Thread: Discussion IOM General Discussion
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Old Dec 29, 2009, 05:21 AM
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Blackpool, Lancs
Joined Feb 2006
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Or double the line back on itself at the boom end to halve the travel and double the torque.
With a sail arm, doing the same thing at the arm end of the line will double the travel at the expense of reducing the torque.
The non-linear travel of the arm can be used to advantage. If the arm is arranged so that when the sails are fully pulled in, the arm is facing directly away from the line's feed point, you get the biggest arm travel for a smaller boom travel just when you need the most torque.
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