I was hoping someone would confirm the stability aspect, where the fixed stab would fight the movable stab.
I was also wondering about the elevator effectiveness. I know a all-moving stab is more effective. I was trying to keep the stab surface clean and flying while the all-moving stab would be allowed to stall. What do you think of this characteristic. Would it work this way?
-Q.
Originally posted by Johng
Think about this setup in a turn, requiring some amount of up elevator. Now, the airplane is at an angle of attack, commanded by the moving tailplane. Meanwhile, the non moving tailplane is at an angle of attack, lifting against the moving tailplane to try to restore the plane to straight & level. So, it is creating induced drag, and reducing the effectiveness of the moving tailplane.
Big whoa.