General
Bollard
pull trials are conducted in order to determine
the static pull that a tug is able to employ in
operating conditions. To enable fair comparison,
the trials are not performed in typical operation
conditions (e.g. shallow and confined harbour basin),
but in conditions as close to ideal as possible,
i.e. in conditions where the environmental and external
effects are minimised. This code introduces the
minimum requirements for trial site, vessel state
and environmental conditions as well as the actual
procedures for conducting the trials and definitions
on bollard pull, to be used on tugs equipped with
Steerprop Azimuth Propulsors.