From: A Lion uses all its might to catch a Rabbit
What you are seeing are 3 different settings, and section 6.2.3 TASK FORCE SPEED may be of more help.
Full and Cruise speeds lock the TF into moving at those speeds regardless of mission.
When the TF is set at Mission speed, it will move according to its mission, which most of the time is to cruise.
6.2.3 TASK FORCE SPEED
Every TF has a calculated Maximum TF Speed and a Cruising TF Speed. The Maximum TF Speed is the maximum number of hexes the TF may move during a movement resolution phase, if it is attempting to move at maximum speed. There are only a few situations where a ship will move at maximum speed, as ships generally move at their cruising speed to minimize fuel usage and operational damage. These speeds are calculated by taking the appropriate speed of the slowest ship in the TF. The TF speed in hexes is equal to the slowest ship’s speed in knots times number of hours in a pulse (12) and then divided by number of miles in a hex (40), and is rounded up or down based on the computer’s calculations. Regardless of how fast it is, no TF may move more than 9 hexes per phase.
All ships are given a movement allowance of at least 1 hex, even when out of fuel or badly damaged. This has been done for playability purposes to avoid the need to tow ships to port.
Over time, a TF will move the right number of hexes for it’s speed, but some pulses it will move 1 hex more than others (e.g. a TF with a speed of 10 will move 4 hexes 1 out of every 3 turns). This speed applies to both 12 hour movement pulses. So on the turns that the TF has a speed of 3, it will move 3 in both the day and night phases (6 total for the day), while on turns it moves a speed of 4, it will move 4 in both the day and night phases (8 total for the day).
Also look at 6.2.13 SHIP ENDURANCE
< Message edited by Admiral DadMan -- 9/11/2009 2:40:15 AM >