I took it apart and found interesting things.. Maybe this photo
helps someone remind something similar?
It seems that the speader bases are attached to the mast via 3 rivets and then there's long half threaded bar running through the mast and bolts in both ends to compress the spreader bases against the mast and each other... It seems the rigging
was incorrectly installed as the spreader bases have taken significant load instead of being just compressed. That is if my understanding is correct that the spreader bases should only get compressing loads and nothing else. (from thread sagging spreader, is that a symptom of something sinister
I really hope the (big) bend in the metal bar is caused by stress and not designed.. Otherwise that's PITA to replace.
When building replacement parts
, any ideas on how to calculate the angle that the spreaders should be in?