July 31, 2010
Very neat execution by Ray Joyce of an experimental ‘mode’ control system. It closes the exit of the mainsail automatically when the boom is on centreline. This allows a standard ‘open’ setting for acceleration and reaching to change into ‘pointing mode’ once the boat is up to speed close hauled. The standard four rigs are...
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Carbon/foam sandwich jib booms were chosen to maximise jib efficiency and allow ‘finite’ adjustment arrangements using notches and pin/hole systems. The jib boom swivel line goes through a fairlead in the top skin of the yard and is anchored through the bottom skin. This is to maximise length for the required twisting of the line....
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