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 Future Tug Master Training
by Henk Hensen - published on 11 July 2023
Article Adding map and speedometer widgets in your time-lapse video
by River Pilot Kris De Decker - published on 29 September 2021
Article Updated App: "Bollard Pull Calculation for Marine Pilots"
by Baykal YAYLALI - published on 17 June 2024
A handy and simple tool to determine in a minimum time what is really needed as tug assistance, is the Bollard Pull Calculator which calculates in an approximate way the total required tug power for ships in various conditions of wind and current. This tool can be loaded as an app on the smart phone.
Video Operation of POD Ships - Discussion on Efficiency comparing Conventional and IN-OUT POD strategy
published on 8 June 2022
In this movie the efficiency of two different pod operation strategies is compared: With azimuth propeller ships the Pods can be used in two ways to control the speed, e.g. for speed reduction: 1. by adjusting the engine orders, e.g. by reducing the RPMs to get lower speed - this means to drive the ship in the same conventional way as for twin screw vessels, 2. by turning both pods either in- or outward (TOE-IN or TOE-OUT) to reduce the forward thrust and therefore reducing the speed – the...
Video Recorded Webinar: Pilot Ladder safety and Pilot Transfer procedures
published on 15 October 2020
Video History: Pilot Cutter (1953)
published on 18 May 2020
Southampton, Hampshire. Various shots of Trinity House pilot cutter "Penda". M/S pilot's bridge. M/S as Second Officer Harry Goddard leaves the bridge and walks along the deck to his cabin. He takes his cap off, sits down at a table and looks at an album. C/U of his collection of matchbox labels. M/S Goddard sticking in more labels. C/U's Goddard and album. Various shots as he sticks in the labels. M/S of Pilot Knight and Captain Jolliff seated at desk. A waiter enters their cabin and...
Opinion Pilots are not Advisors to Masters
by Karolina Cirjak, Consultant Master Mariner at KC Maritime Consultancy Ltd. - published on 30 November 2024
This article was first published back in February 2022: According to the International Group of P & I Clubs’ “Report on P&I claims involving vessels under pilotage 1999-2019”, over the last twenty years, there were 1,046 incidents in which pilot error either caused or contributed to those events.