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post #1 of 5 Old 08-07-2007 Thread Starter
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jibe preventer

any good sketches around for a simple preventer for accidental jibes?i really don't like dead runs but would like to be ready if the situation calls for it. boat is only 23 feet long.
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post #2 of 5 Old 08-07-2007
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You can use a simple preventer line, run from a forward point on the boat back to the boom, but you would have to undo this line each time you gybe or the wind shifts, and the preventer could cause some serious problems if the wind does shift drastically, including pinning the boat rail down to the water.

I highly recommend using a boom brake, although it requires a bit more capital initially. However, a boom brake is safer in many was than a preventer line, since it will allow the boom to move, albeit rather slowly and in a relatively controlled manner. MVBinfo.com has information on the Dutchman Boom Brake, which is one of the better ones around, and the BB500 is the model I have installed on my boat.


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post #3 of 5 Old 08-07-2007
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here you go.

Hope it helps

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post #4 of 5 Old 08-07-2007
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Sometimes in light wind on a long run I unshackle my boomvang from the mast and clip it to the base of a forward station. But normally, I just grab the 'lazy jib sheet" and lash the boom to something convenient.
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post #5 of 5 Old 08-10-2007
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I have used a pair of purchases at the mid-boom, going forward to padeyes at the rail, and with the tails going aft to cam cleats. I have been able to steer through a gybe with my knees on the tiller and by using both tails at once, can obtain a very controlled movement of the boom from one tack to the other.

Basically, I only reset the mainsheet itself when I have completed the tack and secured the appropriate preventer. Some lead the preventer to the bow. I have not found this necessary, probably because the boat in question has a tall, skinny IOR main.

I have used this techniques in 30 knot downwind runs.

Here's a not particularly good picture, but it was a windy, rolly day in October on Lake Ontario. So was yesterday, as well, come to think of it.

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