
Ship's Speed:  The range of speed available for your ship is -16 to 32 
knots. To change speed from any combat screen, use the following commands:

"Alt-Up arrow" key       Increase speed by 1 knot
"Alt-Down arrow" key     Decrease speed by 1 knot

Ship's Course:  To change your ship's course from any combat screen, use 
the following commands:

"Alt-Right arrow" key    Turn ship to starboard 1 degree
"Alt-Left arrow" key     Turn ship to port 1 degree

NTDS Symbology:  All of the combat screens use symbols to represent 
hostile, friendly or unknown air, surface and, occasionally, sub-surface 
contacts. The symbols are known as NTDS symbology, which is based on the 
Naval Targeting Data System. The symbols are shown in the table below. For
the sensor screens, all symbols are displayed in green. For the Fire 
Control and Area of Operations Screens, the targets are color-coded as 
follows:

Blue:         Friendly target
Red:          Enemy target
Yellow:       Unknown target
White circle: Current hooked target

