Thanks Kev. From reading that thread it seems the experts are as confused as I was. This confirms my suspicion that unless the person tweaking the FD is familiar with all the technical aspects (sim & real life) they could easily get it all wrong. I think my shot proves that in CFS2 at least - 100% is Full Fine pitch.

Most WWII aircraft had constant-speed airscrews. I'm sure the pitch settings for various stages of flight would be marked on a plate on the panel or on the quadrant itself. All aircraft would use full power/fine pitch for take-off (presumably 100% in CFS2). This would then be reduced as soon as possible for climb to prevent overheating. It would be reduced further for optimum cruise & fuel economy. I'm not sure of the ideal setting for air to air combat.

The power is indicated on the tachometer (rev counter) & the boost gauge. Boost (on RAF aircraft) is measured in + or - pounds per square inch (often referred to as inches), for example: optimum climb for the Spitfire Mk I is 2,850 rpm at +12 lb/sq. in. boost. On the Spitfire Mk IX with the Merlin 66 + 2-stage supercharger, maximum boost is quoted at 3,000 rpm & +25 lb/sq. in. for combat climb and all-out level conditions.



I notice the CFS2 default panels use a manifold pressure gauge which works on a slightly different principle. It indicates the atmospheric pressure (actually suction) inside the intake manifold measured in inches of mercury (In/Hg).

Another thing I'm not sure about is if the M$ flight model takes supercharging into account.

As I've often said before, this is a highly complex subject & here's me pontificating on things I know far too little about. I will need a long lie down in a darkened room to recover from all this. LOL
All you really need to know is what I mentioned several replies ago. Use Fine pitch for full power (take-off & landing). Coarse pitch for nomal flight.

If you really want to know more, read this. http://www.avweb.com/news/columns/182081-1.html
I'm going back to my jets.

Hi, You All

Thanks for the info did not realize that M$ cut costs on shipbuilding.  I will give the link a try

And I agree with you, Hagar.  I can't say enough good things about the guys a AVhistory if it were not for them and many others CFS2 would not be that good of a sim.

I really am thankful for their vurtual MDL's and their DP's are good also.

I guess what I am looking for is the most realism within the framework of the sim.

Keep um flying

B24Guy

...for combat, they would "throw everything forward" in general...unless they were trying to get behind someone at lower speed, etc. If you fly at a good high altitudes, you come across this more, (the need to slow down, etc.)

To takeoff form a carrier, (they did have catapolts back then, for corsair and wildcat (FM-2)..

..Apply the >>Breaks<<, up elevator,rev FULL power for 5 sec, and let go. That should do it.