In an earlier post I was looking for help because I couldn't get some of the aircraft off of the ground.
I first noticed the problem when the 172 would not turn up more than 2200 RPM on takeoff. I could get off the ground but it was a long run.
Planes like the Jenny and Vimy were impossible to get airborne because their engines would not turn up enough to acheave flight speed. The would get light, stall, drop a wing and crash.
I found out that It was an altitude problem. I fly out of Marfa, Texas which is at 4880 ft.
Being new to FS9 I was not aware that this sim was altitude sensitive.
Once I became aware of this I did a test and took the Jenny and Vimy to KeY West, Florida where both of them were flyable. Flyable at sea level. not flyable at 4880 equals an altitude problem. Engine horsepower loss due to altitude coupled with a lower air density makes marginal aircraft hard to fly. Easy to fix, add horsepower.
To fix the problem I super tuned their engines using FSACC resulting in a 25% increase in RPM. Problem Solved. The 172 now turns up to 2700 RPM again and I was able to fly both the Jenny and Vimy.
I have to hand it to those guys who made those historic flights in the Vimy. That plane handles like a truck that is stuck in high gear and has no power steering.
Anyway I thought I would share what I learned and how I solved it in case someone else has the problem.
I want to thank those who pointed me in the right direction. That is what these forums do best, share information.
Too Old To Be Flying
But it's too much fun to quit
~~ Dale ~~