There is a problem with the DWL. It is indeed off by two inches. Choose a location for the strongback and stick with it. Without checking, I believe the higher location works better.

> Well, I finished the first stages of building my Arctic Tern, and now just
> need to do the hatches and varnish it.

> However, I realized while paddling it that there is one major problem, it
> only fits one, and I need another boat for my wife and newly arrived son,
> so I am getting set to build a Guillemot Double...

> My question is this:

> I have drawn out by hand all of the forms (not too difficult really!), and
> am getting set to place the holes for the strongback.

> However, on page 57 of Nick's wonderful book, it advises to place the 2x4
> strongback 2" higher than the design waterline (DWL).

> On the next page, there is a drawing of the end forms indicating, to my
> tired and blurry eyes, that the strongback cutout bottom is on the DWL,
> instead of 2" above it.

> Can someone reconcile this for me, or advise me the best position for the
> strongback? Thank you very much!

> Jerry K