On examining my 45.7' spruce hollow mast
, from my 1967 Cheoy Lee Offshore
40, I found what one person believes are AM radio
brackets connected to each other with insulation
, which in turn connect the 5/16" backstay wire almost at the top of the mast
My concern here is the strength of these brackets, considering they are connected with 5/16" clevis pins, while the upper clevis pin connected to the mast head
is 1/2" and the turnbuckle pin is 5/8" wide. Are these brackets a weak link and should they be removed while the mast is down?
The backstay is 1 x 19 wire at 5/16". This should give 12500 LBS breaking strength, but I can't find the breaking shear strength of the 5/16" clevis pins holding these brackets to the wire. One person told me too that the 90 degree angle in the brackets should also be a concern. I've included two photos of these brackets and the back-stay below. The back-stay in the 2nd photo
sits on top.
any help much appreciated