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Assertion (A): Relaxed static stability is common on canard-delta fighters.

Reason (R): A canard placed ahead of the centre of gravity is destabilising in pitch.

Select the correct answer from the options below.

  • A.Both A and R are true, and R is the correct explanation of A
  • B.Both A and R are true, but R is not the correct explanation of A
  • C.A is true but R is false
  • D.A is false but R is true

Answer: A

Both are true and the second explains the first. A lifting canard moves the neutral point forward, so the aircraft is deliberately flown with the centre of gravity behind it and stabilised artificially. The reward is trim without a download and a marked gain in manoeuvrability.

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