WRT the ability to roll with or without mast, I commend the Heavy
Weather Sailing (Hiscock and Coles) treatment of the subject, complete
with tank tests, for your perusal.

Ironically, the deeper the keel, the more likely, in certain
circumstances. So, the lowly Mac26 might actually bob (pardon the
pun) rather than rotate when faced with the appropriate breaking
wave...

FWIW, the usual damage comes on the leeward side in a breaking wave
situation which causes knockdown or rollover conditions (ibid).

L8R

Skip

Morgan 461 #2
SV Flying Pig KI4MPC
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