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).
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Video Simplified Vector Approach for POD forces – samples and limitations

published on 23 February 2022

This movie belongs to the operation of ships with POD propellers and discusses the approach for using a vector model from only the pods’ thrust forces as resulting force to imagine the potential effect of the pods on manoeuvring motion.

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Video Zig-Zag-Test-Manoeuvre for Yaw Stability, IMO Manoeuvring Standards and Crash Stop

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Another valuable explanatory video by Knud Benedict:
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Video Safe at sea with satellites (AIS)

published on 5 June 2020

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Recommendation by Marine-Pilots.com
AIS services are offered by, for example:

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published on 16 November 2021

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Video Navigator Project - Hike Metal

published on 11 January 2022

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published on 19 January 2023

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published on 6 April 2021

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