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VOLUME I Multinational Maritime Tactical Instructions and Procedures

VOLUME I Multinational Maritime Tactical Instructions and Procedures

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

3313 — 3319 SPARE<br />

3320 DESCRIPTION OF SCREENS<br />

3321 SECTOR SCREEN<br />

a. Description. The center is ZZ or QQ, unless otherwise ordered. Sectors are allocated by<br />

indicating sector boundaries <strong>and</strong> sector depth (separated by a tack) followed by the call sign of the unit<br />

assigned to that sector (see Figure 3-23).<br />

(1) Sector Boundaries are ordered by a group of four numerals. First two numerals indicate the<br />

true bearing of the left boundary in tens of degrees; the second two numerals indicate the true bearing of<br />

the right boundary in tens of degrees.<br />

(2) Sector Depth is also ordered by a group of four numerals. First two numerals indicate the inner<br />

limit <strong>and</strong> the second two the outer limit of the sector in thous<strong>and</strong>s of yards from the screen center.<br />

SCREEN K–ZZ–0307–0510 c/s DD 4<br />

Meaning: DD 4 is allocated a sector 030° to 070° true, depth 5,000 to 10,000 yards from ZZ.<br />

(3) Increments of 5° or 500 yards are ordered by using ANS.<br />

-EXAMPLE-<br />

-EXAMPLE-<br />

SCREEN K–ZZ–20 ANS 33 ANS–02 ANS 07 c/s DD 6<br />

Meaning: DD 6 is allocated a sector 205° to 335° true, depth 2,500 to 7,000 yards from ZZ.<br />

b. Stationing a Main Body or Military Convoy. Ships of a main body or military convoy may<br />

be stationed by the sector method, but the fact that they are a part of the main body or military convoy must<br />

be made clear to the force. Ships stationed by this method carry out r<strong>and</strong>om movements within their<br />

sectors.<br />

c. NOT RELEASABLE<br />

3-40 CHANGE 2

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