Here is another sailing double ender. That's 12'X54"x35# hull wt. The whole rig, sail, halyard and all only weighs five pounds. This one has a Rushton Batwing canoe sail. There are some better pictures of it on http://members.ij.net/wctss/wctss/cedar.htm. You can see the sail there. It is 85 sq.ft. and also by Dabbler and is my favorite of all small boat sails. Can be reefed instantly while the boat is sailing close hauled.

This is the smallest and lightest two person sailboat we ever built. It is light enough for two people to carry up and hide in the bushes with all the camping gear. The reason it is finished clear all over like that is so it will be hard to see.