Autor(s) Artyszuk, Jarosław
Date of issue 2013
Abstract The aim of the present paper is to determine the availability and main features of existing harbour tugs from the viewpoint of type and maximum bollard pull achievable nowadays. Particular interest is also focused on a tug's length as one of main dimensions representing the hull size. This length affects the manoeuvring area occupied by an assisting tug and expresses its basic turning and stopping performance. One can simply state that the involved manoeuvring area is proportional to the length. However, the same hull of a tug within the current shipbuilding practice, unlike in the past (when the higher propulsion power implied a larger hull) can accommodate propulsion units of quite different power. Thus, the higher propulsion power is installed the higher towing forces are achieved, and in addition the turning or stopping ability of a free-sailing tug is essentially improved. The conducted research is based on analysing the world fleet statistical data. The obtained results provide support for making operational and investment decisions by harbour authorities in the aspect of harbour modernisation or its traffic expansion.
Publisher Prace Naukowe Politechniki Warszawskiej. Transport
Title Types and power of harbour tugs – the latest trends.
Type Journal Article en_US