Discussion
Which of these is NOT a consequence of moving the centre of gravity aft within the envelope?
Answer: C
Correct answer: The static margin increases
Moving the centre of gravity aft moves it towards the neutral point, so the static margin decreases. The other three do follow: the tail download needed to trim falls, so trim drag falls with it, and with less stability the pitch control forces lighten. Those benefits are what make an aft cruise centre of gravity worth arranging, and the loss of margin is what bounds it.
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