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Match each configuration choice in List I with its principal motivation in List II.

List I

A. High wing on a freighter

B. Wing-mounted podded engines

C. Folding wingtip

D. T-tail

List II

1. Bending relief and ground accessibility

2. Low cabin floor for vehicle loading

3. Keeping the tailplane clear of the wing wake

4. Aerodynamic span within a gate box

Select the correct match.

  • A.A-1, B-2, C-4, D-3
  • B.A-2, B-4, C-1, D-3
  • C.A-3, B-1, C-4, D-2
  • D.A-2, B-1, C-4, D-3

Answer: D

Every configuration choice answers a specific problem and brings its own penalties, and the layout that results is a negotiated settlement rather than an optimum. Recognising the motivation behind each is how an unfamiliar aircraft is read.

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