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 TM 55-1905-242-14
0008 00
Anchor Light
The anchor light is an all-around white light, mounted at the very top of the mast.
Masthead Light
The masthead light is a white light, mounted near the top of the mast, but lower than the anchor light. The masthead light
shows a 225 degree arc from right ahead, to 22.5 degrees abaft the beam, port and starboard.
Not Under Command (NUC) Light
Two pairs of all-around red lights, mounted one above the other, make up the NUC lights. The lights are configured so that
they provide all-around illumination, despite obstruction by the mast.
Towing Light
The towing light is a yellow light, mounted on the mast above the stern light. The light shines through a 135 degree arc
extending 67.5 degrees from right aft on each side of the vessel.
Stern Light
The stern light is a white light mounted low on the mast. The light shines through a 135 degree arc extending 67.5 degrees
from right aft on each side of the vessel.
Side Light
Two side lights are provided on the vessel. The lights are mounted to the aft corners of the pilothouse top, port and
starboard. The port side light is red, the starboard side light is green. The lights shine through a 112.5 degree arc extending
from right ahead, to 22.5 degrees abaft the beam, on the respective side.
Navigation Horn
The navigation horn, mounted to the pilothouse bulkhead, starboard, is used to announce the vessel's intentions and to signal
during conditions of limited visibility. The horn is powered by the 24 Vdc electrical system and controlled by a pushbutton
switch in the pilothouse.
Global Positioning System (GPS)
The global positioning system uses data received from satellites to accurately determine the vessel's position and other
navigational data. The GPS is powered by the vessel's 24 Vdc electrical system through the Comms Nav Aids Distribution
Box. The GPS is hand held, and when removed from its mount on the pilothouse chart table, is battery powered. When
installed into its mount, the GPS receives power from the 24 Vdc electrical system and may be interfaced with the radar, the
digital compass, and the Digital Selective Calling (DSC) radios through the interface and switch switchbox.
Radar
The radar system permits the LCM-8 Mod 2 to locate aids to navigation, land masses, other vessels, and other objects even
at night or in limited visibility conditions. The radar antenna, located on the pilothouse top, sends and receives radio beams
to locate objects, and displays its output on a display monitor located in the pilothouse. The radar may interface with the
GPS, magnetic compass, and the DSC radios through the interface and switch switchbox.
Compass
A fluxgate compass provides the coxswain with a readout of the vessel's heading. The sensor for the compass assembly is
mounted on the mast, and the display unit is mounted on the pilothouse console. The compass is powered by the 24 Vdc
electrical system.
0008 00-2
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