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The jockey pole is used, especially on bigger boats,
to get a better pull angle for the guy and to keep the
guy away from the shrouds. The preventer stops the
main boom from whipping across the cockpit in an
uncontrolled gybe. This is one of the most dangerous
incidents that can happen when sailing. Normally the
preventer is attached to the boom at nearly the same
point as the main sheet. It is then led forward to the
stem to obtain a good pull angle to the boom and a
more elastic system, through a block or around a
cleat and back to the cockpit where it is cleated.
NB! A quick release method is essential for all
preventer types. Also use a preventer when on or
near a dead run when using the genoa as headsail.
Alternatively the sheet may be moved to the rail as
shown on the figure. But a dedicated preventer is
advisable, even if it does not lead all the way to
the stem and back. Always ensure that it can be released quickly, preferably from the cockpit. |
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