I suppose I was principally replying to Luc’s thoughts concerning lowering the mast either to leeward or windward, the latter being the only acceptable choice from my perspective.  My actual preference is to telescope reef the mast.  Forces are more self-contained if this can be efficiently set up.  My interest in the hydraulic tilting mechanism arose as a means by which to: firstly, fold a large multihull and secondly right the craft in the event of a capsize - once conditions have abated somewhat.  The latter option is more practical in the trimaran configuration.  That said, it still entails significant challenges as the amas would need to be swung through virtually 90 degrees.  In the case of righting a fully overturned weight to windward proa, I have doubts that it's even possible.  The mast would have to have sufficient buoyancy, when rotated under the weather hull, to lift this hull clear of the water and through 180°.  It is not possible that such a craft would remain upside down with the mast in the vertical position to begin with. Basically, the crossbeams would have to hinge and fold inward in order to significantly reduce the re-righting moment.  Further complexity, the only consistent benefit of which would be cheaper mooring fees.