As we all know, a boat’s lateral profile determines both its primary and secondary stability even more than its beam. How is it then that, in manufacturers’ ads, we only see photos of the top of the boat and maybe a longitudinal shot but never (at least in my experience) see a lateral profile?
assumptions / guesses
I can think of a few reasons (in no particular order)
-Some manufacturers may feel it would be revealing too much design info for competitors to use.
-Manufacturers may feel showing the cross section doesn’t add much value toward selling the hull. Perhaps even scare off some customers.
-Maybe it’s a cost or “tradition” thing
-It could be the manufacturer feels showing the cross section at one location doesn’t properly represent the hull. Wenonah shows their cross sections but think about the cross section of an efficient canoe versus a roto-molded SOT kayak.
-Many more reasons out there.
I personally always show the cross section on my designs. I think it helps sell the product but I could be wrong.
Matt
JEM Watercraft
http://www.jemwatercraft.com
profile…
My guesstimate would be 99% of the people viewing those ads have no idea what a lateral profile is or what it means or how to read and accurately interpret the info.
I myself, having only seen a few of those diagrams, have a hard time interpreting them. All said and done , most people are only interested in how easily the boat paddles, stability, and cost.
Probly same reason I didn’t publish
my profile, and you don’t publish yours. 
We-no-nah does
you did publish yours
Didn’t until I did.
we all know this?
I haven’t found them accurate. They
look more to me as if they are sketches by the designer.
Yeah, I though it was waterplane area.