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Inverted: The second I flip the PT40 over, it wants to take a nose dive. I find that odd since it does not want to climb when upright. It *seems* that applying more power in short bursts brings the nose right back up. [/quote]



A flat bottom wing will always loose altitude when inverted, it dosen't really make any lift that way! The reason you seem to gain altitude when you hit the throttle is that you have downthrust in the engine.

You really ought to think about getting yourself another sport plane.....


Andy