VOLUME I Multinational Maritime Tactical Instructions and Procedures

MTP 1(D), Vol. I
B
barrier combat air patrol. A patrol of fighter aircraft employed between a force and an objective
area as a barrier across the probable direction of enemy attack. Used as far from the force as control
conditions permit, to give added protection against raids along the most direct approach routes.
barrier line. The line formed by a series of static devices or mobile units arranged for the purpose of
detecting, denying passage to, or destroying enemy submarines.
base course. A reference course or direction desired to be made good when evasive steering is being
carried out.
base speed. The speed resulting along the base course when evasive steering is being carried out.
bearing. The horizontal angle measured clockwise from a reference direction to a specified
direction.
blind bombing zone. A restricted area (air, land, or sea) established for the purpose of permitting
air operations unrestricted by the operations or possible attack of friendly forces.
bomb lines. Lines designated over land areas by ground forces which can be identified easily by terrain
features in order to delimit attacks by friendly aircraft.
brevity code. A code which provides no security but which has as its sole purpose the shortening of
messages rather than the concealment of content.
NOT RELEASABLE
cardinal points. The directions North, South, East, and West.
C
carrier air group. A group of aircraft squadrons placed under a single command for administrative
and tactical control of operations from an aircraft carrier.
cavitation speed. The speed for an individual ship at which propeller blade cavitation is the predominant
factor in the ship’s acoustic signature.
CCG. The grid (Cartesian coordinate) used for rapid reporting of position in a form compatible with
ADP systems (see Chapter 2 for detailed description).
chaff. Strips of frequency-cut metal foil, wire, or metallized glass fibre used to reflect electromagnetic
energy, usually dropped from aircraft or expelled from shells or rockets as a radar countermeasure.
chain of command. The succession of commanding officers from a superior to a subordinate
through which command is exercised. The chain of command establishes the interdependencies
which exist at various levels between the superior and his subordinates. Command functions
may be exercised at any one of these levels. The organization (task or type) adopted for the
forces employed automatically defines the chain of command.
chainsaw. A two-phase AAW tactic designed to provide threat detection and engagement at extended
ranges from the Battle Group.
Glossary-4 CHANGE 1