see it clearly

Sailing Catamaran

The catamaran is the original and oldest type of boat. It was the first crude attempt of primitive man to control the direction of the log upon which he desired to float. Later, perhaps hundreds of years, the one log affair developed into a craft that consisted of three logs lashed together and pointed at the fore end, just like a gigantic toy boat that a ten-year-old boy would whittle out of a shingle as big as the side of a woodshed.

Sailing Catamaran

The plan shown here is copied after the ancient idea and is intended for use at a summer camp or swimming hole. The main part of the craft is two logs ten feet long and fourteen inches or more in diameter. If you camp near a lake or river it is probable that you can find fallen trees conveniently located for the purpose. Taper them down with an ax and lay them on a low bank two feet apart. The manner of placing the cross-braces is shown by Fig. 2. Spike them well and then drill holes with a long bit one inch in diameter. Into the holes drive tight-fitting wooden pegs. You can make it very strong and rigid this way, for all the old-time houses in this country were built with wooden nails. In Fig. 3, there is represented a lee board nailed to the end of the fore brace or thwart. The boards, there is one on the other end of the same log, dip down into the water and serve the same purpose as the centerboard of a sailboat, that is, to keep it from drifting sideways or capsizing. An oarlock on the rear cross-piece serves as a seat for the rudder oar. This oar may also be used for sculling. Fig. 6 shows the detail.

Fig. 4 shows the sail plan and dimensions clearly. Fig. 5 shows the cleat by means of which the boom of the sail swings on the mast. A heavy wire ring directly above this cleat is marked X. The mast is a hickory pole eight feet long and four inches in diameter. The lower end of it is squared and sunk into a square hole, a few long nails being toed in to steady it. The mast is then braced with wires leading from the top to the log platform.

There is a world of fun in this homely craft, but, it is needless to say, you must be a good swimmer if you want to go into deep water with it.