I think using auto-takeoff invalidates your tests F4DOA. The auto-takeoff is basically auto-climb. The aircraft will try to reach a pre-set speed that is the best climb speed for that aircraft at sea level in a clean configuration. A heavy craft with full flaps will dive into the ocean before it reaches that clean speed.
When you deploy your flaps, you should decrease you auto-speed setting to match. The tough part would be finding the best climb speed at sea level for each flap and weight configuration. I think it might be better to just try and do it manually.
I think it would be easier to just test stall speed in various configurations. I think that would prove your point without the complications. Maybe a heavy Hog with full gas at various flap settings. For example get 'em all flying along at 500 feet and find the minimum speed at which level flight can be maintained for each flap position.
<S> for doing the tests. You went about this in a very professional manner, and I hope others can learn something from it.
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Lephturn - Chief Trainer
A member of The Flying Pigs
http://www.flyingpigs.com "A pig is a jolly companion, Boar, sow, barrow, or gilt --
A pig is a pal, who'll boost your morale, Though mountains may topple and tilt.
When they've blackballed, bamboozled, and burned you, When they've turned on you, Tory and Whig,
Though you may be thrown over by Tabby and Rover, You'll never go wrong with a pig, a pig,
You'll never go wrong with a pig!" -- Thomas Pynchon, "Gravity's Rainbow"
