When operating at greater than headway speed what minimum distance must PWC maintain from another boat or?

Rules of the road

International / Inland

Rule 2

Responsibility

"Rule of good seamanship"

(a) Nothing in these rules shall exonerate any vessel, or the owner, master, crew therof, from the consequences of any neglect to comply with these rules or of the neglect of any precaution which may be required by ordinary practice of seaman, or by the special circumstances of the case.

(b) In construing and complying with these rules due regard shall be had to all dangers of navigation and collision and to any special circumstances, including limitations of the vessels involved which may make a departure from these rules to avoid immediate danger.

Pure and simple, if the situation were reversed, how close do you really want a vessel passing you "at a greater than headway speed"?