also -- if the windward hull carries the rig and is rising on a wave in a beam reach situation the leverage available to drive the bow of the leeward hull under increases

--- In harryproa@yahoogroups.com.au, Mike Crawford <mcrawf@...> wrote:

  If the rig is in the windward hull, that 23,400 lb-ft of moment needs
to be translated through the beams into the leeward hull so that it can
resist that pitchpoling moment.  That means torque going through each
beam.  Personally, I'd say that 23,000+ lb-ft of torsion is not a
marginal load.