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Flexible squat calculation

A large ship transiting a narrow channel

With PROTIDE ports can optimize accessibility while constantly checking keel clearance safety. An important factor in dynamic keel clearance calculations is the ship’s sinkage and trim: squat. There is a wide range of research on the various parameters that affect squat.

It is important to select the proper squat formulas and parameters for the different transits. It can also be necessary to model squat differently on different parts of a trajectory. In our latest work we added the option to configure the squat model and parameters for each part of each transit individually. The output is also extended to give direct insight in the effect of the chosen model on sinkage, trim and the resulting under keel clearance.

For VTS-Scheldt we incorporated a formula by Flanders Hydraulics Research specifically calibrated for bulk carriers traveling to and from North Sea Port, Flushing. PROTIDE, with this dynamic methodology, is used to model all transits via the Western Scheldt.

The squat configuration and result retrieval can be done via the new API v2.1 shipped with PROTIDE v7.8.