Tug Bollard Pull - Port Selection

Required bollard pull for assisting a ship at a port - a function of DWT and wind area.

TugBollard pullSelection

Vessel DWTdwtLateral wind aream²

Required BP per tug: 27t

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

BP = \max(DWT / 3000, A_{lat} / 200)

Symbol	Meaning	Unit
$BP$	Bollard pull	t
$A_{lat}$	Lateral projected area	m²

Source: ISPO Guidelines

In short

Required bollard pull for assisting a ship at a port - a function of DWT and wind area.

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