VOLUME I Multinational Maritime Tactical Instructions and Procedures

MTP 1(D), Vol. I
contact report. A report indicating any detection of the enemy.
control. That authority exercised by a commander over part of the activities of subordinate organizations,
or other organizations not normally under his command, which encompasses the responsibility
for implementing orders or directives. All or part of this authority may be transferred or
delegated.
control point (aircraft). A position usually marked by an identifiable object which is given a name
or number and used as an aid to navigation or control of aircraft.
control ship. The ship in a replenishment unit that controls the operation.
convergence zone. The annular zone, which occurs in the deep ocean, where spread sound rays refracted
from the depths arrive concentrated near the surface. The repeated occurrence of these
zones as concentric annuli to several hundred miles from the sound source depends on the refraction
of sound rays at depth and the reflection of these rays at the surface.
convoy. A number of merchant ships or naval auxiliaries, or both, usually escorted by warships
and/or aircraft, or a single merchant ship or naval auxiliary under surface escort, assembled
and organized for the purpose of passage together.
convoy escort. A naval ship(s) or aircraft in company with a convoy and responsible for its protection.
convoy route. The specific route assigned to each convoy by the appropriate routing authority.
coordination. The establishment in operations, according to a changing situation, of an orderly correlation
in time and place of planned actions in order to achieve the best overall result. In the
maritime environment, the term coordination may include certain specified control functions.
course made good over the ground (COG). The direction in which a ship has proceeded, measured
between two geographic positions.
course made good through the water (CTW). The direction in which the ship is proceeding, resulting
from the effect of weather but not the effect of current or tidal stream on the signaled or
base course.
critical angle towed-array system (CATAS). A towed-array system whose depth is dependent
upon towing ship speed and the length and weight of the towing cable only.
cross-over zone. The airspace between a MEZ and a FEZ to separate the two for AAW and air coordination
purposes.
customer ship. The ship in a replenishment unit that receives the transferred personnel and/or supplies.
D
damage control. In naval usage, measures necessary aboard ship to preserve and reestablish watertight
integrity, stability, maneuverability, and offensive power; to control list and trim; to effect
rapid repairs of materiel; to limit the spread of, and provide adequate protection from, fire;
to limit the spread of, remove the contamination by, and provide adequate protection from, toxic
agents; and to provide for care of wounded personnel.
data link. A communication link suitable for transmission of data.
Glossary-6 CHANGE 1