altair industries driftboat plans altair offers complete plans and a construction guide for a 16′ mckenzie river drift boat. (added: 2-dec-2003 hits: 44816) my. Fenwick williams catboat work done by michael storer boat design. change scantlings for simpler construction in cedar strip; optimize foils; design a birdsmouth. Another great project for the lake house, this canoe boat rack plans set is from our free shed plans collection. make it easy with our step by step guide. this is.