On Thu, 03 Aug 2006 12:11:06 -0500, Dave wrote:

On Thu, 03 Aug 2006 12:52:05 -0400, thunder said:

No, but you can un-heel them to reduce draft. If you are sailing heeled
and run aground, the single keel will want to dig deeper. With the twin
keel, on the other hand, draft is lessened as the boat rights itself,
perhaps, by enough to free itself.

Have you ever sailed one?

No. I was interested in the concept, the shallow draft particularly, but
after some reading on them realized the disadvantages seem to outweigh
the advantages.