Discussion
Statement I: Constraint analysis is performed after the structural design is complete.
Statement II: The wing area and installed thrust that constraint analysis produces are inputs to almost everything downstream.
In the light of the above statements, choose the correct answer.
Answer: B
Correct answer: Statement I is incorrect but Statement II is correct
Statement I is incorrect: constraint analysis is one of the earliest steps of conceptual design, not something done after the structure is complete.
Statement II is correct and is precisely the reason. The wing area and installed thrust that the analysis produces are inputs to almost everything downstream - structural layout, fuel volume, weight estimation, engine selection, drag build-up - so they must be established before any of that work can begin. The analysis is revisited as estimates improve, but it leads rather than follows.
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