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

The Bollard Pull value, which can be interpreted as the maximum thrust that is developed for a specific amount of time by the propulsion systems of any vessel to the fullest , when it has zero speed in the forward direction, is the criterion that allows us to understand how suitable a tugboat is for a port maneuver or a towing operation.

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 ...

Port operations, whether these are being performed on water or on land, are often not without risk. Pilots boarding a ship while sailing, navigating through narrow passages, collision avoidance with other smaller or larger vessels, discharging and moving cargo on land, walking between container handling equipment and trucks…

On the occasion of the Maritime Safety Week (July 4-10), UK MAIB’s inspector Bill Evans refers to the issue of unsafe pilot ladders, a concern that has been regularly voiced by the industry.

Training video VI on the correct use of the pilot ladder

Three pilot companies operate launches from Queenscliff. They take pilots to and from the shipping that comes through Port Phillip heads to the ports of Melbourne and Geelong.

Vessel's details: IMO: 9496915 Name: POLARIS Vessel Type - Generic: Pilot Vessel Vessel Type - Detailed: Special Vessel Status: Active MMSI: 245142000 Call Sign: PBZN Flag: Netherlands [NL] Gross Tonnage: 2501 Summer DWT: 890 t Length Overall x Breadth Extreme: 81.2 x 13.3 m Year Built: 2012 Home Port: ROTTERDAM Geo location: 51.980840, 4.112364