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Panope has the continuous tube thing.  Rudder shaft formerly extended above deck and into a steering gear box.  I sawed off everything, flush with the deck and welded a deck patch over the open tube. The new steering arrangement needed a below deck quadrant.  Rather than cut a complete section...

Panope's mast is water tight except for 3 bolts (in tight holes) near the partners. Submerged, the mast would have about 210 lbs. buoyancy.  Flooded with water, it would have a submerged weight of about 110 lbs. I have no AVS calcs, but I can sure see how a difference of 320 lbs., 18 feet...

Ya, Buehler,s wheel house could certainly use some refinment. But who am I to talk..........

Than Bieker 40 is very cool. Sort of a smaller version of George Buehler's IDLEWILD which had claimed (in 2005) the longest nonstop passage by a motor yacht. I reckon both would rely heavily on the paravanes to control roll.  Anyone have experience with paravanes in huge seas...

AR = Aspect Ratio.

Can the following generalizations be made about heavy weather survival? For running downwind and actively steered - Light boat/high AR spade rudder is better. For points above beam (hove to, fore reach, lie ahull) - Heavy boat/low AR barn door rudder is better. Disclaimer: I don't know...

Just to clarify, are we talking hulls like the old pilot cutters and "plank on edge" cutters? Lore as it that they could stand to ANY weather.  Maybe true? 

I like that Idea.   A recreation of the '82 Cabo disaster. If I remember correctly, most of boats that did not drag ashore were using CQR and Bruce.

Zonker DESIGNS the shapes.  I whittle and test (and film, of course).

I have an urge to whittle a hand full of hull shapes (with correct weight distribution and spar weights), take to the beach and see what happens.   Steve