Opinion Bow Truster Effect on Ship's Headway

by Capt. Hugues Cauvier - published on 14 July 2022

When the bow thruster has been in operation for a while, pilots often notice that the ship not only turns but also gains speed. But why is this? Opinion by Capt. Hugues Cauvier.

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Opinion A Corrected Version on Positioning of Pivot Point

by Capt. Santosha K. Nayak - published on 18 November 2020

Understanding the fundamentals of the pivot point is highly required for understanding the alteration of the courses. Pivot point is an imaginary point on the vessel which turns on a circular path on the perimeter of vessel’s turning circle when the vessel makes a turn. The knowledge about the position of the pivot point in a manoeuvring situation provides the ship handler with the information on the geometry of motion of the ship.

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Opinion Scientific Fact: The ‘traditional’ understanding of the ship’s pivot point is wrong!

by Tim Cummins, Harbour Pilot, Portsmouth International Port - published on 9 July 2020

In fact, the pivot point that we “see” is a trick of the eye, it looks like the ship is rotating about this point but in fact it is elsewhere, a point that you cannot see.

Related content

Video Bow thruster effect on ship's headway 1

by Capt. Hugues Cauvier - published on 14 July 2022

What is causing the forward motion of a stopped vessel using continous bow thruster action?
by Capt. H. Cauvier

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Video Hugues Cauvier: Understanding the ship's pivot point (complete video)

by Capt. Hugues Cauvier - published on 3 September 2024

This video has been recut and edited by the creator Hugues Cauvier. Previously there were three episodes, which have now been combined into one.

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Video How to Launch a Pilot Boat–Behind the Scenes at Point Hope Shipyard

published on 20 June 2025

Welcome to Point Hope Shipyard in Victoria, British Columbia, Canada. In this video, I follow the float off of the Pacific Navigator, a hardworking pilot boat that serves the Port of Victoria and Ogden Point. We watch as the vessel is pulled along the marine railway, rotated on the turntable, and positioned onto the cradle. Once secured, the cradle lowers to float-off depth, and the Pacific Navigator fires up her engines for a short harbour spin before returning to duty. Some segments,...

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Article GPS (Part 1) - Structure, mode of operation, technical and physical fundamentals of GPS

by Capt. Gunter Schütze, Thailand/Germany - published on 30 January 2020

Of course, as a Nautical Specialist, I also deal with the international discussion on the advantages and disadvantages of satellite-based navigation, e-navigation and conventional terrestrial and astronomical navigation.

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Video IALA Port & Waterway Risk Seminar - Chapter on Simulation by Knud Benedict

published on 22 October 2021

This video is an extract of some elements from lectures by Knud Benedict on "Simulation" as part of the seminars provided by the IALA World Wide Academy on the use of the "IALA Toolbox for Port & Waterway Risk Management".

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Video BRIDGE PROCEDURES CHECKLISTS | PART 1 - PILOT CARD

published on 20 June 2023

Bridge procedures guide checklist, pilotage, pilot card, Master pilot information exchange, MPEX, wheelhouse poster, pilot boarding arrangement, ship's particulars. Thank you for supporting our channel: paypal : uasupplyltd@gmail.com ✅We offer quality service, without weekends and holidays, order fulfillment, as soon as possible with the understanding and individual approach to each client. 🚢The main directions of the company UASUPPLY: - A comprehensive supply for merchant ships of...

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Video OMC International - DUKC® Explained

published on 14 October 2019

A in-depth video explaining how DUKC® works.

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Video What is the impact of lateral resistance on a ship's turning circle??

published on 3 September 2020

This video explains the impact of lateral resistance on the turning circle of a vessel using animations. The video explains the term lateral resistance, shows an example of its impact on the turning circle and its associated aspects (advance, transfer, tactical diameter and drift angle).
Contents of this video will benefit mariners preparing for exams (written and oral examinations).

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Opinion AIMPA - The need and it´s Ideals

by Capt. Gajanan Karanjikar - Founder President - AIMPA - published on 12 February 2021

The formation of the All India Marine Pilot Association was a task which was required at any cost. The hurdles of Morale ground were noticed and one such organization was then decided to be formed by Group of Mariners who care for ’safety and security’ of the Pilot.

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Article AIMPA Journal- May 2021 issue XI

by AIMPA - All India Marine Pilots' Association - published on 17 May 2021

The All India Maritime Pilots' Association has released its new journal for May

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