This boat is easy to build using our downloadable boat plans. our boat plans are available for instant download so you can start building right away.. 4 planing vs displacement boats there are two re-occuring questions that we hear from our customers. "can i put a sail on (name of planing boat)?". A slim sweet hull for experienced paddlers "lorna", the inspiration for this design, was built about 1900 by the j.g.brown mfg. co., lakefield, ontario, canada..