User Guide

FIRE CONTROL: WEAPON STORES

From here you can view the inventory of the weapons still available in your racks and those

currently loaded in your tubes.

RADAR

Radar uses high frequency radio waves that are transmitted from the ship and reflected off objects

to determine bearing and range. Bearing and range data, once appropriately marked, is then sent

to the TMA Station and Navigation map for analysis. Use the radar to detect surface contacts, land,

and low-flying objects.

RADIO/ESM

The Radio is your submarine’s link with the outside world. Messages may be received at any point

in the mission and can include additional tasking or key intelligence updates. It is important to

come to periscope depth and raise the radio antenna or deploy the wire at regular intervals during

your mission.

The Electronic Support Measures (ESM) system is also available at this station.This passive system

detects electromagnetic transmissions from other ships when the ESM mast is raised above the

surface of the water. In addition to detecting the direction and signal level of radar transmissions

from other ships, ESM also compares these signals to a database and identifies the source of the

transmission.

PERISCOPE/STADIMETER

With the periscope you can detect and track contacts visually.You can also photograph a contact

through the periscope for use in classifying the contact and determining its range and course with

the Stadimeter.The Stadimeter can only be reached from the Periscope Station.

The Stadimeter accesses a library of known surface platforms and allows you to match the photos

you take through the periscope with one in the library.With the exception of the contact’s speed, all

information necessary for an accurate firing solution can be determined with the Stadimeter.

UNDER ICE DISPLAY

In addition to High Frequency Active sonar, which is useful for locating mines and for avoiding ice,

ships also carry equipment especially designed to assist with locating variations in ice thickness.

This is important when searching for an area that is safe to surface when under ice.The use of the

Under Ice Displays to locate polynyas is discussed here. Directions for surfacing under the ice are

found in Special Operations and Procedures/Under Ice Operations on p. 152.

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