Recently we replaced the upper shrouds on a Catana 582 with Dynex Dux. Initially we used dead eyes to tension the stays but found that we could not get enough tension to properly tune the headstays. We then went with a dead eye/turnbuckle arrangement with a fine and coarse tune ability. Needless to say we can now get massive tension on the uppers.
This rig is a tough case because it has no diamonds and no spreaders. It is a carbon fiber spar supported by uppers and lowers with a solent and forestay. Even with the turnbuckles on the caps, we are still unable to get adequate tension on the forestays. Being a big cat the headstays are way farther forward than the uppers are aft so the amount of relative tension is skewed. General consensus so far is that the boat needs running backstays. Picture is a good side view to show the difference in shroud angles....
Thanks in advance for any thoughts.
Mike, Southbound Cruising Services LLC
