Discussion
Match each weight group in List I with its principal driver in List II.
List I
A. Wing
B. Fuselage
C. Undercarriage
D. Furnishings
List II
1. Wetted area and pressure differential
2. Area, aspect ratio and design load factor
3. Cabin configuration and seat count
4. Landing weight and sink rate
Select the correct match.
Answer: D
Correct answer: A-2, B-1, C-4, D-3
Each group is driven by what actually loads it. The wing carries bending, so its weight follows area, aspect ratio and design load factor. The fuselage is a pressure vessel, so wetted area and pressure differential drive it. The undercarriage absorbs the landing, so landing weight and sink rate. Furnishings scale with what the cabin holds - configuration and seat count.
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