Description of "Bollard pull calculator for marine pilots" application:


The Pilot’s Tug Assist Tool (PTAT) is a handy and simple tool to determine in a minimum of time what is really needed as tug assistance. It calculates in an approximate way the total required tug force for ships in various conditions of wind, current and waves.

The tool is based on the calculations and graphs as explained in chapter 5 of the book “Tug Use In Port”, written by Captain Henk Hensen FNI; first published in 1997 by The Nautical Institute, London, UK, with a 3rd edition published by The ABR Company, UK, in 2018 (www.tugandosv.com).

Important note: Please note that data provided by the application are based on theoretical calculations. The calculations give an indication of the required bollard pull and should always be handled with care.