Signalman 1 & C - Historic Naval Ships Association

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to the right of the right column. Internal lanes take anumber composed of the adjacent column numbersless the prefix 0. The left lane is numbered 01, and theright lane takes the number of the right less the prefix0 but with the suffix 0 added.COLUMN CALL SIGNSThe column number is to be used as the collectivecall sign for ships in that column, preceded by theword column.Example:Column zero fourLIGHT REPEATING SHIPSIf the convoy is large, special light repeating shipsmay be designated to relay flashing-light messagesfrom the commodore.GUIDES OF A CONVOYOne ship in the formation will be designated as theconvoy guide. The duty of the guide is to maintainaccurately the course and speed ordered. If the shipsare in a single column, the leading ship will be theguide. If, for any reason, the leading ship falls out ofline, the ship next astern of it becomes the guide of thecolumn.If the convoy consists of two or more columns,one of the column guides also must act as convoyguide. The convoy guide must maintain the course andspeed ordered, and guides of columns must keep theircorrect station on the convoy guide. <strong>Ships</strong> in eachcolumn are to keep station on the guide of theirrespective column.Should the guide be disabled and becomeincapable of acting as guide, the leading ship of thenext column to starboard is immediately to becomeconvoy guide without further orders. If there is nocolumn to starboard, the leading ship of the nextcolumn to port is to become the guide. If the convoyis in any formation other than columns in line ahead,a new guide will be detailed by signal. A shipbecoming guide will immediately hoist her largestmerchant ensign at the masthead.If the commodore has detailed some other ship toact as convoy guide and later wishes to make a furtherchange, he/she will make a signal indicating whichship is to become convoy guide. When this signal isexecuted, the ship that has been acting as guide willhaul down her merchant ensign and cease to act asguide. At the same time, the new guide is to hoist herlargest merchant ensign and become the guide. If thenew guide is the commodore's flagship, execution ofthe signal will indicate that the commodore hasreassumed the guide.The convoy guide and column guides remain thesame if the convoy alters course by any of thefollowing methods:1. By all ships turning simultaneously less than 90°to starboard or port2. By wheeling (altering course in succession)3. By column leaders turning simultaneously, theremainder in successionCHANGES OF THE GUIDETo assist station-keeping in a convoy formed incolumns, the convoy guide is to change automaticallywhen all ships turn simultaneously through 90° or more.If the convoy alters course, with all ships turningsimultaneously exactly 90° to starboard or port,forming line abreast, the port or starboard wing shiprespectively of the new leading line abreastautomatically becomes the convoy guide and withoutfurther orders hoists its largest merchant ensign. Theprevious guides of columns, however, do not changebut become guides in the line abreast. In figure 7-2, ifships turn together 90° to starboard, number 61automatically becomes convoy guide. Numbers 11,21, 31, 41, 51, and 61 remains guide of the respectivelines abreast.If the convoy alters course, with all ships turningmore than 90°, the ship now leading the columnoriginally led by the convoy guide automaticallybecomes the convoy guide. The ships now leading thecolumns become the new guides of their respectivecolumns. Thus, in figure 7-2, if the ships turn togethermore than 90°, number 44 automatically becomes theconvoy guide, and numbers 14, 24, 34, 44, 54 and 64become the new guide of their columns.When a convoy is in a formation other thancolumns in line ahead, it may be desirable for theconvoy commodore to designate certain ships asgroup guides. Such ships are to take charge of theirgroups in cases of emergency and, if necessary, act ontheir own initiative.7-6
TAKING UP FORMATIONWhen forming a convoy, ships should get to theircorrect station as quickly as possible, relative to theguide of the convoy.If the convoy is in columns in line ahead or in aformation involving small groups of ships, eachcolumn/group guide will take station on the guide ofthe convoy and station themselves on the guide of theirown column/group.<strong>Ships</strong> should maintain their station in the formationtheir guide, and should not be influenced by the movementof other ships unless the danger of collision occurs.While forming up, ships are to hoist their convoystation (convoy internal call sign) and keep it flyinguntil all ships are in station.In narrow waters, each ship should make fullallowances for wind and tide so as to pass over the sameground as the leading ship. This will not necessarily beachieved by following the wake of the next ship ahead.COMMUNICATION INSTRUCTIONSLEARNING OBJECTIVES: List and explainthe primary and secondary means of convoycommunications. Explain the use of externalship/shore communication. List theresponsibilities of the master and communicationplan. List pubs used for convoy signals.List day and night signals for open and closedports.The following types of communications areavailable:1. Primary: Radiotelephone2. Secondary: Flashing LightRADIOTELEPHONEThe voice radiotelephone (R/T) procedureprescribed in ATP 2, volume II, is to be used for allvoice radio communication. The convoy commodoreis net control for voice radio communications. As wasstated for allied voice communications, adherence tothe prescribed procedure and good circuit disciplineare essential to being efficient.Phonetic AlphabetWhen necessary to identify any letter of thealphabet, the standard phonetic alphabet is used. Thecorrect pronunciation may be found in theInternational Code of Signals.Numeral PronunciationNumerals, in transmission, are to be spoken in theEnglish language. Only in cases of difficulty is theINTERCO system used.Numerals are to be transmitted DIGIT BY DIGIT.ProwordsThe prowords found in ATP 2, volume II, ingeneral, correspond to those in ACP 125, with thefollowing exceptions:ALARM—This ship has sighted or been attackedby hostile or suspicious forces.KICK—Carry out antijamming procedures.REPEAT—Repeat transmission or portionindicated, or I repeat.CALL SIGNSIndividual ship call signs vary according to thecircumstances in which they are used. Where no otherinstructions have been received, the following rulesapply:1. In harbor, for communications with local harborauthorities, use ship name or international call signs.2. Independently routed ships, see thecommunications supplement of ATP 2, volume II.3. In convoy, ships use their convoy stationdesignations as their R/T and visual call sign. Whentransmitted by R/T, the station designation is precededby the word ship.Special call signs for use within a convoy areshown in figure 7-3.EXECUTIVE MESSAGESExecutive-type messages that are sent over theconvoy radiotelephone net will include the prowordEXECUTE TO FOLLOW immediately after the call,and the text is repeated twice. If there is a delay ofseveral minutes between the transmission and the7-7
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NONRESIDENTTRAININGCOURSEJuly 1996S
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COMMANDING OFFICERNETPDTC6490 SAUFL
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PREFACEBy enrolling in this self-st
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CONTENTSCHAPTERPAGE1. Introduction
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PASS/FAIL ASSIGNMENT PROCEDURESIf y
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CHAPTER 1INTRODUCTION TO VISUAL COM
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Phonetic AlphabetSome of the words
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SPOTTERThe spotter is the most valu
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CLASSIFICATIONCommunications Proced
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CHAPTER 2SIGNAL EQUIPMENTBefore Sig
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Five resistors are connected in par
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Because the lamp contains gas under
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Figure 2-7.—AN/SAT 2 infrared tra
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Figure 2-10.—Power conversion uni
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You were born with the finest optic
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assembly. Take care to keep lubrica
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The following steps are required to
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eye. Each eyepiece is adjustable th
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you may hear the sound of gas escap
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Figure 2-23.—Measuring and taping
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Page 2-24.Figure 2-24.—Completing
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off the remaining tail at this poin
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granted by the officer of the deck
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ADDRESS OF MESSAGEMost messages hav
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Figure 3-3.—Parts of a naval mess
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Figure 3-4.—The precedence of a m
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abbreviated service messages, the B
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Standing alone, prosign C means “
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Voice Call SignsVoice call signs ar
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Figure 3-6.—Numeral pennant call
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SHIPS' BOATS.—The following visua
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types of messages that you will be
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with other civil stations unless it
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Call SignsThe following call signs
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When required, a full answer, consi
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To request repetition of the second
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3. The aircraft should be maneuvere
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the receiving station follows suit
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SECURITYIn the interest of security
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Page 86 and 87: Table4-2.—Prowords—ContinuedPRO
Page 88 and 89: Table 4-2.-Prowords—ContinuedPROW
Page 90 and 91: EXECUTIVE METHODThe executive metho
Page 93 and 94: CHAPTER 5ALLIED FLAGHOIST PROCEDURE
Page 95 and 96: Figure 5-2.—Numeral pennants; spe
Page 97 and 98: More information on the hoisting of
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Page 101 and 102: Example:If a junior commanding offi
Page 103 and 104: The SCREEN pennant is spoken, writt
Page 105 and 106: The letter N is also used for minus
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Page 109 and 110: CHAPTER 6INTERNATIONAL SIGNALINGIn
Page 111 and 112: Flashing light or sound signaling:
Page 113 and 114: CallingThe identity signal of the s
Page 115 and 116: These examples illustrate the conve
Page 117 and 118: Figure 6-1.—Morse signaling by ha
Page 119 and 120: 5. MISCELLANEOUS6. METEOROLOGY—WE
Page 121 and 122: Figure 6-2.—Distress signals.A si
Page 123 and 124: Figure 6-3.—Lifesaving signals (p
Page 125 and 126: Figure 6-3.—Lifesaving signals (p
Page 127 and 128: signal is not hoisted to the dip; i
Page 129 and 130: CHAPTER 7CONVOY COMMUNICATIONSAltho
Page 131 and 132: Ships that pass through the MERZONE
Page 133: Figure 7-1.—Convoy formation grid
Page 137 and 138: RADIOTELEGRAPHRadiotelegraph messag
Page 139 and 140: CHAPTER 8WATCHSTANDING DUTIESVisual
Page 141 and 142: Signalmen must be alert to respond
Page 143 and 144: where persons have fallen overboard
Page 145 and 146: Figure 8-2.—Visual communications
Page 147 and 148: Figure 8-3.—Watch-to-watch invent
Page 149 and 150: SIGNALTable 8-2.—Signals from a S
Page 151 and 152: Figure 8-4.-Vari-color signal illum
Page 153 and 154: Multipurpose LampWhen using the por
Page 155 and 156: Approach ShipThe approach ship main
Page 157 and 158: Figure 8-7.—Transfer-station mark
Page 159 and 160: CHAPTER 9NAVIGATIONAL DUTIESNavigat
Page 161 and 162: possible, then, to obtain relative
Page 163 and 164: distance on a Mercator chart, one m
Page 165 and 166: periodical announces new nautical c
Page 167 and 168: CLASS ABBREVIATION GENERAL DESCRIPT
Page 169 and 170: Sectors may be only a few degrees w
Page 171 and 172: Figure 9-12.—IALA Maritime Buoyag
Page 173 and 174: is used to describe any buoy that i
Page 175 and 176: TopmarksBy day, topmarks are the mo
Page 177 and 178: -Spoil ground marksMilitary exercis
Page 179 and 180: Head-on SituationWhen two ships mee
Page 181 and 182: Figure 9-22.—Pilot vessel, under
Page 183 and 184: Figure 9-24.—Towing vessels less
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Dredging/Underwater OperationWhen a
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Figure 9-28.—Pushing ahead or tow
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INTERNATIONALMAKING WAYINLANDMAKING
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CHAPTER 10HONORS AND CEREMONIESFrom
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When displayed with foreign ensigns
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way do not half-mast the ensign alt
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Figure 10-2.—Personal flags and c
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concerned, or the senior officer pr
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commission that has no flag officer
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BOAT HAILSBoat hails are used durin
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PresidentTable 10-4.—Passing Hono
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termination of the call, ruffles an
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Page 10-19Figure 10-5.—Personal f
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RED CROSS FLAGThe Red Cross (Geneva
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NOTEOn a flagship where the command
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Formulate and coordinate the comman
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such as “This page is unclassifie
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assigned duties. Personnel authoriz
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Precautionary measures must be take
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In setting a combination, numbers s
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have served their purposes, or are
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ehind pictures and radiators, and u
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A person about to be relieved will
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security should holdings fall into
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would be suitable for use as a seco
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These craft are capable of beaching
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CONTROL AREASLine of Departure (LOD
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station by displaying the designate
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ASSISTANT BOAT GROUPCOMMANDER (ABGC
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Figure l2-8.—Beach flags, markers
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Figure 12-9.—Standard flags and i
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a. Ships, Boats, and Landing CraftC
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In addition to megaphone, radio, an
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circle to the beach. The last 1,000
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Transmit the grid position using le
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Figure 12-16.—Arm and hand contro
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Figure 12-16.—Arm and band contro
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completed. At the end of start and
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wingspan provides the final clue fo
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Figure 13-8.—Fuselage shapesFigur
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SURFACE SHIPSThere are many types o
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Figure 13-13.—Classes of cruisers
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Figure 13-16.—Classes of frigates
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Figure 13-19.—Recognition silhoue
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Figure 13-19.—Recognition silhoue
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Figure 13-22.—Modern submarine.on
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Figure 13-24.—Sail placementFigur
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Figure 13-26.—Appearance groups.T
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Deckhouses are not raised. An islan
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Figure 13-32.—Types of king posts
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Figure 13-35.—Types of funnels.Fi
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CHAPTER 14TECHNICAL ADMINISTRATIONV
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the text on a page and improper cla
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From: Communications OfficerTo: All
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APPENDIX IGLOSSARYABEAM—Bearing 9
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PRECEDENCE—The relative order in
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Figure AII-1.—Formation of charac
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Drill 6This exercise contains all t
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Figure AII-2.—Semaphore alphabet
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Drill 2Practice sending and receivi
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APPENDIX IIIREFERENCE LISTChapter 1
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Replenishment at Sea, NWP 14, Chief
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Clearances, 11-4access, 11-6eligibi
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Flashing light procedure—Continue
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Radiotelephone—Continuedgeneral p
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Assignment QuestionsInformation: Th
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1-12. The multipurpose light is des
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1-40. What does an overscore over a
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1-65.1-66.1-67.1-68.1-69.1-70.In vi
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2-13. By which of the following mea
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2-40.2-41.2-42.2-43.What maneuver f
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2-66. What signals are reserved for
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3-12.3-13.3-14.3-15.3-16.3-17.You a
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3-38. What term denotes the positio
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3-63. You observe the following lig
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4-11.4-12.4-13.Your ship is receivi
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4-37.4-38.4-39.4-40.4-41.4-42.The O
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4-64.4-65.Grades assigned to exerci
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