ARAB ACADEMY FOR SCIENCE & TECHNOLOGY & MARITIME

TRANSPORT

COLLEGE OF MARITIME TRANSPORT & TECHNOLOGY

Terrestrial Navigation 2 MT233

Chart CorrectionPrepared By

Navigation Team

Without a chart the ship cannot be navigated.

Without an up to date chart the ship cannot be navigated safely.

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The following items are required to run a satisfactory correction and warning system.

1 -Chart Correction Log and Folio Index(NP 133A, 133B)

2 -Temporary and Preliminary Notice Log.

3 -Navigational Warning Log.

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Equipment Publications:1- CHART CORRECTION LOG(NP133A)

Enables easy maintenance of chart correcting details for admiralty charts Audit pages to record receipt of Weekly Notices to Mariners, New Charts and New Editions Index to check Notices to Mariners against all Admiralty Charts.

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PublicationsThere are three publications covering NM1. Admiralty Notices to Mariners, Weekly

Editions2. Annual Summary of Admiralty Notices to

Mariners (NP 247)3. Cumulative List of Admiralty Notices to

Mariners (NP 234A & 234B)

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Types of Navigational Chart Correction Notices

1 -Permanent Notices.2 -Temporary Notices (T).3 -Preliminary Notices (P).

4 -New Edition or New Chart.

5 -Blocks

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Types of Navigational Chart Correction Notices

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Types of Navigational Chart Correction Notices

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Types of Navigational Chart Correction Notices

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Types of Navigational Chart Correction Notices

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Types of Navigational Chart Correction Notices

Hints on correcting charts

1- Permanent Notices should be neatly made in waterproof violet ink on the charts affected.2- Notation of the year and number of the

Notices inserted should be made in the bottom left-hand corner of the chart.

3- Always check that the previous Notice has been inserted.

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Hints on correcting charts cont.,

4- If several charted are affected by one notice, the largest scale chart should be corrected

first.5- Correct the chart folios in use first.

6- Whenever possible, writing should be inserted clear of the water unless the

relevant objects are on the water.

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Terms used in updates

INSERT is used for the insertion of all new data or together with DELETE command.

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INSERT

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732 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.

Source: D PattersonChart 5052 [ previous update 2512/05] ETRS89 DATUMInsert PA 50° 05´·36N., 000° 45´·96E.

PA

Small Corrections: 2007 732

Terms used in updates

AMEND is used when a feature remain in its existing charted position but has a

change of characteristic.

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AMEND

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896 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.

Source: D PattersonChart 5052 [ previous update 732/07] ETRS89 DATUMAmend Light to, Gp Occ )4(WR.15sec24M 50° 03´·84N., 001° 22´·18E.

Gp Occ (4)WR.15sec24M

Small Corrections:2007 732 - 896

Terms used in updates

SUBSTITUDE is used when one feature replaces an existing feature and the

position remains as charted.

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SUBSTITUDE

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1211 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.

Source: D PattersonChart 5052 [ previous update 896/07] ETRS89 DATUM

Substitute 50° 06´·22N., 000° 14´·02E. PA

Small Corrections:2007 732 - 896- 1211

Terms used in updatesMOVE is used for features whose

characteristics or descriptions remain unchanged, but they are to be move small

distance.

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MOVE

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1519 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.Source: D PattersonChart 5052 [ previous update 1211/07] ETRS89 DATUM

Move From: 50° 47´·00N. 001° 07´·60E. To: 50° 47´·00N, 001° 06´·70E

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Small Corrections:2007 732 -896 -1211 -1519

Terms used in updatesDELETE is used when features are

to be removed from the chart or, together with the INSERT command.

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DELETE

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1719 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.

Source: D PattersonChart 5052 [ previous update 1519/07] ETRS89 DATUM

Delete symbol, tidal stream diamond, with designation, K 50° 29´·92N., 000° 26´·42E.

Small Corrections:2007 732- 896- 1211 -1519 - 1719

Tracings for chart correction When tracings are supplied, They are

provided for all permanent navigational chart corrections promulgated in the Weekly

edition of Admiralty Notices to Mariners, Except when a block correction only applies.

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Tracing DetailsThe chart numberThe notice to mariners number for the

current correctionThe previous correctionThe standard folios in which the chart is

contained

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Thank youAny Question