I have tried unsucessfully to reach the owners of Bob's boat and Bob as well. In examining the pictures it was the older style of vertical vane. After much research I was talked out of using this older technology in favor of a pendulum style vane.
Got a little distracted with work and ice sailing. Check out this boat I was able to sail last weekend. It steers using the sails only, jib for downwind and main for upwind. It was designed to be able to sail on ice or water in the late 1700s.
Bob
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