TM 55-1905-223-24-14
GLOSSARY
Section I. ABBREVIATIONS
A. .. ..................................................................................................................................
Ampere
AC (ac) . ..........................................................................................................................
Alternating Current
A1, A2 ..............................................................................................................................
Reference Designators
DC (dc). ...........................................................................................................................
Direct Current
DS.... ...............................................................................................................................
Incandescent Lamp
F ... ..................................................................................................................................
Fuse
Hz ..................................................................................................................................
Hertz
LCU ................................................................................................................................
Landing Craft Utility
S .. ..................................................................................................................................
Switch
TB ........ ..........................................................................................................................
Terminal Board
V ... . .................................................................................................................................
Volt(s)
Section II. DEFINITION OF UNUSUAL TERMS
Aft or After
-
At, near, or toward the stern.
Azimuth Circle
-
Device that can be fitted to the Bearing Repeater to take terrestrial or celestial bearings.
Binnacle
-
Compass stand made of nonmagnetic material, serving to house, illuminate and protect
the Magnetic Compass. Component of the Gyro Compass, serving to house, illuminate
and protect the gyro element.
Bulkhead
-
Partition dividing the interior of a vessel into compartments.
Caged
-
Spring loaded action like a ball point pen, suspending Gyro from operation.
Gimbal Ring
-
Device consisting of two rings mounted on axes at right angles to each other so that an
object, such as a compass, will remain suspended in a horizontal plane between them,
regardless of the motion of the vessel.
Heel
-
To list over or lean to one side.
Helm
-
Mechanism by a which a vessel is steered.
List
-
Inclination of a vessel to one side; as a list to port or a list to starboard.
Lubber's Line
-
Line on a compass that is exactly parallel to the vessel's centerline.
Glossary-1
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