I so love this kind of things...
I read some things scattered around the net about the ursa and the possibility that the design was somewhat taken into consideration when the Mariner guys were working on the Coaster (i love that one). But i never found much on the theory behind the concept, seen pics where ursas were used for camping etc.
Wouldnt the wind bug that hump on the back?

: Here is an interesting design that I recently completed - it was designed by
: and built for Robert Livingston (many of you know of him through his
: Bearboat Pro boat design software). He has incorporated some (thinking out
: of the box) features with this boat that are provoking and unique.
: Robert's pedigree includes having a hand in the design of the Mariner
: Coaster (and we all know how well received that kayak is).
: Anyway, building it required some tricky stripping. I've included a link for
: those who wish to view it a bit further.
: Joe
: Redfish Kayaks