Supply run?

[LukeFF]

Originally Posted by Arclight

AFAIK the reason people stick to 10kts, is because that's the speed used to calculate a subs cruising range. Like "11,000 miles @ 10 knots (surfaced)" for the Gato-class.

11,000 at 10 knots is the best balance between speed and range. Of course you can get better mileage at lower speeds, but it will take that much longer to get to where one needs to go. I've a feeling people "game" this a little too much, because we don't have a limited amount of provisions.