000 hp it don't take much to over rev and also the amount of work load that it would take to keep the engine at it best RPM the pilot would have no time to dog fight so they made them CSP so the pilot don't have to watch the engine with out fear of over rev and damaging the engine.
the next time you fly a bf 109 watch the Prop Pitch Indicator (the gauge right of the RPM gauge) it will move up and down to try and keep the engine in the best rpm range.the only difference between germany aircraft to the rest aircraft is that you can't control the RPM setting.