What happens during a snapback event?

In it´s August 2022 monthly safety scenario, the Swedish Club describes an accident where a pilot had fallen into the water, after one of the side ropes of the ladder broke.

The National Transportation Board said Thursday that a Mississippi River towing vessel’s pilot and its captain pushed its tow up against a riverbank too close to a railroad track, leading to a collision and train derailment near Galland, Iowa.

Container vessel ALDIVIA (IMO 9333395) was dangerously close to public beach at Vlissingen Netherlands, on May 21, while heading out to sea, en route from Antwerp to Helsinki Finland.
The cause of dangerous approach is unknown, but the ship wasn’t detained, she continued her voyage.

The Norwegian Coastal Administration mobilized according to their contingency plan against acute pollution, salvage crews managed to get on board the drifting vessel Eemslift Hendrika and managed to connect it to the two tugboats, and the vessel is now being towed to harbour in Ålesund.

Part one report on the collision on 8 November 2018 between the frigate HNoMS Helge Ingstad and the oil tanker Sola TS outside the Sture Terminal in the Hjeltefjord in Hordaland county

Pilot boarding submarine HNLMS Bruinvis at North East Spit pilot station.
Pilot Captain Chris Renault.

Let us start a journey back in time. Back to the black and white films of history. The times have changed, but it is good to know what kind of things have changed and where are the roots of pilotage.

A pilot boat entering the port of Miami.

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.