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BOAT WITHOUT A RUDDER

Saturday October 11th, 2014
Look, no rudder.

When the first Europeans went to Peru in the sixteenth century, they found the Peruvians had large sailing rafts 100 feet long with bipod masts, no keel or rudder but which tacked perfectly well due to dagger boards at either end of the vessel.

By raising or lowering these boards, the boats centre of gravity was altered so that it could tack through the wind. The idea was recently adopted by a Polish boatyard and adopted for modern yachts to aid balancing the boat.
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