Hi all,

I have a BME Yak-54 with a DA-50cc, 22x10 prop. My problem is whenever I attempt to Hover from a Harrier the wings will start rocking from side to side violently, so I keep fighting them with no luck.

What coud be my problem? Too small diameter prop? To much/too little throw on elevator/ail? too nose heavy?

Any help would be much appreciated.

Thanks,

David