VOLUME I Multinational Maritime Tactical Instructions and Procedures

line guide. When ships are formed in a multiple line formation, the line guide is the ship occupying
the station in her own line that corresponds to that of the Guide in the Guide’s line, or, within
any line in which no ship occupies the corresponding station, the ship designated by the OTC.
line of bearing. A line in which ships form in a straight line on a line guide in any direction except
ahead, astern, or abeam.
link (communications). A general term used to indicate the existence of communications facilities
between two points.
localization. The determination of positional information and the movements of a contact.
loose line abreast. A formation in which ships stay within 15º of the Guide or ship indicated relative
to the base course.
loose line of bearing. A line of bearing assumed on the basis of either a true or relative line of
bearing in which ships stay within 15º of the bearing or its reciprocal.
loose line of column. An approximate line of bearing within 15º of column in which distance may
be increased to reduce yawing.
low-probability intercept equipment. An intercept receiver which employs directional antennas
and/or variable frequency and which will not detect a transmission unless frequency, direction,
and polarization are in correct coincidence with the victim at the instant of transmission.
M
magnetic anomaly detector (MAD). A device which detects the presence of magnetic materials
by recording the distortions they produce in the normal magnetic field of the earth.
NOT RELEASABLE
MTP 1(D), Vol. I
main body. Any group of warships and naval auxiliaries, or a single ship escorted by warships
and/or aircraft, and not designated a convoy.
maneuvering interval. When similar ships are formed in a multiple line formation, maneuvering
interval is the sum of the standard distances in the longest line, plus one standard distance; with
dissimilar ships, it is the sum of the standard distances in the longest line, plus the longest standard
distance in any line, including the only ship in a line if the standard distance for that ship is
larger than that of any other ship present.
material torpedo countermeasures. Noise reduction methods, decoys, noisemakers, jammers,
degaussing equipment, and so forth, designed to reduce the effectiveness of torpedoes once they
have been fired.
maximum effective range. The maximum distance at which a weapon may be expected to be accurate
and achieve the desired result.
maximum sonar speed. The maximum speed at which an individual ship can proceed without unacceptably
degrading its sonar performance.
maximum speed. The highest speed at which a ship is capable of proceeding when using full power.
MEADOW. A static submarine haven effective only during the period, and in the area, that Operation
GRASSHOPPER is in effect.
Glossary-14 CHANGE 1