The term human powered boat or hpb can refer to rowboats, paddleboats, canoes, kayaks, or even rowing shells. we focus on unique and innovative home-built or. Specializes in stitch and glue, epoxy/wood composite designs for sailboats suitable for home builders. also offers a boat building video and book.. Prepare to be amazed by the treddlecats revolutionary foil action which generates more speed, more fun, for the same effort. two people are easily able to.