In searching for more about the Greenhorn I (covered in PassageMaker Magazine recently) I began to search for the designer, David D. Beach. There are quite a few of his vintage plans available out there (search at Toad Hall), with the Herculette being a nice example.

The Sandy Point Boat Works people have one page with plan drawings and a nice picture, while The Press at Toad Hall also sells the plans. Their web page includes a more detailed writeup by the designer with more line drawings..

Length overall = 25 feet
Beam = 10 feet
Bare Hull weight @ 1200 lbs
Hull type = displacement
Power = inboard engine @ 40 HP