Hi guys... upon purchasing my Avance24, the previous owners had rigged it quite badly, and I had to tighten everything up. Reading about tightening and tuning a Fractional Rig, I was careful to make sure the mast was vertical and not bias to one side, both looking up the mast and measured with the main halyard to each side of the deck. All good there. Even without specs on shroud loads, I guestimated and the yacht sails and points very well now.
However... when at anchor or in the marina, with a breeze passing through the rigging the mast oscillates in the middle... not bad but the vibration goes through the whole yacht. I was on a friend's yacht (normal rig) and that did it too... is it common, or is the shroud tension incorrect between the lower and upper shrouds? I have tried to reduce the upper shrouds a little, and it didn't help...
Any advice would be great, as I am quite naive in rig tuning.
However... when at anchor or in the marina, with a breeze passing through the rigging the mast oscillates in the middle... not bad but the vibration goes through the whole yacht. I was on a friend's yacht (normal rig) and that did it too... is it common, or is the shroud tension incorrect between the lower and upper shrouds? I have tried to reduce the upper shrouds a little, and it didn't help...
Any advice would be great, as I am quite naive in rig tuning.