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Old 26th December 2016 | 15:19
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GustavoMedeiros
 
Joined: Nov 2016
Posts: 2
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From: Porto Alegre
CG effect on maneuverability

Greetings everyone!

I have a question about the effects of CG position on stability and maneuverability.

I understand that when we have a fwd CG we'd get more stability/higher stick forces to change the acfts attitude. Otherwise, with an aft CG, we'd get better maneuverabiliity and by consequence less stability.

BUUUT, when it comes to engine inop. procedures and we consider controlling the acft around it's vertical axis (yaw), it would be EASIER to control with an fwd CG. The question is: why is it so? I understand the forward CG is more stable, but at the same time, isn't it true that a aft CG would give me lighter forces on the controls? Heard some fellows talk about the arm size from the control surface (rudder) to the CG, what would make things easier for me. But at the same time, why doesn't it stand this way when we consider the elevator surface?

Sorry for writing the New Testament in a question! Thank you.
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