Discussion
Assertion (A): The forward and aft centre of gravity limits arise from different physics.
Reason (R): One is set by elevator power and the other by the minimum acceptable static margin.
Select the correct answer from the options below.
Answer: C
Correct answer: Both A and R are true, and R is the correct explanation of A
Both are true and the second states exactly the difference the first asserts. The aft limit is a stability limit, protecting a minimum static margin so that the aeroplane still returns from a disturbance. The forward limit is a control limit, protecting the elevator\'s ability to produce a nose-up moment at low speed. They come from different equations, they are checked against different conditions, and they can be violated in quite different ways.
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