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.
Article Origins of the IMPA pilot mark
by Kevin Vallance deep sea pilot and author - published on 24 October 2019
There are many things in both our everyday and professional lives which we take for granted and never question the origins of, an example of this might be the IMPA recommended ‘pilot mark or pilot line’, which is sometimes seen on the side of vessels indicating where a vessels freeboard exceeds 9 metres.
Article NAUTITEC Shiphandling Simulator and Training Centre, Germany
published on 9 February 2021
Video Humber Maritime College Simulator Tour
published on 21 October 2020
Video Maritime Pilots' Institute
published on 4 July 2019
The Maritime Pilots Institute is the premier training facility for River Pilots employing a mix of virtual and real world facilities. Located in Covington Louisiana, we are 45 minutes from downtown New Orleans while offering the safety and amenities of small town life.
The training presents a balance between simulated locations with a variety of environmental conditions and manned scale models of cargo ships in a series of lakes with docking and currents and live factors such as wind and...
Article New Study on GNSS Interference in the Baltic Sea
by GPSPATRON Sp. z o. o. - published on 12 March 2025
GNSS interference has become a growing challenge in the Baltic Sea, affecting maritime navigation, aviation, and critical infrastructure. While numerous datasets and services, such as gpsjam.org, spoofing.skai-data-services.com, and flightradar24, report high-altitude GNSS interference based on ADS-B data, there is a significant lack of studies focusing on ground-level interference.