The term "flank speed" is sometimes used to refer to a ship's true maximum speed, as distinguished from "full speed" which is the maximum speed without risking damage to the propulsion system. Study this term now because it will be in a Scroll Part II mission. Wikipedia says
that this is "exclusively an American phrase", but the Commonwealth "full speed" doesn't carry the same connotation to armchair naval American ears.
@Admiral Nelson, care to comment?