Admiralty distance tables indian ocean volume2

PREFACE This first edition of Admiralty Distance Tables-Indian Ocean has been prepared by Lieutenant Commander C J de C Scott, RN, and contains distance tables for the Indian Ocean and part of the Southern Ocean from South Africa to New Zealand, Red Sea, Persian Gulf and Eastern Archipelago 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from previous volumes of Admiralty Distance Tables The following volumes, or portions, of Admiralty Distance Tables are superseded Volume II Volume III 3rd Edition 1949 3rd Edition 1950 D W Haslam Rear-Admiral Hydrographer of the Navy Hydrographic Department Ministry of Defence Taunton Somerset TA 2D N 29 December 1978 CONTENTS Page Preface Contents List of Diagrams Introduction General Note on Table in this Volume Table1a iii iv v vii xxii Indian Oceanfrom Capeof Good Hope-Strait of Hormuz-Arabian Sea-Bay of Bengal-Arafura Sea-Torres Strait to Cape Leeuwin West side of Indian Ocean between Cape of Good Hope Strait of Hormuz and Cape Leeuwin ports in South Australia.Tasmaniaand South Cape (New Zealand) 23 Table RedSea 32 Table PersianGulf 36 Table EasternArchipelago 39 Table1b Table SeasonalRoutes Sa South Africa and off-lying islands ( ) West and south coastsof Australia 5b South Africa ~ ) North-west AustralianApproaches 5c North-west AustralianApproaches 47 47 58 60 Table 62 Gazetteer Link Table 66 LIST OF DIAGRAMS Page ix xii xiii xiv xix Shape of the Earth Meridional Parts Mean and Middle latitudes Great circle track Composite Sailing Index Index Index Index Index Chart 1-lndian Ocean Chart 2-Red Sea Chart 3-Persian Gulf Chart 4-Eastern Archipelago Chart 5-Seasonal Routes-North-west loose Chartlet Australian Approaches } Following page 71 ADMIRALTY INDIAN 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 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 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 The small figures below the distance figures in the table refer to the notes vii PREFACE Supplement No.1, 1983, has been prepared by Lieutenant-Commander C J de C Scott, RN, from information received since the publication of Admiralty Distance Tables-Indian Ocean (First Edition; 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 Notices to Mariners should be consulted for the monthly list of temporary and preliminary notices in force NAMES Numerous names have been altered since this volume was published To keep the amendments to a minimum this Supplement only amends the names in the Gazetteer and on the Index Chartlets In addition there is a list of Altered Names at the back of this Supplement, which should be consulted D W Haslam Rear-Admiral Hydrographer of the Navy Hydrographic Department Ministry of Defence Taunton Somerset TA 2DN 2nd April 1983 viii ... edition of Admiralty Distance Tables- Indian Ocean has been prepared by Lieutenant Commander C J de C Scott, RN, and contains distance tables for the Indian Ocean and part of the Southern Ocean from... presented in a different format from previous volumes of Admiralty Distance Tables The following volumes, or portions, of Admiralty Distance Tables are superseded Volume II Volume III 3rd Edition... 1-lndian Ocean Chart 2-Red Sea Chart 3-Persian Gulf Chart 4-Eastern Archipelago Chart 5-Seasonal Routes-North-west loose Chartlet Australian Approaches } Following page 71 ADMIRALTY INDIAN DISTANCE TABLES