Originally Posted by captstu
The Gub'Easy on the Shearwater, a '93 Gemini 3400, is installed on the very, very end of the boom - so the forces are lower while the distance traveled is greater. I plan on trying some 8mm line tomorrow and see if it performs more satisfactorily.
If you go to a previous topic headed Boombrake: HERE
, you will find a design made in stainless steel using the same criteria as is in the Gybe Easy from Wichard.
I have used the stainless brake with 14,12, 8mm line and even with 6mm braid - Successfully.
Here are a couple of pictures showing different line in different friction positions.
This one rigged with 6mm braid.
The only negative in using a brake on the boom-end on a catamaran is the extraordinary amount of line that is required. Whatever, the advantage of a brake compared to using a preventer from the point of safety and not having to release the preventer and retying it, should be considered for every sail boat's rigging setup.