Discussion
The sonic boom overpressure reaching the ground from a supersonic aircraft depends most strongly on
Answer: C
The near-field pressure signature coalesces during its descent into the familiar N-wave, and how strong it arrives depends on how much volume and lift the aircraft distributes over how much length, and on how far the wave has travelled. Stretching the aircraft and flying higher both soften it, which is the basis of current low-boom design.
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