Former “Rhine” calculations now integrated Hulldef/Hydrotables
Container ships navigating the major European inland waterways should comply with the ES-TRIN 2017/1 standard. Since the 1980s PIAS contains a dedicated module, named Rhine, for this regulation (and its predecessors). This module has now been discarded, for all its functions have been relocated to other PIAS modules.
All input can now be done with Hulldef, the applicable stability criteria can be set in the regular fashion, while Hydrotables will produce the required table of maximum allowable VCG.
As alternative to the approximation formulae from ES-TRIN, it is now also possible to compute the maximum VCG with direct calculations on basis of the foundational stability criteria.