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Bollard Pull Trial Code
For Tugs With Steerprop Propulsors

Trial Procedures

Corrections


Correction factor for shallow water
and short towline

Correction for Shallow Water and Short Towline

If it is not possible to fulfil the requirements of minimum towline length or the requirement of minimum water depth below the keel according to this code, the measured bollard pull shall be corrected using equation (3) and a correction factor obtained from the figure to the left.

BP = k1 * BPm (3)

where

BP = Sustained bollard pull
k1 = correction factor from the figure above
BPm = Measured sustained bollard pull


Bollard Pull Code
Introduction
General
Trial Site and Vessel Requirements
Environmental Conditions
Trial Procedures
Bollard Pull
Corrections