Quick-reference for keys :
*** Function keys :
F1 : Full speed
F3 :
F5 : Moderate speed
F7 :
F9 : Stop
F10 : Reverse
F2 : Periscope up
F4 : Periscope down
F6 : Radar
F8 : FIRE
*** Other commands :
F : Forward view
P : Left view
A : Rear view
S : Right view
L : ( Log ) list of sunken ships
M : ( Mission ) Start a new mission
R : ( Report ) Damage report
C : General map
Q : Map of the current quadrant
T : ( Torpedoes ) Open & Close torpedo doors
D : ( Diesel ) Only if Depth
