Notice the rectangular interlocking "tabs" between joints.
A nice website and this photo is very appreciated to show the Nigel Dennis method of triple-piecing a sea kayak.
An unbiased source of information and experience with take-part, sectional hard shell sea kayaks. CLICK "OLDER POSTS" AT BOTTOM TO SEE PAST POSTS!!!! CLICK "OLDER POSTS" AT BOTTOM TO SEE PAST POSTS!!!!