A handy and simple tool to determine in a minimum time what is really needed as tug assistance, is the Bollard Pull Calculator which calculates in an approximate way the total required tug power for ships in various conditions of wind and current. This tool can be loaded as an app on the smart phone.

This video provides another possible physics that could also cause the Ro/Ro Ship Golden Ray to capsize in 2019 in a very benign environment. At the time of this video posted, Golden Ray salvage is still going on and the cost of this event was estimated to pass $3/4 billion so far.
The book info can be found at Faiteve inc
https://www.faiteve.com/

This video complements the earlier demonstration of wind effect on straight track and shows now wind effect on turning circles. It can be seen that during a turn under strong wind the ship reduces turning when it comes close to equilibrium on straight track - if the Wind-to-ship speed ratio is big enough then the ship even goes straight instead of turning. This is shown for three samples for Head, Stern wind and Beam wind. The turning can be increased if the ratio of Wind speed-to-ship...

Nautical Institute webinar, 13:00 – 14:30 UTC on Thursday 31st March, 2022.

This video shows an introduction on the Pull-out Test-Manoeuvre and describes the procedure how to steer through this simple manoeuvre: Turning circle and then put the rudder amidships. The final rate of turn allows to identify stable and unstable conditions.

In the second of our series focusing on ‘Our people at ports’, we catch up with Pierre Chays, our Marine Safety Manager and Pilot who gives us a behind the scenes look at what our Harbours Team is doing during these difficult times in supporting the movement of essential freight services in and out of the Island. For him, it is very much ‘business as usual’ – and outside of his working hours he’s getting used to having another baby around the house.