Reply To: Masthead Configuration
Hi, it looks like the top of a second generation Boyce mast before the Needlespar lookalike came along.
I think you will have to use a masthead sheave set of a more conventional mast from Proctor or somebody and make it fit. It seems like you already have an internal halyard arrangement so this could work with a thinner bit of rope.
Before I went too far, I would have look at where the halyard comes out at the bottom, where any cleats are fastened on and where the top bearing is fixed. These are all places for corrosion to start and cracks to develop around the mast causing it to break. All places where holes have been drilled in the side or front of the mast are suspect. If you find any sign of cracking (especially when the mast is loaded up in the boat by putting the halyard to the end of the boom and pulling on the mainsheet) then you may be wasting your time looking for a top fitting.
If this is the case then we shall have to try to find you a Needlespar to use.