Bridge Equipment and Watchkeeping

All Bridge Equipment, Bridge Procedures, IAMSAR, VTS, Ship Reporting System, BPM, Bridge Resource Management, Bridge Procedure Management, Watchkeeping, Emergencies, Maneuvering

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IMO Performance Standards for Auto Pilot (Heading Control Systems)

Objectives Within limits related to the ships’s manoeuvrability the heading control system, in conjunction with its source of heading information, should enable a ship to keep a preset heading with minimum operation of the ship’s steering gear. A heading control system may work together with a track control system adjusting its heading for drift. A …

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Errors Of GPS

Factors affect the accuracy of GPS positions (GPS Errors) Atmospheric Error Changing atmospheric conditions change the speed of the GPS signals as they pass through the Earth’s atmosphere and this affects the time difference measurement and the fix will not be accurate. Each satellite transmits its message on two frequencies and hence a dual frequency …

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Errors of Echo Sounder

Pythagoras Error This error is found when two transducers are used, one for transmission and the other one for reception. This error is calculated using the Pythagoras principle. This error becomes prominent whenever distance between two transducer is more than 2 mtrs, manual should be referred in order to use the table for corrections. Multiple …

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Performance Standards for Devices to Measure and Indicate Speed and Distance (Speed Log)

SOLAS Requirements of Devices to Measure and Indicate Speed and Distance SOLAS requires all ships of 50,000 GRT and above to be fitted with a speed and distance measuring device fulfilling SOLAS regulation V/19.2.3.4 and, in addition, a speed and distance measuring device fulfilling regulation V/19.2.9.2. Performance Standards for Devices to indicate Speed and Distance: …

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When to call Master on the Bridge? OR State the circumstances under which you will call Master.

When to Call Master on Bridge A Ship’s Master is always responsible for all decisions on board is the ship. Master has the overall authority to take actions with respect to the safe conduct of navigation and protection of the environment and safety of the ship and its crew. And the Officer In-charge should always …

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What to do in case of Gyro Failure

Gyro Compass is a mechanical device. With time they tend to fail. If such failure happens during navigation, pilotage, entering or leaving a port or in TSS, then following steps to be taken to avoid incidents. As per SOLAS Chp V, Regulation 19.2.5, A Gyro Compass or other means are required, to determine and display …

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Short Notes on Watchkeeping under Different Weather Conditions

Bridge Watchkeeping under Different Weather Conditions Table of Content: Watchkeeping during Clear Weather/ Visibility/ Open Seas Watchkeeping during Restricted visibility Coastal and Congested/ Restricted Waters Navigation When Ship at anchor Navigation with a pilot on board Navigation in Heavy Weather Watchkeeping during Clear Weather/ Visibility/ Open Seas Take frequent and accurate compass bearings of approaching …

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IMO Performance Standards of ARPA

Performance Standards of ARPA 1. Detection: If a separate facility is provided for the detection of targets, other than by the Radar, its performance should not be inferior to that which could be obtained by the use of the radar display. 2. Acquisition: Target acquisition may be manual or automatic for relative speeds up to …

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What do Master’s Standing Orders mean?

Master’s Standing Orders are as important as other documents on board. As we all know ship handling and operations are complex and require utmost precision. It is therefore important that of the ship’s officers to ensure that high level of professionalism is being maintained at all the times. The Master of the ship is ultimately …

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Standards regarding Watchkeeping on Merchant Ships, Part II

Index: Standards regarding Watchkeeping, Part I Principles to be observed in keeping a Radio Watch Watch Arrangements for Radio Watch Performing the Radio Watch Watchkeeping In Port Principles applying to all watchkeeping Watch Arrangements at Port Taking over the Watch Taking Over the Deck Watch at Port Taking Over the Engineering Watch at Port Performing …

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