F1: Help
F2: Command Room
F3: Attack Periscope
F4: Bridge
F5: Navigational Charts
F6: Torpedo Data Computer
F7: Crew and Hull Damage Management
F8: Mission Briefing
F9: Radio Room
F10: Deck Guns
F11: Flak Machine Guns
F12: Free View
`: Stop Sailing
1: Slow Forward
2: 1/3 Speed Forward
3: Standard Speed Forward
4: Full Speed Forward
5: Overdrive Forward
6: Slow Backward
7: Full Speed Forward
7: Full Speed Forward
8: Full Speed Forward
9: Full Speed Forward
9: Full Speed Forward
6: Slow Reverse7: 1/3 Speed Reverse
8: Standard Speed Reverse
9: Emergency Reverse
[: Left Full Rudder
]: Right Full Rudder
': Rudder Back In
S: Surface Up
D: Dive Down
A : Holding Depth
P : Periscope Depth
; : Ventilation Tube Depth
C : Emergency Dive
E : Emergency Surface Surfacing
Z : Quiet Sailing
R : Radio
H : Underwater Listening Device
U : Bridge Observation Telescope
O : Observation Periscope
O : Observation Periscope
B: Binoculars
M: Radio messages
K: Captain's log
F: Primary Flak Machine Gun
T: Secondary Flak Machine Gun 1
G: Secondary Flak Machine Gun 2
I: Weapons Management
Q: Opens selected torpedo bay
W: Closes selected torpedo bay
Y: Switch torpedo tubes
L: Lock view
N: Use guide
V: Increase max/decrease min view
/: Close event view
X: Raise/lower vent tubes
Return: Fire torpedoes
Space: Deck gun fire
Page Up: Raise Attack Periscope
Page Down: Lower Attack Periscope
Insert: Raise Observation Periscope
Delete: Lower Observation Periscope
Ctrl+Page Up/Page Down: Fully Raise/Lower Attack Periscope
Ctrl +Insert/Delete: raise/lower the observation periscope completely
Arrow keys: move the viewpoint
Backspace: pause
Small keypad "-": decrease the time flow
Small keypad "+ ": increase time flow
Shift+Mouse: speed up the view movement
Ctrl+Mouse: slow down the view movement
Shift+F2: wander freely in the Command Center and the Command Tower
Ctrl+P: solve the NVIDIA graphics card particle effect bug
Shift+Page Up/Page Down: Increase/Decrease flare effect (software antialiasing)
Ctrl+Left Mouse Button: (on nautical charts) focus the map on a single point
Shift+F11: Continuous map grabbing, press again to stop grabbing
Ctrl+F11: Single map grabbing