ORIGINAL: mr_matt
ORIGINAL: olnico
Here we have a pivot point that is slightly on the unstable side. I believe that it will be fine provided that you guys make sure that THERE IS NO SLOP IN THE CONTROL.
But Oli with all respect, in this day in age of 400 ounce servos, why cut it so close? Move to 18% MAC and never have a worry and only increase the servo load maybe 15% (a guess)
What do you think?
Of course Matt,
17% is a good value but there is no real limit apart from the aft one. If you compute that the power requirements can be met at 15% or even 10% why not ?
The servo load will be increased by an amount depending of the control half span. In fact the servo load is roughly equivalent to drive a control surface that has the control half span along the swept line and which cord is the distance { 25% MAC; pivot point }