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.
Related content
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
Opinion Example of a passage and berthing plan
by Marine-Pilots.com - published on 19 June 2020
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.
Video OMC International - DUKC® Explained
published on 14 October 2019
Article Webinar - Port & Pilot supplied ECDIS routes and passage plans
published on 29 January 2021
The Australasian Marine Pilots Institute is presenting a webinar via Zoom about ports providing ECDIS routes and passage plans to ships as part of the pre-arrival process.
It will take place on Thursday 11 February 2021 at 19:00 AEDT (08:00 UTC) and is free for AMPI/IMPA/UKMPA/NZMPA members. Non-members are also welcome to attend.
Video AIMPA’s Webinar on “Reconceptualising Indian Maritime Pilotage on 24th Oct 2020
published on 28 January 2021
The need to hold such a webinar was felt from the interaction over several months of AIMPA members through its President, Capt. Gajanan Karanjikar, with Capt Simon Meyjes and Capt.Ravi Nijjer - both instrumental in the thorough upgrade of pilotage operations Safety management systems in parts of Australia. From these interactions, AIMPA has come to the firm conclusion that a thorough upgrade of maritime pilotage management systems in India is necessary. Holding a webinar would be a good...
Article Intertanko Guide to Safe Navigation (2nd Edition-2021) released
published on 28 December 2021
Video The difference between Gross Tonnage and Net Tonnage
published on 14 July 2020
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).