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Assertion (A): Manoeuvre and gust load factors are added together to size the structure.

Reason (R): Both are represented as envelopes of load factor against equivalent airspeed.

Select the correct answer from the options below.

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

Answer: A

The assertion is false and the reason is true. The two envelopes are drawn separately and the structure is designed to whichever boundary is outer at each speed. Adding them would be unjustifiably conservative and would produce an aircraft too heavy to be useful.

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