This book investigates the science behind each component of manoeuvring a ship in confined waters, especially in port limits and the art to master it. Based on practical observations and analysis of each major and minor aspect of the manoeuvring of different types of vessels in different types of situations, this book put all relevant knowledge together for the reference of all concerned with pilotage and ship handling.
Required tug power and number of tugs needed in variable conditions of wind, current and waves isin most cases an assessment made by pilots based on their professional experience. However, assessments will raise questions by lawyers if something goes wrong. They will use tools to calculate what really is needed with respect to tug power and number of tugs. They have furthermore the advantage of time.
An unfortunate turn of events for the 117 year old Tugboat James Whalen...
Music "Morning Blue" "Fight the Sea" by Josh Woodward www.joshwoodward.com
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Outdoor Rob Adventure Channel
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!
