"Darrel Toepfer" wrote in message
.. .
Dave Stadt wrote:

Actually a boat with 3 keels would be horribly slow.

2 are faster than 1, I'd bet 3 shallow beats a single deep one,
especially when it just has 2 in the water in a strong wind...

You are missing the technical definition of a keel boat. Tri hulls and
Catamarans are not keelboats. Deep displacement sailboats without moveable
centerboards are keel boats.
--
Jim in NC