Discussion
A regional jet is being sized for hot-and-high operations from short runways, cruising at Mach 0.78 over sectors of about 1500 km.
Which wing loading choice best suits this aircraft?
Answer: A
Thin air and a short runway both demand lift at low speed, which points to a large wing for the weight. The cruise penalty is tolerable because the sectors are short and the aircraft spends proportionally less time at cruise than a long-range type.
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