Elevator/stabilizer effectiveness
Hello,
I am studying the JAA ATPL exam Principles of flight and I found a question with a strange answer (Fly Around database).
The question is:
- The center of gravity moving aft will :
Answer :
- Increase the elevator effectiveness.
Well, I thought that the greater the distance between a control surface and the CG, the greater the control surface's effectiveness. However if the CG is moving aft, the distance between the stabilizer and the CG is reduced. Thus the stabilizer effectiveness should be decreased too.
Did I miss something ?
Thank you very much for your help.
Have all a good day,
Emmanuel Cordier.