Originally Posted by
A320LGW
How will CG affect asymmetric yaw?
A CG FWD will increase yaw
B CG AFT will reduce yaw
C It is not dependent on CG
D CG FWD will reduce yaw
This is a very ambiguous question. In this context, precisely what is meant by 'yaw'? Is it yawing moment due to the thrust asymmetry ie. an instantaneous value with no yaw rate present? Is it the yaw rate open loop following an engine failure? Is it the moment which must be overcome with rudder in order to stabilise with constant heading? It would be far more meaningful if the question related to the effect of CG position upon Vmca and Vmcl (or equivalent parameters, however named). Vmcg is then a separate case due to the forces and moments from the landing gear.
As someone has already said, it would appear that whoever set the question did not fully understand the subject.