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East Africa and the South Indian Ocean ★ PUB. 171 SAILING DIRECTIONS (ENROUTE) ★ EAST AFRICA AND THE SOUTH INDIAN OCEAN ★ Prepared and published by the NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Springfield, Virginia © COPYRIGHT 2010 BY THE UNITED STATES GOVERNMENT NO COPYRIGHT CLAIMED UNDER TITLE 17 U.S.C. 2010 TENTH EDITION For sale by the Superintendent of Documents, U.S. Government Printing Office Internet: http://bookstore.gpo.gov Phone: toll free (866) 512-1800; DC area (202) 512-1800 Fax: (202) 512-2250 Mail Stop: SSOP, Washington, DC 20402-0001 II Preface 0.0 Pub. 171, Sailing Directions (Enroute) East Africa and the 0.0 Springfield VA 22150-7500 South Indian Ocean, Tenth Edition, 2010, is issued for use in 0.0 New editions of Sailing Directions are corrected through the conjunction with Pub. 160, Sailing Directions (Planning date of the publication shown above. Important information to Guide) South Atlantic Ocean and Indian Ocean. The compan- amend material in the publication is available as a Publication ion volumes are Pubs. 172, 173, 174, and 175. Data Update (PDU) from the NGA Maritime Domain web site. 0.0 Digital Nautical Chart 18 provides electronic chart coverage for the area covered by this publication. 0.0NGA Maritime Domain Website 0.0 This publication has been corrected to 27 March 2010, in- http://msi.nga.mil/NGAPortal/MSI.portal cluding Notice to Mariners No. 13 of 2010. Subsequent Publi- 0.0 cation Data Updates (PDUs) have corrected this publication to 0.0 Courses.—Courses are true, and are expressed in the same 19 November 2011, including Notice to Mariners 47 of 2011. manner as bearings. The directives “steer” and “make good” a course mean, without exception, to proceed from a point of or- Explanatory Remarks igin along a track having the identical meridianal angle as the designated course. Vessels following the directives must allow 0.0 Sailing Directions are published by the National Geospatial- for every influence tending to cause deviation from such track, Intelligence Agency (NGA), under the authority of Department and navigate so that the designated course is continuously be- of Defense Directive 5105.40, dated 12 December 1988, and ing made good. pursuant to the authority contained in U. S. Code Title 10, Sec- 0.0 Currents.—Current directions are the true directions toward tions 2791 and 2792 and Title 44, Section 1336. Sailing Direc- which currents set. tions, covering the harbors, coasts, and waters of the world, 0.0 Dangers.—As a rule outer dangers are fully described, but provide information that cannot be shown graphically on nauti- inner dangers which are well-charted are, for the most part, cal charts and is not readily available elsewhere. omitted. Numerous offshore dangers, grouped together, are 0.0 Sailing Directions (Enroute) include detailed coastal and mentioned only in general terms. Dangers adjacent to a coastal port approach information which supplements the largest scale passage or fairway are described. chart produced by the National Geospatial-Intelligence Agen- 0.0 Distances.—Distances are expressed in nautical miles of 1 cy. This publication is divided into geographic areas called minute of latitude. Distances of less than 1 mile are expressed “Sectors.” in meters, or tenths of miles. 0.0 Bearings.—Bearings are true, and are expressed in degrees 0.0 Geographic Names.—Geographic names are generally from 000° (north) to 360°, measured clockwise. General bear- those used by the nation having sovereignty. Names in paren- ings are expressed by initial letters of points of the compass theses following another name are alternate names that may (e.g. N, NNE, NE, etc.). Adjective and adverb endings have appear on some charts. In general, alternate names are quoted been discarded. Wherever precise bearings are intended de- only in the principal description of the place. Diacritical marks, grees are used. such as accents, cedillas, and circumflexes, which are related to 0.0 Charts.—Reference to charts made throughout this publica- specific letters in certain foreign languages, are not used in the tion refer to both the paper chart and the Digital Nautical Chart interest of typographical simplicity. Geographic names or their (DNC). spellings do not necessarily reflect recognition of the political 0.0 Coastal Features.—It is assumed that the majority of ships status of an area by the United States Government. have radar. Available coastal descriptions and views, useful for 0.0 Heights.—Heights are referred to the plane of reference radar and visual piloting are included in geographic sequence used for that purpose on the charts and are expressed in meters. in each Sector. 0.0 Index-Gazetteer.—Navigational features and place names 0.0 Corrective Information.—Users should refer corrections, are listed alphabetically in the back of the book. The approxi- additions, and comments to NGA’s Maritime Operations Desk, mate position, along with the Sector and paragraph numbers as follows: (e.g. 1.1), facilitate location in the text. 0.0 1. Toll free: 1-800-362-6289 0.0 Internet Links.—This publication provides internet links to 0.0 2. Commercial: 571-557-5455 web sites concerned with maritime navigational safety, includ- 0.0 3. DSN: 547-5455 ing but not limited to, Federal government sites, foreign Hy- 0.0 4. DNC web site: http://dnc.nga.mil/NGAPortal/ drographic Offices, and foreign public/private port facilities. 0.0 DNC.portal NGA makes no claims, promises, or guarantees concerning the 0.0 5. Maritime Do- accuracy, completeness, or adequacy of the contents of the web 0.0 main web site: http://msi.nga.mil/NGAPortal/ sites and expressly disclaims any liability for errors and omis- 0.0 MSI.portal sions of these web sites. 0.0 6. E-mail: [email protected] 0.0 Light and Fog Signals.—Lights and fog signals are not de- 0.0 7. Mailing address: Maritime Safety Office scribed, and light sectors are not usually defined. The Light 0.0 National Geospatial-Intelligence Lists should be consulted for complete information. 0.0 Agency 0.0 Ports.—Directions for entering ports are depicted where ap- Mail Stop N64-SH propriate by means of chartlets, sketches, and photos, which fa- 0.0 7500 Geoint Drive cilitate positive identification of landmarks and navigational Pub. 171 III aids. These chartlets and sketches are not always to scale, how- 0.0 Wind Directions.—Wind directions are the true directions ever, and should be used only as a general informational guide from which winds blow. in conjunction with the best scale chart. Specific port facilities are omitted from the standard format. They are tabulated in Reference List Pub. 150, World Port Index. 0.0 Radio Navigational Aids.—Radio navigational aids are not 0.0 The principal sources examined in the preparation of this described in detail. Publication No. 117 Radio Navigational publication were: Aids and NOAA Publication, Selected Worldwide Marine 0.0 British Hydrographic Department Sailing Directions. Broadcasts, should be consulted. 0.0 Canadian Hydrographic Service Sailing Directions. 0.0 Soundings.—Soundings are referred to the datum of the 0.0 Various port handbooks. charts and are expressed in meters. 0.0 Reports from United States naval and merchant vessels and 0.0 Special Warnings.—A Special Warning may be in force for various shipping companies. the geographic area covered by this publication. Special Warn- 0.0 Other U.S. Government publications, reports, and docu- ings are printed in the weekly Notice to Mariners upon promul- ments. gation and are reprinted annually in Notice to Mariners No. 1. 0.0 Charts, light lists, tide and current tables, and other docu- A listing of Special Warnings currently in force is printed in ments in possession of the Agency. each weekly Notice to Mariners, Section III, Broadcast Warn- 0.0 http://www.lighthouses.co.za ings, along with the notice number of promulgation. Special Warnings are also available on the Maritime Division web site. Pub. 171 IV 0.0SECTOR LIMITS—PUB. 171 Pub. 171 Conversion Tables Feet to Meters Feet0123456789 0 0.00 0.30 0.61 0.91 1.22 1.52 1.83 2.13 2.44 2.74 10 3.05 3.35 3.66 3.96 4.27 4.57 4.88 5.18 5.49 5.79 20 6.10 6.40 6.71 7.01 7.32 7.62 7.92 8.23 8.53 8.84 30 9.14 9.45 9.75 10.06 10.36 10.67 10.97 11.28 11.58 11.89 40 12.19 12.50 12.80 13.11 13.41 13.72 14.02 14.33 14.63 14.93 50 15.24 15.54 15.85 16.15 16.46 16.76 17.07 17.37 17.68 17.98 60 18.29 18.59 18.90 19.20 19.51 19.81 20.12 20.42 20.73 21.03 70 21.34 21.64 21.95 22.25 22.55 22.86 23.16 23.47 23.77 24.08 80 24.38 24.69 24.99 25.30 25.60 25.91 26.21 26.52 26.82 27.13 90 27.43 27.74 28.04 28.35 28.65 28.96 29.26 29.57 29.87 30.17 Fathoms to Meters Fathoms0123456789 0 0.00 1.83 3.66 5.49 7.32 9.14 10.97 12.80 14.63 16.46 10 18.29 20.12 21.95 23.77 25.60 27.43 29.26 31.09 32.92 34.75 20 36.58 38.40 40.23 42.06 43.89 45.72 47.55 49.38 51.21 53.03 30 54.86 56.69 58.52 60.35 62.18 64.01 65.84 67.67 69.49 71.32 40 73.15 74.98 76.81 78.64 80.47 82.30 84.12 85.95 87.78 89.61 50 91.44 93.27 95.10 96.93 98.75 100.58 102.41 104.24 106.07 107.90 60 109.73 111.56 113.39 115.21 117.04 118.87 120.70 122.53 124.36 126.19 70 128.02 129.85 131.67 133.50 135.33 137.16 138.99 140.82 142.65 144.47 80 146.30 148.13 149.96 151.79 153.62 155.45 157.28 159.11 160.93 162.76 90 164.59 166.42 168.25 170.08 171.91 173.74 175.56 177.39 179.22 181.05 Meters to Feet Meters 0 1 2 3 4 5 6 7 8 9 0 0.00 3.28 6.56 9.84 13.12 16.40 19.68 22.97 26.25 29.53 10 32.81 36.09 39.37 42.65 45.93 49.21 52.49 55.77 59.06 62.34 20 65.62 68.90 72.18 75.46 78.74 82.02 85.30 88.58 91.86 95.14 30 98.42 101.71 104.99 108.27
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