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VOLUME I Multinational Maritime Tactical Instructions and Procedures

VOLUME I Multinational Maritime Tactical Instructions and Procedures

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will tend to operate in as silent an Emission Policy as possible. It is therefore necessary for the OTC to provide<br />

as much guidance as possible to the ship prior to its taking up station to avoid unnecessary electromagnetic<br />

(EM) emissions which may reveal its presence. The following areas should be addressed in<br />

appropriate messages/orders.<br />

(1) The policy on contact reporting frequency.<br />

(2) The relative importance of stationkeeping versus contact holding.<br />

(3) The degree of freedom allowed the towed array ship with respect to EMCON in order to prosecute<br />

his contacts.<br />

(4) Additional assets available to help prosecute contacts <strong>and</strong> the means of obtaining them.<br />

(5) The OTC’s assessment of the tactical situation, together with a summary of the positions of<br />

friendly, neutral, <strong>and</strong> hostile shipping, should be transmitted to the TAS ship as frequently as possible.<br />

(6) Anticipated changes to PIM <strong>and</strong> the time the TAS ship is to reposition with respect to it.<br />

(7) NOT RELEASABLE<br />

9107 STATIONING OF TOWED ARRAY UNITS<br />

The selection of a station for a TAS ship is based on the following considerations:<br />

a. Own Force Noise. The reduction of force noise levels reaching a towed array is an important<br />

element in increasing its detection envelope. For this reason, all units operating near a towed array ship<br />

should institute measures to reduce their radiated noise levels.<br />

NOT RELEASABLE<br />

b. Reaction Time. Towed array ships may be stationed ahead, astern, or on the flanks of a force.<br />

Regardless of the relative position chosen, such ships should be stationed sufficiently far from the force to<br />

allow the OTC time to react to detections made by the TAS ships. The actual distance will depend on:<br />

(1) Whether the expected threat is equipped with missiles, torpedoes, or a mixture of both.<br />

(2) Whether the threat is from nuclear or diesel-electric submarines.<br />

(3) The type of localization to be employed.<br />

(4) The time to complete localization.<br />

NOT RELEASABLE<br />

(5) Detection envelopes. These will vary for different types of TAS.<br />

MTP 1(D), Vol. I<br />

9-5 CHANGE 2

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