ORIGINAL: sinjin90
Guess i might have to slow it down, but it looks so good tearing through the air. The elevator slab seems to wimpy made to me i would prefer a solid slab of wood. Might come down to makeing a solid wood one and replaceing theres.
Thanks guys for the imput.
That will not necessarily cure it.
It can on occasion actually exacerbate the problem.
It would be easier to stiffen the elevators by installing a CF strut ( something I do on all of my planes ) and then also stiffening the control surface with a small CF rod inserted lengthwise.
Tighten up all linkages and if possible move or enhance the point where the control horn contacts the surface... e.g. put something under the horn, to make the contact area larger.
Adjust the linkages for maximum mechanical advantage as well.
All of this will act to deaden any harmonics that occur in flight...
Of course your best bet is to slow the plane down, by utilizing a lower PITCH but larger diameter prop.