Originally Posted by 44'cruisingcat
I have an extreme racing
boat????? (On SA/Disp)
If you are refering to this:
16 to 18 Heavy offshore
18 to 22 Medium cruisers
22 to 26 Inshore cruisers, racing boats
26 to 30+Extreme racing boats
That does not work with a multihull
. That is SA/D......For example, if I plug
in my boat at 650 Sq. Ft. and 7,000 displacement I get SA/D 28.42.....same as an extreme race
But the same numbers give me a Bruce # 1.33 Right in the range of good cruising numbers. Big difference.
If you plug in a real bad boy from Nigel Irens. His race/cruise boat comes in at Bruce # 2.09 ! SA/D of 69....yikes!