Education: Effect of Drift Force and unstable moment

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!

This video is an extract of some elements from lectures by Knud Benedict on "Simulation" as part of the seminars provided by the IALA World Wide Academy on the use of the "IALA Toolbox for Port & Waterway Risk Management".

Another very good explanatory video by Knud Benedict. Absolutely worth seeing.
Yaw Stability is an important element of Ships Manoeuvrability - both for course keeping and turning ability. This first video in a series explains the Basic Principles of stability in steady state equilibrium conditions and the forces / moments involved

This video provides the detailed explanation of the phenomenon showed in Part 1 of this topic and a solution for this problem at the end. This phenomenon was recently disocovered by Dr. Steve Shaojie Tang and published in his book by Faiteve inc in 2018. The book info can be found at Faiteve inc https://www.faiteve.com/ The testimony of the captain on duty in the public hearing of Golden Ray capsizing at https://livestream.com/uscginvestigations/events/9252896/videos/211109207 in the time...

The Master and pilot are dependant on each other for a safe and successful beginning or end of a voyage. They are both operating in a foreign environment.

Improvements to pilots’ situation awareness (SA) in maritime navigation are critical to reducing human errors, which have caused 75% to 96% of marine accidents over the last few years.

A new 1:25 cruise ship manned model, the "Voyager", was added to our fleet in 2014. She is 311 m long and is fitted with 2 azimuthing pods (and one Fixipod) and powerful bow thrusters. Training is conducted in emergency conditions like engine failures, crash stops, tight turns ...

This updated video shows how easy it is to develop an arrival plan with the SAMMON Planning Tool. As a sample the arrival from appraoch until the berth to Ft. Lauderdale is used under strong current of 2kn. At the simulator training courses where we used this tool for preparation of a manoeuvring plan during the briefing sessions all nautical officers involved stated afterwards: "Why don't we have this tool on our ships?"

Flying from Shortlands, following the beautiful HM Orc 181 "Nepean" Flying to the very edge of VLOS helped by the elevated position in the carpark, also helped by a good strong coffee from Hesse St! Little known fact, when I was a small child I went out in the Pilot boat from (dad recalls) Gem Pier in Williamstown! I only remember being a bit scared and that's about it. Learn about the Port Phillip Sea Pilots here - https://www.ppsp.com.au/story/ Learn more about the pilot boat here:...

View from the Bridge as the pilot navigates our 24,000 TEU vessel through the busy shipping channel safely to its berth. HMM thanks all the Pilots, Tug-Masters and Berthing Gangs for their important role in the safe passage of our fleet.