boom preventer

[feelingkarma]

Any hints tips diagrams or pictures please on how to rig a boom preventer . Had one unwanted gybe at night and I do not need another. Yacht is 35 ' ....many thanks . If anyone in Plymouth has one rigged , I would be very happy to come and take a look.

 

[lw395]

Take a line from the boom near the clew (mainsheet fitting?), outside shrouds etc, to a bow cleat, or lead it back to the cockpit, to a cleat. Depending on conditons it may need to be quite strong, eg if boom hits water. Boom brakes etc are ok in light weather, useful in sloppy seas/shifty wind.

 

[bromleybysea]

I have a nylon rope shackled to the mainsheet fitting at the clew of the mainsail, which then terminates with a carbine type hook near the gooseneck fitting and is held in tension with a loop of shockcord. The advantage is that the boom can be squared-off on a run, the carbine hook is still inboard and a line can be rigged from the bow, outside everything, and clipped on. I use a block on the stemhead to bring said line aft to the cockpit for easy adjustment.

 

[ebbtide]

[ QUOTE ]
Take a line from the boom near the clew (mainsheet fitting?), outside shrouds etc, to a bow cleat, or lead it back to the cockpit.

[/ QUOTE ]

If you fasten this line to the clew with a 'long' bowline, say halfway along the boom, it makes it easy to reach and safer to undo.

 

[SAWDOC]

Rather than take a preventer to a bow cleat, we run the preventer through a temporary block which can be attached by a line to the same bow cleat if you have a centrally located one and thereafter we bring the line aft to the cockpit. This allows us to control the line and release the line from the cockpit - which i submit is a much safer arrangement - you most likely will want to gybe at some stage.

 

[billcowan]

You MUST be able to dump it from the cockpit!!!

1) bring boom in, tie a long bowline to clew/mainsheet fitting/end of boom. dont use too thick a rope, a spinnaker sheet is ideal

2) through a snatch block with carabine fitting to one of the D rings that a shroud goes onto.

3) back to winch/cleat (headsail usually goose winged so jib sheet is on tuther side)

All this can be done single handed.

 

[lw395]

Of course the best prevention is a windex, illuminated at night, deal with the problem at source!

 

[davies]

Best prevention of all is windvane steering! However, the hefty nylon warp round a block on the foredeck and back to a cockpit winch is a proper preventer. Crank it up reasonably tight then tighten the mainsheet against it.