I working on my MEI and I'm putting together a brief on the "principles of engine inoperative flight" and I'm getting kind of confused about how weight effects Vmc. This is how I understand it and correct me if I'm wrong (or please offer a simple way to explain it to a student)
The heavier an Aircraft is the lower Vmc will be for several reasons:
More yaw force will be required to lose directional control, AC with greater weight will resist yaw do to the increased energy(inertia) required to swing the nose over and therefore lower Vmc.
For any given angle of bank a heavier AC will have a greater component of weight acting along the wing to counter yawing tendencies. (I'm a little confused here) In the FAA's 5 degrees of bank max. for certification a heavier AC will in effect lower Vmc due to this component of weight in a sideslip.
I know that Vmc deals ONLY with control and is independent of performance but am I missing anything as far as weight and Vmc is concerned?
A million thanks for any help!
The heavier an Aircraft is the lower Vmc will be for several reasons:
More yaw force will be required to lose directional control, AC with greater weight will resist yaw do to the increased energy(inertia) required to swing the nose over and therefore lower Vmc.
For any given angle of bank a heavier AC will have a greater component of weight acting along the wing to counter yawing tendencies. (I'm a little confused here) In the FAA's 5 degrees of bank max. for certification a heavier AC will in effect lower Vmc due to this component of weight in a sideslip.
I know that Vmc deals ONLY with control and is independent of performance but am I missing anything as far as weight and Vmc is concerned?
A million thanks for any help!