Video

The difference between Gross Tonnage and Net Tonnage


published on 14 July 2020 988 -

Found on YouTube. Created by "Steering Mariners".
Using pictures and sketches, this video finally explains the difference between gross tonnage (GRT) and net tonnage (NRT); the ship spaces that are included/excluded in their calculation; and the importance of these terms to ship owners.

Contents of this video will benefit mariners preparing for exams (written and oral examinations).
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Article A review of the ship’s pivot point: Science, Maths and Observation’ Where is the centre of a ship’s rotation?

by Tim Cummins, Harbour Pilot, Portsmouth International Port - published on 17 July 2020

This my attempt to do just that. This is a summary of all scientific papers and articles that I could find about the ship’s pivot point. I have added links to any videos associated with the publications and have also included any useful diagrams or equations that the authors published to help explain their research.

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Video Berthing, Anchoring & other Mooring Operations | Berthing (Part 1)

published on 8 September 2021

Course Name: Berthing, Anchoring & other Mooring Operations
Topic Name: Berthing

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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 Yaw Stability of Ships - Basic Principles by Knud Benedict

published on 18 November 2021

Another very good explanatory video by Knud Benedict. Absolutely worth seeing.
Yaw Stability is an important element of Ships Manoeuvrability - both for course keeping and turning ability. This first video in a series explains the Basic Principles of stability in steady state equilibrium conditions and the forces / moments involved

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Opinion 1000 stanchions around… Which ones are correct and which ones are killers?

by Arie Palmers - published on 6 December 2022

Stanchions therefore are an often-overlooked part of a pilot transfer arrangement and therefore I
want to give them more attention in this article. They proved to be the cause of a whole series of accidents, some of which were even fatal.

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Article Pilot dispatching problem along a maritime corridor: a case study in the St. Lawrence River

published on 13 May 2025

This study presents a novel decision support process for a pilot dispatching problem in the St. Lawrence River. It integrates a comprehensive set of time-based performance measures, including working time, waiting time, and skill level differences, to optimize fairness and operational efficiency in pilot dispatching.

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Article Armstrong Marine USA delivers Glacier bay Pilot Boat

by BRIX Marine - published on 13 November 2020

Gustavus, AK – Armstrong Marine USA of Port Angeles, WA recently delivered the 45’8” x 16’ semi-displacement catamaran Serac to the National Park Service (NPS) for use in Glacier Bay National Park and Preserve.

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Article Rumos Práticos 58 published in Portuguese and English

published on 8 June 2021

One hundred and sixty-seven years ago, what was once a pilots’ association became Pernambuco Pilot Station. On February 28th of 1854, Pilot Station 9 first appeared in the port of Recife, and was to assume the current configuration with the development of the Suape port complex, in the Ipojuca municipality, 40 kilometers away. In the fourth article of the series on Brazilian ZPs of this edition, Rumos Práticos reveals the main challenges met in the state of Pernambuco by the pilot station, which today joins in implementing new operations and overcoming infrastructure bottlenecks.

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Video THIS is Safehaven Marine Interceptor 60 PILOT BOAT

published on 26 August 2025

While filming for the Voyager T2000, Frank from Safehaven Marine asked if I wanted to make a video about the brand new Pilot Interceptor 60. There was no way I was going to miss this opportunity!
If you would like to find out more about this boat or would like to get in touch with me about anything mentioned in this video: 👉🏻 https://linktr.ee/john_johnson 👈🏻
Voyager T2000 Yacht Tour: https://youtu.be/Z8m7mWNWGAs
Voyager T2000 sea trial: https://youtu.be/ihgjtrgV0O4

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Video ABB and Keppel O&M collaborate on autonomous tug with remote operation

published on 22 June 2021

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