Check out John Winters' page for good info on this.

> I would like to know what an ideal hull shape would be for a
> racing/fast cruising single in glass/kevlar/carbon. I would like to
> produce a 20' boat that was approximately 20" wide at the cockpit.
> I know from a good deal of whitewater experience that speed and stability
> are inversely related. With a narrow boat like the one I've desccribed,
> would a shape similar to the classic Greenland hull suffer from excess
> drag? Is the turning advantage of hard chines going to take away from
> the sraight line speed.