aileron flutter !!!! help !!!

[mikegregory]

Hi skypirate . Sorry for sounding dumb . But what exactly do you mean ? Can you explain that ? I'm confused as to what negative angle of attack on the flapperons will actually do/cause ? & what will happen now there in the correct (neutral) position ? Thanks
Mike

[SkyPirate]

ok Mike,I will try ..if your plane, when you bought it,. the previous owner had the flaperons set to a negative AOA then 2 things happen,..1 you get less lift,..2 you get nose up (if W&B is correct),..or if W&B is not correct you get level flight but it takes more power to hold it,..so as soon as you reduce power you get sink and at a higher rate unless corrected with stick, you could be with in limits "Dry" but you mentioned you have the header tank so if W&B was at limit dry,.then most definitely it would be forward of that with header tank full,
I would drain all fluids and remove anything from inside of plane that is not needed for safe flight,..weigh it for "dry weight" then I would fill the tanks and weigh it,.. with tanks full I would do a weight and balance without pilot..then with pilot,,then with pilot and passenger,..and it might seem backwards but then I would drain the tanks and repeat the weight and balances with and with out pilot/passenger..the reason I would do it with fuel first,..any weight you added to the plane for correct W&B with full tanks should keep the W&B with in limits with empty tanks,..if you do it with empty tanks first,..since you have a header tank your forward limit measurement if at max forward limit dry, will change with full forward tank and most likely be forward of max forward limit