"Terry Cano" writes:
snip

I would like to build a 10 + ft Sail Boat suitable for the larger lakes
around
Southern Cal.
snip

here's the big question I'm 310 Lbs with my wife 460 Lbs and want to
figure
out the weight capacity is there a formula

Bottom line, you can't get there from here.

At 310 lbs, you have two (2) options:

1) Start looking at larger boats.

2) Take off about 60-80 lbs if you only want a smaller boat.

Don't mean to burst your bubble, but the above is reality.

BTW, my weight has nothing to do with the choice I made for the boat I'm
buildingG.

HTH


--
Lew

S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
Visit: http://home.earthlink.net/~lewhodgett for Pictures