I am in the process of designing a hull for use in the shallow glacial rivers near my home in Alaska. The hull must be light weight, carry a payload of 900 lbs, and be powered by a 65 hp outboard with a jet unit attached (about42-45 output hp). I am at present re-designing the bottom configuration of the Delvin Snowgoose stitch-and-glue plywood boat to be a satisfactory quick planing hull. After re-reading several of the responces to my inquiries for help in such matters as calculations of deadrise and floatation, I have come to question whether a Stitch-and glue hull will be strong enough for the constane flexing and pounding that shallow river runing will produce. How does stitch-and-glue construction compare in strength to plank on frame construction??