Very Strange Flight Behavior

[Mvflyer]

I recently upgraded my 300x after a crash - I upgraded to HiTech 65MG servos. When flying upright the Heli flies perfectly - in fact you can literally take your hands off the controls in a hover and it is extremely stable and smooth. When I enter stunt mode it stills flies perfectly when upright.

The trouble begins when I fly inverted - I flipped the heli from an upright tail in hover to a nose-in inverted hover and there is a pronounced roll to the left. I am able to replicate this every time I perform a flip. Luckily the first time this happened I was high enough to catch it and bring the heli under control. I have checked all the servo links, shafts, etc. and there seems to be no mechanical issues or bad vibes - I am at a loss to explain this - my only guess is that the BeastX has gone bad

Any insights or ideas appreciated!

Mvflyer...

[Fooferdoggie]

Always check for vibes. Also make sure the swash is accurate at 90 and your tracking is right on. Inverted shows up problems with accurate setup.

[Mvflyer]

Thanks fooferdoggle. I am going to focus on vibes beginning with replacing the gyro tape. There is much written about this regarding the beastx and tape with some suggesting using something other than the stock tape to tame vibes. I have also heard that you should not zip tie the beastx too tight to the frame. I am going to try reinstalling it this weekend with new tape.


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