So i'm working on a prototype helicopter. The motorhount however seems to resonate when the throttle is between 50% and 70%. Here is the video:

So i made a extra stability-rod, giving the motor mount no room to twist:

So it works, but it's not a charming solution. What kind of motormount should i make, preferbly with 4 arms for stability, that wont have this problem (and wont weigh more than 50 grams :)

Thanks

Mike

But what is it?!