: Lengthening the boat can increase stability. Increasing the volume may make
: the boat float higher which will raise the CG thus decreasing the
: stability, but it does other stuff as well.

: Initial stability is due to area on either side of the centerline. If you
: look at a plan view of the waterline while hold the width the same, and
: increase the length, you will see that the waterplane area increases. The
: result is generally higher initial stability.

even not holding the width the same would mean coming up w/ some wierd sections to get the area less, so i see what you mean.