I totally understand that, its just that the location the keel is being held at by the frames in the photos is outside of the shape defined by the offsets.

thanks, Joe

: You have to suspend the idea that the frame is actually the same
: shape as the hull. It's not. It just holds the stringers which
: in turn determine the shape of the hull/deck. As said above, the
: gap allows for less chance of abrasion of the skin on the frame
: - which is why you also have the curvatures in the frames
: between stringers.

: Hope this makes sense,

: Sean