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).
Video CHIRP Pilot Ladders (Landscape)
published on 13 December 2023
Video Discussion on Wind effect - drifting with no propulsion, only thrusters
published on 11 July 2020
Video Wind pure drift encounter - practical experiments for getting useful data
published on 8 July 2022
How to get information for wind & current limits to be potentially encountered by thrusters – or current? - this will be described in this movie:
- Measure Drift speed, due to beam wind with no propulsion;
- Measure drift speed using full thrusters
- Estimate wind & current limits to be potentially encountered by thrusters – or current...
- Finally there is a simple formula as Rule of Thumb: the transverse drift speed is about 7-8% of wind speed!
Video Pivot Point Demo - HS Wismar
published on 10 July 2020
Video You Won’t Believe How A Pilot Boat Is Hauled Out for Refit
published on 24 September 2025
The Pacific Guardian pilot boat is first seen in Victoria Harbour near Ogden Point before making her way to Point Hope Maritime Shipyard for a full refit. This video captures the entire move process, from the cradle lowering into the harbour, to the careful docking of the vessel, to her move across the turntable and onto the spur line. Some of the footage has been sped up, since the cradle lowering and lifting are slow, deliberate operations where every movement is checked and rechecked....
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
Video Pilot Talks...! Pilot ki Baat. Episode 5
published on 8 April 2021
Video Dublin Port | Pilot Operations
published on 2 November 2021
DPC provide a Pilot Service for vessels visiting the port, the service involves putting on and taking off Pilots from the vessels both in port and at sea. Only personnel who are qualified, trained and passed out as competent in their respective roles are involved in this operation which will normally involve a Coxswain to helm the boat, a boatman to look after the deck operations and ensure the safety of the Pilot throughout the operation. Following correct procedures and utilising all...