Mic wrote:
http://home.cfl.rr.com/irwin104/specs.html

Foresail SheetLoads
100% Foretriangle @ 30 Knots: 834.8 lbs
100% Foretriangle @ 35 Knots: 1136.3 lbs

That's just plain silly. An Irwin 10/4 is not going to be
carrying a 100% jib in 35 knots of wind, nor a 150 in 20 knots.

Fresh Breezes- Doug King