Yes, I see now that there has to be something caught, but I have no idea what. I'm going to thoroughly look the geometry over and try to reproduce whatever caused this. Three and a half years sailing this boat it has never happened before.The abrupt "bang" you wondered about was you mast rotating under load. It was hung up on something then let go. How do you normally control rotation?
Thanks, I'll check out the geometry. As I said above, this never happened before. The static rig setup was firm, not hyper tight. Yes I do own a trap harness, but never use it on this lake due to the shifty nature of the winds on it. I don't like reverse capsizing and/or tea bagging.Spreader caught on shroud during the tack. More rig tension required. Do you own trapeze harnesses?
When I got the boat four years ago the clevis pin attaching the diamond to the tang would catch the shroud almost every time. I don't know how folks over the years sailed the boat that way or how they didn't tear the diamond tang off. I thought I has solved it permanently with spacers and vinyl tubing. I will be checking everything.shroud wire over the diamond tang.