NP 350(1) ADMIRALTY DISTANCE TABLES ATLANTIC OCEAN covering North Atlantic Ocean South Atlantic Ocean North-west Europe Mediterranean Caribbean Gulf of Mexico FIRST EDITION 1976 REVISED 1978 Published by The Hydrographer of the Navy © Crown Copyright 1976 To be obtained from the Agents for the sale of Admiralty Charts PREVIOUS EDITIONS: Admiralty Distance Tables, Volume I 1st Edition 2nd Edition 3rd Edition 4th Edition Volume II 1st Edition 2nd Edition 3rd Edition Volume III 1stEdition 2nd Edition 3rd Edition Volume IV 1st Edition 2nd Edition 3rd Edition 1912 1915? 1917 1950 1911 1917 1949 1913 1917 1950 1916 1918 1951 Printed in the United Kingdom for UKRO by The Bath Press PREFACE This first edition of Admiralty Distance Tables-Atlantic Ocean has been prepared by Lieutenant Commander C J de C Scott, RN, and contains distance tables for the Atlantic Ocean, North-west Europe, Mediterranean, Caribbean and Gulf of Mexico The tables have been compiled from the latest information in the Hydrographic Department, the distances have been completely re-worked, the areas re-arranged and the information presented in a different format from previous volumes of Admiralty Distance Tables The following volumes, or portions, of Admiralty Distance Tables are superseded Volume 14th Edition 1950 Volume" 3rd Edition 1949, Sections F and G Volume III 3rd Edition 1950, Section J Volume IV 3rd Edition 1951 D W Haslam Rear-Admiral Hydrographer of the Navy Hydrographic Department Ministry of Defence Taunton Somerset TA1 2DN 9th July 1976 Revised and corrected March 1978 CONTENTS Page Preface Contents List of Diagrams Introduction iii iv v vii Part I-North-west Europe Tables: la Arctic Ib West approaches to the British Isles Ic Channel Id North Sea Ie Baltic Entrance If Baltic Sea (except Gulf of Bothnia) Ig Gulf of Bothnia Gazetteer for Part I 19 33 43 49 55 59 Part II-Atlantic Ocean General Notes Tables: Iia North-east Atlantic lib South-east Atlantic IIc South-west Atlantic lid North-west Atlantic lie Trans-North Atlantic IIf Trans-South Atlantic IIg NE-SW Atlantic IIh NW-SE Atlantic IIi Caribbean IIj Gulf of Mexico Gazetteer for Part II 69 71 83 89 95 107 127 137 149 161 167 173 Part 111- Mediterranean Tables: ilia West Mediterranean Ilib East Mediterranean Ilic Adriatic Sea Ilid Aegean Sea IlieBlackSea Gazetteer for Part III 181 189 201 205 215 217 Part IV-Link Explanation Tables: A B C D E F 225 226 227 228 229 230 231 Tables North-west Europe North-west Europe to Gulf of Mexico, Caribbean, Pacific and Indian Oceans North-west Europe to Mediterranean Mediterranean Mediterranean to Gulf of Mexico, Caribbean, Pacific and Indian Oceans Gulf of Mexico, Caribbean and Panama to South-west Atlantic, Pacific and Indian Oceans LIST OF DIAGRAMS Page viii xi xii xiii Shape of the Earth Meridional Parts Mean and Middle Latitudes Great circle track Limits of Tables-Part I Index Chart-Arctic Table Index Chart-West approaches to the British Isles Index Chart-Channel Table Index Chart-North Sea Table Index Chart- Baltic Sea entrance Table Index Chart-Baltic Sea Table Index Chart-Gulf of Bothnia Table chart section following chart section following chart section following chart section following chart section following chart section following chart section following chart section following Index Index Index Index loose chart 128 chart section following page 231 chart section following page 231 Chart-Atlantic Tables-Part II Chart-South Atlantic-Limiting Chart-Caribbean Table Chart-Gulf of Mexico Table Routes Limits of Tables-Part III Index Chart-West Mediterranean Table Index Chart-East Mediterranean Table Index Chart-Adriatic Sea Table Index Chart-Aegean Sea Table Index Chart-Black Sea Table chart section following chart section following chart section following chart section following chart section following chart section following page 231 page 231 page 231 page 231 page 231 page 231 page 231 page 231 page 231 page 231 page 231 page 231 page 231 page 231 ADMIRALTY ATLANTIC DISTANCE TABLES OCEAN INTRODUCTION Selecting a route The routes used for distances in these tables, which are the shortest routes, are not necessarily the quickest or most suitable for a particular passage: other routes may offer more favourable currents or conditions of sea, swell or weather The choice of the best route is described in Ocean Passages for the World and the various volumes of Admiralty Sailing Directions: Routeing Charts show the principal commonly-used routes Essential to this choice, is a knowledge of the shortest distance between the point of departure and destination, which can then be modified as circumstances require It is these shortest navigable distances which are given in these tables Where traffic separation schemes or ship safety fairways exist, they have not necessarily been followed Terminal positions The geographical positions of the places tabulated, together with those of places mentioned in the notes, will be found in the Gazetteer at the end of Parts I, " and III Most of the terminal positions are pilot grounds or anchorages given in Admiralty Sailing Directions, but some are positions on the most commonly-used tracks in the entrances to large ports, rivers, or inlets containing a number of ports Consequently the named terminal position in the tables may be an appreciable distance from the place after which it is named, or from the ship's actual berth Depths Where routes are available for ships drawing 10m, they have been used for the distances in the tables Where there is not this depth, such as in harbour approaches or where there are off-lying shoals, the deepest recommended channels have been used Distances in the tables are given in International Nautical Miles (See paragraph 7b) Notes on routes and distances Each table is preceded by a list of notes applicable to certain distances in that table and indicating, where there is a choice of routes, which route has been used The small figures below the distance figures in the table refer to the notes (a) To use the tables Locate terminal positions in the tables nearest to the required departure and destination from the index chartlets vii viii (b) Places in the same table With the name of the place first in alphabetical order, enter the head of the appropriate page of the table Follow the column down until it meets the line corresponding to the other place named at the side At this intersection will be found the distance between the two places, with the reference to any notes in small figures immediately below it Tables lIe h and the tables in Part IV, however, may be entered at either the head or the side (c) Places in adjacent tables Obtain the distance by adding the distances from departure or destination through a place common to both tables Places included in more than one table are shown in capitals in the tables and on the index charts (d) Places in non-adjacent tables Work the distance through places common to the intervening table or tables, or use the Link Tables in Part IV Places included in Link Tables are marked by asterisks in the tables and on the index charts For example,see page xviii Example A ship steams from Nautical Miles r Mean latitude Arc distance N to 50S along a meridian, a distance of 720' of arc To find the distance in International = 10 N = = = [1-0001488-0-005 0598 [1,0001488-0,0050598 716·5 Int Nautical Miles x x cos (2 x 1~O)] 720 0,9993908] 720 For most purposes in practical navigation, this adjustment for the International Nautical Mile can be disregarded, but if necessary it can be readily applied to the formulae for the sphere used in the following sections Rhumb line sailing (a) A rhumb line, or loxodrome, is a line on the earth's surface which cuts all meridians at a constant angle It therefore plots on a Mercator chart as a straight line Rhumb line distances taken from a Mercator chart are only acceptable if measured on the latitude or distance scale of the chart within the band of latitude covering the distance in question, and when the difference of latitude is not great With small-scale charts and a large difference of latitude, considerable errors may occur unless great care is taken in using the latitude scale, particularly in high latitudes The course and distance between two places may be calculated approximately by plane sailing formulae, or exactly by meridional parts or middle latitude sailing formulae 350( 1)S Supplement No 1-1982 TO ADMIRALTY DISTANCE TABLES ATLANTIC OCEAN FIRSTEDITION 1976 (Revised 1978) Corrected to 25th September 1982 Whenever reference is made to Admiralty Distance TablesAtlantic Oceanthis Supplement and Section IV of the weekly editions of Admiralty Notices to Mariners must be consulted © Crown Copyright 1982 Published by The Hydrographer of the Navy To be obtained from Agents for the sale of Admiralty Charts PREFACE Supplement No.1, 1982, has been prepared by Lieutenant-Commander C J de C Scott, RN, from information received since the publication of Admiralty Distance Tables-Atlantic Ocean (First Edition, 1976, Revised 1978) This supplement has been corrected to the date given below For later information see the monthly list of Corrections and Notices affecting Sailing Directions given in Section IV of the weekly editions of Admiralty Notices to Mariners Admiralty force Notices to Mariners should be consulted for the monthly list of temporary and preliminary notices in D W Haslam Rear-Admiral Hydrographer of the Navy Hydrographic Department Ministry of Defence Taunton Somerset TA 2DN Printed in the United Kingdom for HMSO 25th September 1982 Dd8405248 1195 C40 G3397 10170 iv Part II-Below Part IV-Link "lIj Gulf of Mexico" insert: Ilk Gulf of Saint Lawrence Tables: Tables S, E and F: For "Gulf" read "Gulf of Saint Lawrence, Gulf" v Below "Index Chart-Gulf following page 231 First line: For", of Mexico Table" insert: Index Chart-Gulf of Saint Lawrence Table chart section viii enter" read "(or with Tables lIe-h, the appropriate name), enter" xii Third line: For "formula" read "formulae" xiv First 12 lines: Read: (iii) When angles are entered to obtain a trigonometrical function, most instruments will show the correct +ve or -ve sign If the -ve sign is not shown it should be entered, if necessary, as indicated in the table below When entering a trigonometrical function to obtain an angle, ambiguity may arise over the correct quadrant in which the resulting angle should lie First the correct quadrant must be determined by inspection, then the correct angle must be obtained by addition or subtraction, if necessary, from 180° or 360°, as indicated by the arrows in the following table Sin cos tan 0°_90° + + + 180°_270° 270°+-360° - - - - + - + - 90°+-180° + eg The angle whose sine is +0·5 may be 30° or 150° (ie 180°-30°), while the sine of -0·5 may be 210° (180°+30°) or 330° (360°-30°) 67 Below"Westpit" insert: WEYMOUTH 50°37' N 2°27'W Blue page preceding page 69 CONTENTS: Below "lIj-Gulf of Mexico" insert: Ilk-Gulf of Saint Lawrence 96 Paragraph preceding notes Read: Routes passing W of Newfoundland Distances in this table are for routes passing Sand E of Newfoundland Distances for routes passing W of Newfoundland may however be shorter when Cabot Strait and Strait of Belle Isle are free of ice These distances may be calculated through the stations at the entrances to the Gulf of Saint Lawrence, adding the appropriate distances given below: Cabot Strait to Strait of Belle Isle (W of Newfoundland) Add: 297 miles Chedabucto Bay to Strait of Belle Isle (via Strait of Canso, then W of Newfoundland) Add: 462 miles (S & E of Newfoundland) eg Boston-C.Mugford 1583 but, Boston-Cabot Strait Cabot Stra.it-Strait of Belle Isle Strait of Belle Isle-C.Mugford 644 297 444 -Boston-C.Mugford 1385 (Via Gulf of Saint Lawrence) -Note 6: For "156" read "184" 99 Notes 123 and 124: Read: 123 Passing through 2°08·4' S, 43°36·4'W: to Itaqui, add 124 W of Atol das Rocas routes from NW passing N of Recife Manoel Luis For distances 100-104 To obtain distances to ports in Rio Amazonas and Rio Para Add: From Rio Amazonas to Porto de Santana to Almeirim to Belem From Rio Para 136 miles 276 miles 124 miles 113 Note 153: Read: Passing through distances to Itaqui, add 2°08·4' S, 43°36.4' W: routes from NW passing N of Recife Manoel Luis For 114-121 To obtain distances to ports in Rio Amazonas and Rio Para Add: From Rio Amazonas From Rio Para to Porto de Santana to Almeirim to Belem 136 miles 276 miles 124 miles 155 Below Note 162 Add: 163 Passing through Itaqui, add 2°08.4' S, 43°36·4'W: routes from NW passing N of Recife Manoel Luis For distances to 156-160 To obtain aistances to ports in Rio Amazonas and Rio Para Add: From Rio Amazonas From Rio Para to Porto de Santana to Almeirim to Belem 136 miles 276 miles 124 miles 172 Insert new pages 172 and 172a-GULF OF SAINT LAWRENCE-TABLE Ilk-from this Supplement 174-179 ATLANTIC OCEAN GAZETTEER FOR PLACES GIVEN IN THE TABLES AND NOTES For ARACJU read ARACAJU Insert the following names in their alphabetical sequence: , Almei rim 32 S Anticosti Island 49 35 N BAlE COM EAU 49 15 N 27 S Belem, Porto de Bi rd Rocks 47 50 N 46 15 N Cape Breton Isla nd 46 55 N CAPE EGMONT (8' ENE of) 45 47 N Caribou Cha nnel 46 03 N CHARLOTTETOWN 46 14 N Charlottetown Ha rbou r 47 02 N Chatham CORN ER BROOK 48 58 N DALHOUSiE 48 03 N ESCOU M INS, LES 48 19 N 47 08 N ESCUMINAC, POINT (4' NNE of) GASPE 48 50 N 24 S Itaqu i 47 30 N Magda len Islands 45 30 N MONTREAL (Saint Lambert Lock) 45 42 N PICTOU 50 02 N PORT-CARTIER PORT HAWKESBU RY 45 37 N 46 20 N Prince Edward Island 4649N QUEBEC (Custom House) 04 S Santana, Porto de 48 30 N STEPHENVI LLE 46 20 N SU MM ERSIDE 46 23 N Summerside Ha rbou r o 197 For "Levkas" read IILevkadhos, Limin" (both name columns) For "Levkas" read "Levkadhos, Limin" (in two places) 199 52 63 68 48 61 61 60 62 63 63 65 57 66 69 64 64 44 61 73 62 66 61 63 71 51 58 63 63 , 35 15 07 30 09 00 15 40 09 08 28 57 10 23 45 29 24 40 31 36 47 23 30 12 11 33 51 47 W W W W W W W W W W W W W W W W W W W W W W W W W W W W GULF OF SAINT LAWRENCE-TABLE Ilk Connections with adjoining tables This table connects: through: STRAIT OF BELLE ISLE CABOT STRAIT Port Hawkesbury via Chedabucto Bay, with: NW Atlantic-Table lid Trans-North Atlantic-Table lie NW-SE Atlantic-Table IIh It also connects through Cape Egmont with stations in NW-SE Atlantic-Table NW Atlantic-Table lid See Note C of Table IIh, and certain stations in Notes: W of Cape Breton Island Through Caribou Channel N of Prince Edward Island If S oJ Prince Edward Island, add 10 S of Prince Edward Island S of Prince Edward Island if N of Prince Edward Island, add 6 S of Prince Edward Island If N of Prince Edward Island, add 20 S of Prince Edward Island If N of Prince Edward Island, add 36 S of Prince Edward Island If N of Prince Edward Island, add 39 E of Prince Edward Island 10 E of Prince Edward Island If W of Prince Edward Island, add 46 11 E of Prince Edward Island If W of Prince Edward Island and through Caribou Channel, add 12 E of Prince Edward Island If W of Prince Edward Island and through Caribou Channel, add 13 13 Either E or W of Prince Edward Island 14 W of Prince Edward Island and through Caribou Channel If E of Prince Edward Island, add 15 S of Magdalen Islands If N of Bird Rocks, add 16 N of Bird Rocks 17 N of Anticosti Island If S of Anticosti Island, add 15 18 N of Anticosti Island If S of Anticosti Island, add 19 19 S of AnHcosti Island 20 S of Anticosti Island If N of Anticosti Island, add New page ... This first edition of Admiralty Distance Tables- Atlantic Ocean has been prepared by Lieutenant Commander C J de C Scott, RN, and contains distance tables for the Atlantic Ocean, North-west Europe,... Part II -Atlantic Ocean General Notes Tables: Iia North-east Atlantic lib South-east Atlantic IIc South-west Atlantic lid North-west Atlantic lie Trans-North Atlantic IIf Trans-South Atlantic. .. 231 page 231 page 231 page 231 page 231 ADMIRALTY ATLANTIC DISTANCE TABLES OCEAN INTRODUCTION Selecting a route The routes used for distances in these tables, which are the shortest routes, are