In the back of Nick's book there is a discussion about scaling, and a series of formulas that adjust form spacing to generate different lengths without lousing up the physical characteristics of the design. It may take a little head scratching, but they work as advertised. If you have trouble, email me and I can send you an Excel spreadsheet that has it all worked out.

> I could swear I'd seen some discussion about stretching the Guillemot
> single to an Expedition Single but I can't seem to find it anywhere. I
> considered just buying the full-sized plans but the experience of lofting
> the single from the offsets in Nick's book REALLY helped me get a feel for
> the design. I've got a pretty good feel about Nick's discussion (in his
> book) about adjusting the length but I'm a little lost on the rest. I'd
> hate to screw up the BEAUTIFUL lines on these boats. Any suggestions?