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 interference and jamming on the increase

published on 2 October 2020

Ships have reported an increasing number of cases of significant GPS interference and jamming in recent months. The geographic areas with more than one reported incident include the eastern and central Mediterranean Sea, the Persian Gulf, and multiple Chinese ports.

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Video SAMMON Intro Ships Manoeuvring Predictions

published on 11 July 2020

SAMMON Introduction into Ships Manoeuvring Prediction
- newly made Video to display the principles of SAMMON

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Video Port Aransas in Corpus Christi, Texas Ship MT Seaways Yellowstone | Berthing | Mooring | Discharging

published on 12 August 2022

𝐃𝐢𝐬𝐜𝐥𝐚𝐢𝐦𝐞𝐫: The lecture or topic found in this video is my personal experience and I am just sharing my knowledge. To this date, whatever is said in here is still applicable. All content on this channel is provided for entertainment purposes only.. However, it is for educational purposes and that for cross referencing and comparison, it would be advisable to read or view related post or the Creative Common Video as per link below. The content should never be used to substitute...

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Video GIDAS - GNSS Interference Detection & Analysis System

published on 29 April 2021

OHB Digital Solutions GmbH develops systems for monitoring the GNSS frequency bands as well as detection, classification and localization of intentional or unintentional interference sources. Many stakeholders and applications as well as critical infrastructure providers are relying on GNSS to provide their services. Since Global Navigation Satellite Systems (GNSS) are widely used in safety and value critical applications, GIDAS detects, classifies and localizes any GNSS interference...

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Article IMPA Information on Pilot Transfer Operations (May 2024)

published on 13 May 2024

This document aims to provide information to pilot organisations and/or competent pilotage authorities on the conduct of pilot transfer operations.

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Video New Pilot Boat "Mantaray" for Port of Townsville, 10 March 2021

published on 15 March 2021

The Port of Townsville has welcomed the newest addition to its fleet of pilot boats with the arrival of the newly built Mantaray. The $3.3 million, custom-built vessel utilises high-tech equipment and design to maximise safety and efficiency for pilot transfers.

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Article Rope snapped: Marine Pilot accident in Durban, South Africa.

by Marine-Pilots.com - published on 29 April 2020

A 35-year-old male sea pilot of the Transnet National Ports Authority (TNPA) fell into the sea from a crude oil tanker near the N Shed Wharf in the port of Durban. A rope of the pilot ladder is said to have snapped for an undetermined reason when the man disembarked while leaving the crude oil tanker which was leaving the port of Durban.

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