Dynamic Positioning (DP) is a vessel capability provided via an integration of a variety of individual systems and functions*. A computer control system automatically maintains a vessel's position and heading by using her own propellers and thrusters. Position reference sensors, combined with wind sensors, motion sensors and gyro compasses, provide information to the computer pertaining to the vessel's position and the magnitude and direction of environmental forces affecting its position.
Examples of vessel types that employ DP include but are not limited to ships and semi-submersible Mobile Offshore Drilling Units (MODU).
The computer program contains a mathematical model of the vessel that includes information pertaining to the wind and current drag of the vessel and the location of the thrusters. This knowledge, combined with the sensor information, allows the computer to calculate the required steering angle and thruster output for each thruster. This allows operations at sea where mooring or anchoring is not feasible due to deep water, congestion on the sea bottom (pipelines, templates) or other problems.
Dynamic positioning may either be absolute in that the position is locked to a fixed point over the bottom, or relative to a moving object like another ship or an underwater vehicle. One may also position the ship at a favorable angle towards wind, waves and current, called weathervaning.
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Highlights from the 39th DPTEG
The 39th meeting of the Dynamic Positioning Training Executive Group (DPTEG) provided a platform for meaningful discussions on current training frameworks, certification challenges and the future of dynamic positioning (DP) standards in a rapidly evolving maritime landscape.
The importance of training and onboard familiarisation
The foundering on 6 October 2024 of the DP2 vessel HMNZS Manawanui (formerly MV Edda Fonn) sent shockwaves through both the Royal New Zealand Navy as well as the broader maritime community. Fortunately, there was no loss of life although a pollution prevention response remains ongoing.
The International Maritime Organization (IMO) is currently reviewing the Standards for Training, Certification and Watchkeeping (STCW)
Following the February 2025 meeting of the sub-Committee on Human Element, Training and Watchkeeping, there are approximately 500 suggested changes to be discussed, ranging from minor textual amendments to more substantial matters. There are now so many changes to be covered that the timeline for discussions has had to be extended.
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Expanding DP training to meet industry demand: highlights from the 37th DPTEG meeting
The January meeting of the Dynamic Positioning Training Executive Group (DPTEG) focused on ensuring that DP certification remains relevant, robust and responsive to a rapidly changing maritime landscape.
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Navigating the future of Dynamic Positioning training: highlights from the 37th DPTEG meeting
The 37th session of the Dynamic Positioning Training Executive Group (DPTEG) took place in November. During the bi-annual meeting, the group discussed the latest developments in the rapidly evolving industry landscape, underlining the importance of practical training and assessment to reflect the growing sophistication of DP roles.
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IMO review of DP training and certification
In October 2024, the International Maritime Organization began a four-year review of the STCW code, considering over 400 proposed changes. Key among these are proposals is to shift Dynamic Positioning training from Part B (guidance) to Part A (mandatory regulation). If adopted, these changes would formalize DP training standards under IMO governance.
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