altair industries driftboat plans altair offers complete plans and a construction guide for a 16′ mckenzie river drift boat. (added: 2-dec-2003 hits: 45048) my. 13′ western style drift boat; 14′ stitch and glue kayak; 18′ carolina style dory; 14′ midwestern style drift boat; 15′ ultralight stitch and glue dory. Spira international wooden boat plans. following are the stock plans available for the various types of boats, separated into the different categories..