"Jim Cate" wrote in message
...


Jeff Morris wrote:

Its funny, the drawing on the web site don't show this to be "double
hulled".
The water ballast is on the center line, not around the chine - it would be
easy
to penetrate the hull with a glancing blow to a rock.

Obviously the Mac don't have a complete double hull extending throughout
the hull and chines. (Does your boat?)

My boat has two complete hulls, running the full length.


But it does have what amounts to
a double hull extending along its lowermost section for most of the
length of the hull.

All this means is that there are some situations where there is some extra
protection. It does not mean you have the full protection that is implied by
"double hull." This is not a real "safety feature," it is just a marketing
claim.