Waterspace Management Flashcards
Joint Action Area (JTAA)
A waterspace management area in which a single friendly submarine is operating in
coordination with air and/or surface forces. Air and surface ASW attacks are prohibited throughout the JTAA
unless a NOTACK area or a submarine-generated search area has been established.
NOTACK
A stationary safe zone established by the submarine for protection against friendly attack while
other ASW forces engage submerged contact(s) within a joint action area or submarine generated search area
SGSA
Submarine generated search area
A temporary tactical operating area within a joint action area
that is established by a submarine commanding officer to allow other ASW forces to attack subsurface contacts
outside of the SGSA without further contact with the submarine. Also referred to as a “BULLPEN.”
Submarine Safety Lane
A special case of submarine action area consisting of a set of lanes, either geographically
defined or superimposed on a grid. They are activated either wholly or in part by the submarine operating
authority (SUBOPAUTH) and are used by the SUBOPAUTH to ensure the safety of submarines
transiting to and from assigned areas.
ASWFA
ASW free area
A waterspace management area in which no friendly submarines are operating,
and there are no restrictions on the use of antisubmarine weapons.
Stovepipe
A column of water made available to a submarine assigned to a deep stratum that allows it access to
the surface. Typically used in conjunction with prevention of mutual interference plans during exercises involving
friendly and opposition force submarines.
Submarine Action Area
A waterspace management area that contains one or more friendly submarines that
are the only units that may use ASW weapons within that area.
Compensatory Allowance
Measures applied to ensure that a weapon does not enter an area containing a friendly
submarine
Weapons danger zone plus aircraft/sub navigation error
Nixie
towed torpedo decoys used on US and allied warships. It consists of a towed decoy device (TB-14A) and a shipboard signal generator. The decoy emits signals to draw a torpedo away from its intended target.
The Nixie attempts to defeat a torpedo’s passive sonar by emitting simulated ship noise, such as propeller and engine noise, which is more attractive than the ship to the torpedo’s sensors.
MFTA
SQR-20
3″ diameter array that can be towed behind surface ships. It is an active and passive sonar sensor, meaning it can listen silently for enemy submarines, or can send out a an active sonar ping and listen for the echoes. MFTA provides several enhancements over the existing AN/SQR-19 TACTAS, including better coverage, better detection capability, and better reliability. Bearing ambiguity resolution without turning
SQS-53
surface-ship hull mounted sonar that has both active and passive operating capabilities providing precise information for ASW weapons control and guidance.
TACTAS
Tactical Towed Array Sonar (SQR 19 or 20)
