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As Dynamic Positioning is a vessel functions rather than a specific piece of equipment, it can be described as an integration of a variety of components such as Position Reference System (PRS), gyro compasses, computers, propulsion systems and the vessels power plant. DP systems are controlled by means of an Operator Station, usually located on [...]
Posts Tagged ‘gyro’
Operation and Maintenance of DP System
Posted by author on August 30th, 2008
Posted in (DP)DYNAMIC POSITIONING 
Tags: alarms, automatic rejection, best fit, bridge, conventional navigation, dp systems, dynamic positioning, failure scenarios, gyro, input data, joystick, navigational control, operator station, position reference, power plant, propulsion systems, prs, redundancy, reference system, reference systems, system laser, taut wire, typical position, underwater systems, watchkeeper, wind sensors 
6 Comments »Navigation
Posted by author on June 7th, 2008
Policies, procedures and documentation
Is the vessel provided with adequate operator’s navigation instructions and procedures?
Does the operator provide guidance on minimum under keel clearance and squat?
Are deck log books and engine movement (bell) books correctly maintained and is an adequate record being kept of all navigational activities, both at sea and under pilotage?
Are procedure in place [...]
Posted in Pre-vetting/vetting information Tags: bridge equipment, c hart, changeover, compass error, Compass Errors, deck log, deck officers, electronic charts, guidance, gyro, handover, hart c, keel, log books, magnetic compass, nautical publications, nautical almanac, navigational activities, sailing directions, tide tables No Comments »Voyage Planning
Posted by author on June 6th, 2008
The Master’s Responsibility for Navigation
The Master has the ultimate responsibility for the ship’s navigation, which implies his personal supervision of the navigation officer of the watch (OOW), and to delegate authority to the OOW in accordance with established procedures and Master’s standing orders.
In all critical situations, and whenever such a situation is likely to occur, [...]
Posted in Navigation Tags: anchor, arrival and departure, astronomical observations, ballast, basic element, bearings, bridge team, bridge management, chart datum, collisions at sea, correct speed, correct vessel, dangerous situation, dardanelles, data sensor, deck crew, deep sea, departure port, distance calculations, dover straits, dual speed, electronic nautical charts, execution, fog, general communications, gps, gulf of suez, gyro, heavy traffic, heavy weather, helm, helmsman, hormuz strait, hydrographic data, light signals, log books, magnetic compass, making landfall, malacca strait, mishap, nautical publications, navigation officer, navigational equipment, navigational instruments, necessary bridge, necessary corrections, ocean voyage, oow, open sea, paper charts, pilot station, poor visibility, port of call, preventing collisions, preventive measures, proximity, RADAR, radar echoes, radar mapping, routine duties, routine procedure, safety system, sea areas, sea passages, sensor inputs, sensor limitations, singapore strait, speed reduction, stcw 95, system accuracy, target, tidal streams, traffic areas, traffic conditions, tropical storm, visibility No Comments »Steering gear and the automatic pilot
Posted by author on April 24th, 2008
Testing of steering gear
The OOW should ensure that the SOLAS requirements for the operation and testing of the steering gear are observed.
Posted in Operation and Maintenance of Bridge Equipmant Tags: automatic pilot, autopilot, bridge, direction wind, gyro, heading, independent system, integrated system, legs, manual override, mode selector switch, navigation system, oow, radius, repeater, right direction, rudder angle indicator, Steering gear and the automatic pilot, track error, wheel No Comments »Radar and Navigation
Posted by author on April 21st, 2008
When using radar for position fixing and monitoring, the OOW should check;
The overall performance of the radar
The identity of the object being observed
