Vang/preventer: a fast, effective safety device
"Vang/preventer? We knew of no existing term for this rigging, and we had to call it something. On Mystic, the vang/preventer is a pair of 4:1 tackles leading from mid-boom to the port and starboard toerails just abaft the stays. A single control line runs from both tackles aft through fairleads and cam cleats port and starboard of the helm. Because there is only a single line, as the boom swings off, line taken by one tackle is given up by the other, so very little excess line clutters the cockpit. A flick of the wrist controls the boom."
(Submitted by Noel Sun Aug 8, 2004 )
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