Discussion
An aircraft of \( 90 \) t on a wing of \( 120 \) m\( ^2 \) has a wing loading of
Answer: B
Converting to force, \( 90\,000 \times 9.81 = 883 \) kN, and dividing by the area gives \( 883\,000/120 = 7360 \) N/m\( ^2 \). Wing loading is among the first numbers chosen in conceptual design, since it drives field length and cruise efficiency in opposite directions.
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