There was a little pedal boat designed by Gary Hoyt called the "Water Bug" I think. Instead of the typical paddle wheel it used a propeller. The whole thing was shaped kind of like a big 3-d teardrop complete with sliding Plexiglas canopy.
If I recall correctly from the old national geographic articles about human-powered flight the typical human being can put out only about 1/2 horse at fairly high effort so such propulsion would only be helpful in very mild conditions and for limited times. Tod _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
