Opinion What is a Tug's Bollard Pull and How İt is Calculated?
by Capt.Alpertunga Anıker - published on 24 November 2022
The Bollard Pull value, which can be interpreted as the maximum thrust that is developed for a specific amount of time by the propulsion systems of any vessel to the fullest , when it has zero speed in the forward direction, is the criterion that allows us to understand how suitable a tugboat is for a port maneuver or a towing operation.
Video Serious Injury to Pilot video by Maritime Training Services
published on 13 December 2019
Article Dissertation: Reducing the subjective impact in maritime simulator assessment (2020)
published on 14 October 2021
Article e-book and international book order available: "Theory and Practices of Marine Pilotage" by Capt. Santosha K Nayak
published on 7 August 2020
This book was only available in some areas, now the author has created an e-book version. Furthermore it´s available on amazon as a paperback.
Completely new book on Ship manoeuvring techniques based on new revealing facts which have been brought to light. Must read for all the mariners to understand the behaviour of ships and how to control her behaviour during manoeuvring.
Video Spiral-Test -Manoeuvre for detailed identification of Yaw Stability using Samples of Cruise Ship
published on 29 September 2021
This video shows an introduction on the Spiral-Test-Manoeuvre and describes the procedure how to steer through this manoeuvre and measure the data needed. The results will be displayed in a characteristic diagram allowing to identify stable and unstable conditions and related, detailed information, e.g. spiral loop width and height, rudder angle of neutral effect. Samples of stable and unstable ship behaviour demonstrations will be shown by Fast Time Simulation using the SAMMON Planning tool.
Video THIS is Safehaven Marine Interceptor 60 PILOT BOAT
published on 19 November 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