Boom preventer

[john_morris_uk]

+1 for rigging a permanent line from clew end to a clip at the gooseneck. No way I am going to try and attach a line to the boom end in conditions likely to need a preventer. Also regarding best attachment point, my boom end fitting has the word preventer cast into it so I’m pretty sure that’s what Selden recommend.

I agree completely.

Fortunately, our current boat has the boom end conveniently over the aft deck and very easy to reach, so threading a line through the boom end fitting is as doddle. (Sheet the main in tight to steady it first).

If I wasn't so, I would be fitting a short length of line permanently under the boom with an eye in the end and normally held by a bungee. Rigging the preventer is a matter of putting your preventer line through the eye and making it off (presumably with a long looped bowline) and unhooking the bungee. The remainder of the rigging exercise as normal.

 

[Poignard]

I have a line permanently fixed to the boom's clew end, which is led forward to a point on the boom that I can reach from the companionway at any point of sailing. The line is terminated with a spring hook. When not used it is restrained by a bungee cord undeneath the boom. Prior to sailing I rig preventer lines port and starboard, each line being long enough to stay in place regardless of tack. They are joined with a soft shackle. When running downwind I attach the end of the permanent line from the boom end to the soft shackle conjoining the preventer lines. When gybing, it is then comparitively easy to allow, what becomes the windward preventer line, to hold the boom whilst taking in the slack on the mainsheet, thus controlling the manoevre. Having said that, i usually prefer to tack rather than gybe, but the setup doesn't inhibit that anyway.
Mike

That is the set up I have and it works very well. I don't use soft shackles though, just snap shackles.

 

[Kelpie]

As above, I have a permanent line rigged from the boom end to the gooseneck. I run a longer line around the outside of the shrouds and join that on when needed.
When stowed, the under-boom preventer is a very handy place for my youngest crew member to clip in, as it gives a good range of movement without any possibility of going over the side.

Putting the preventer at the boom end gives the best angle and leverage.

 

[fredrussell]

I use one of these

View attachment 107755
from Dreamgreen.
Boom Brakes

Lovely example of marine pricing strategy- those cost $55, compared to £6 for the non-sailing (climbing) version!