User Guide
Moving the pointer to the handles on either side of the periscope activates
the Rotate Left or Rotate Right controls. Left-clicking when these commands
are visible, turns the periscope in the appropriate direction, through 360
degrees. At the top of the screen is the Relative Bearing Indicator, which
shows the bearing of any object viewed in the periscope relative to the sub-
marine’s heading.
The right handle of the periscope is also used to control the zoom factor of
the periscope. When the pointer nears the right side of the periscope, it
changes to the Zoom command. Left-clicking while this command is active
increases the magnification through the settings 1x, 2x, 4x, and 8x.
Pressing the “Z” key achieves the same result. The periscope can be lowered
or raised from any station by pressing Alt-P.
When first activated, the periscope screen shows maneuver controls to
either side. These controls operate in the same manner as their counter-
parts at the Gauges station. The manual helm allows the submarine to be
steered, the course can be set using the compass, and the submarine can be
submerged or surfaced using the depth control. The Ship Identification
Manual can be viewed at this station using the button at the bottom of the
screen. Left-clicking on the Torpedo button or pressing the “T” key brings
up the Position Keeper panel for the local TDC.
SILENT
HUNTER
28 COMMANDING THE SUBMARINE: Up Scope
Engine Status Indicator
The “Christmas tree,” so named for the red and green lights it features,
indicates which of the diesel engines are engaged in propelling the subma-
rine or charging the batteries used to drive the electric motors. The panel
contains one green light and one red light for each engine on the subma-
rine. When a diesel engine is being used to charge batteries the red light is
on, when the engine is being used to drive the submarine the correspond-
ing green light is lit.
Voltage and Fuel Gauges
The state of battery charge is shown on the voltage gauge. When the elec-
tric motors are on line, the voltage level drops as batteries are discharged.
When the batteries are being charged using the diesel engines, one or more
of the red charging lights are lit and the needle climbs back to full charge.
It can take several hours running on the surface to recharge batteries. Most
of the submarines in S
ILENT
H
UNTER
can run submerged for many hours at
low speed, but running at flank speed while submerged will exhaust battery
capacity quickly.
The fuel gauge shows the volume of diesel fuel remaining, with a digital
counter for the number of miles available from the remaining fuel. Note: The
amount of fuel carried by submarines was large enough to allow for extended
missions, but was not inexhaustible. If the submarine runs out of fuel, the
only margin of safety lies in the charge level on the batteries. If the subma-
rine runs out of fuel in enemy waters, it is likely to be destroyed or captured.
Flooding Gauge
This gauge indicates the level of danger that flooding represents is in the
event that the submarine takes damage which ruptures the pressure hull so
that the submarine begins to take on water. The great danger of flooding is
that the submarine may gain so much weight that the motors cannot lift it
to the surface again.
Up Scope (or Periscope Station)
Left-clicking on the periscope shaft, or pressing F2, raises the periscope for
viewing the surface, navigation, or fire control. The periscope cannot be
employed at depths below 65 feet, and is automatically retracted when div-
ing below that depth. The periscope also retracts automatically when
destroyed or damaged.
SILENT
HUNTER
27 COMMANDING THE SUBMARINE: Gauges Station










