Video

The difference between Gross Tonnage and Net Tonnage


published on 14 July 2020 988 -

Found on YouTube. Created by "Steering Mariners".
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).
What's your opinion on this?
Login or register to write comments and join the discussion!
Read more...

Video Rare 1865 Great Lakes Coast Pilot Restoration - Episode 1

published on 12 November 2020

Join Great Lakes maritime historian and antiquarian Brendon Baillod as he discusses the restoration and conservation of a rare and very early 1865 Thompson's Great Lakes Coast Pilot. Early coast pilot books were kept on every schooner and steamer and Lakes and contain important details about the history of harbors, navigation, obstructions and shipwrecks on the Lakes. This 1865 Thompson's is among the rarest and also badly in need of stabilization. Enjoy this two part series where this...

0

Video Discussion on Wind effect - drifting with no propulsion, only thrusters

published on 11 July 2020

Theory on Wind drift will be shown together with demos using SAMMON planning on the effect of thrusters to have some effect on drift speed & direction

0

Article IHO Nautical Information Provision Work Group endorses Guide for Nautical Data 2.1

by IHMA - International Harbour Masters Association Secretary IHMA - published on 30 January 2025

During a meeting on 4 December 2024, the International Hydrographic Organization Nautical
Information Provision Work Group (IHO NIPWG) held a vote on the new Guide for Nautical
Data 2.1. The guide was unanimously endorsed.

0

Video Wind drift making headway - practical experiments for getting useful data for planning

published on 30 May 2022

Another great education video by Knud Benedict (Germany): Practical experiments for getting useful data for planning.

0

Article GPS (Part 1) - Structure, mode of operation, technical and physical fundamentals of GPS

by Capt. Gunter Schütze, Thailand/Germany - published on 30 January 2020

Of course, as a Nautical Specialist, I also deal with the international discussion on the advantages and disadvantages of satellite-based navigation, e-navigation and conventional terrestrial and astronomical navigation.

0

Article Survey: Sustainability in Maritime Pilotage

by Ship senior pilot Seyed Behbood Issazadeh - published on 21 August 2025

The maritime sector is experiencing a significant shift due to escalating environmental issues, changing regulatory frameworks, and heightened public demands for sustainability. During this transformation, marine pilots are essential;

0

Opinion Sea Trials in Stroms at the Entrance to Cork Habour

by Safehaven Marine - published on 3 March 2020

The entrance to Cork Harbour situated on the South coast of Ireland can produce some pretty extreme sea states during the winter storm months. There are two main factors that influence the sea state at the entrance, the first being the ebbing tide, the second being shoaling waters over the Harbour Rock, this is situated at the entrance to the Harbour off Roches Point lighthouse, right in the middle between the Western and Eastern channel entrances.

0

Video Muir Pilot Strait Of Canso

published on 4 March 2024

Pilot boat "Muir Pilot" departing Pirate Harbour

0

Video A Day Aboard Pilot Boat Collingwood | Guiding Ships in the Port of Tyne

published on 10 March 2025

Join us for a behind-the-scenes look at the vital work of the Port of Tyne pilot boat crew aboard Collingwood! From sunrise to sunset, these skilled mariners navigate the River Tyne and the North Sea, ensuring the safe passage of massive cargo ships, tankers, and ferries.
Watch as the crew battles the elements, transfers pilots onto moving vessels, and keeps the busy shipping lane running smoothly. This is a rare glimpse into the teamwork, precision, and dedication required to guide ships...

0