: I need some input, thoughts, suggestions!!! I built a stitch and glue kayak
: based on the "Aston" as found in the Hulls program. Basic
: parameters are 15' 6" by 21-1/2" and roughly 11-1/2" tall.
: Got in, took a short paddle, wobbled back and forth and rolled. I am not a
: super experienced kayaker but I do own some plastics and have canoed
: hundreds and hundreds of miles, meaning I do have some abilities. This
: thing is down right tippy. First thought is, even though I weigh about
: 190lb. this thing is riding way up on top of the water and I need some
: more weight. I just jumped in blind as far as building this thing, but now
: I have some time in it and would like to salvage it. I will try to upload
: a picture if that would help. Thanks, Mike

21 1/2" wide is awfully skinny for a boat that short. I suspect that instead of sitting too high in the water that you're sinking it well below it's designed lines and that's adding to the instability. A boat that narrow and that short would normally be designed for a pretty small person.

Bill H.