What is a “dolphin striker”?
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Congratulations to Dana Truslow, Dana Point, CA, who correctly identified a “servo-pendulum” on a cruising boat. “On a wind-vane self steering device like a Cape Horn, Monitor or Sail-o-Mat that uses the power of the passing water to steer the boat, the servo-pendulum is the oar that it turned by the wind vane that in turn uses the deflection into the passing water to turn the boat’s actual main rudder with via guy lines or a direct link to the rudder post.”