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volumes, or portions, of Admiralty Distance Tables are superseded.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 1 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.

1

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 2

RedSea.

32

Table 3

PersianGulf.

36

Table 4

EasternArchipelago.

39

Table1b

Table 5
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 6

62

Gazetteer

Link Table.

66


LIST OF DIAGRAMS
Page

1.
2.
3.
4.
5.

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
1. 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.

2. 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.

3. 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.

4.

Distances in the tables are given in International

Nautical Miles. (See paragraph 7b.)

5. 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

















INDIAN

OCEAN

TABLE 1a


1