Hull and aircraft design can reduce wakes and sonic booms by a third.

Evidence

On the other hand, anyone who has watched boats for a while knows that some produce larger or smaller than expected wakes for their speed and size. Some hulls are much more efficient than others. This hints that wakes and sonic booms can be reduced, if not eliminated. Some recent innovations have reduced them by one-third in test aircraft. — Eric J. Heller, Why You Hear What You Hear- An…, 728

Categorization

• XREF: Complements the prior paragraph’s argument that sonic booms can’t be fully eliminated; together they frame the reduction-vs-elimination distinction.