Main Boom Preventer

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by Cheri + Tom Ward 26 December 2015 Rigging 8 photos 2318 views

When sailing downwind we needed a way to prevent an accidental jibe. I had seen and read about boom failures from attaching the preventer midway so I decided to work on a plan for running ours from the aft end.

Our original preventer was a temporary rig and only brought out when we needed it. This worked fine for sailing on the…

The biggest problem with the original design was that the preventer attached midway out on the boom. With the sail…

Our new system is in two parts, A+B, when not in use. Section A is mounted on the boom and section B is mounted on the…

When in use the two sections are joined by a shackle and then controlled from the cockpit. Hand tight is all that's…

Section A is mounted to an eye nut at the end of the boom.

The eye nuts are mounted on all thread extending through both sides of the boom with 1/4" plates and nuts inside and…

To take up any severe shock we use anchor snubbers on section A.

We made 1/4" aluminum backing plates for the pad eyes holding the forward turning blocks and the line clutches mounted…

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