Recently there has been discussion on the Rosborough list server regarding the boat's propensity the swing while on the hook. In sailor's terms, this is because the high cabin top starts so far forward on deck creating a center of effort that is on the front half of the boat. Similar to sailing a boat with headsail only, the boat wants to "fall" away from the wind, as in lee helm.
With more than a few years of cruising experience and anchoring, the last 15 while owning three different Corsair trimarans ( www.trimarankimosabi.blogspot.com ), I first attempted to use an anchor bridle on Buddy. The bridle was attached to the anchor rode and run to the midships cleats. This did not help. I also attempted other attachment points forward of the cleats with no real success. One thing I have done that appears to help a little bit is use to use an anchor snubber that is attached to the bow eye on the boat. A side benefit is the scope of the anchor rode is increased because the attachment point on the boat is closer to the water. A 10-12" loop of yacht braid is used to quickly attach the snubber to the anchor line. The second photo is an attempt to show how the loop of yacht braid is attached to the anchor line.Buddy has 50 feet of chain plus 150 feet of braided nylon anchor line.
When we have our full cockpit enclosure up, the center of effort moves back, but not really enough to stop the swing.

