Hi, I am redoing the running (and standing) rigging on this boat. The masthead sheaves are original and setup for wire running rigging. I’ve read that the halyards need to be minimum 1/2” diameter. Unfortunately, this means there is not enough room in the sheave box for three new sheaves to fit. The original sheaves are 1/2” wide and new sheaves, for 1/2” line would need to be 5/8” wide, and there is not enough room for three of these in the sheave box. For all three sheaves to fit, the line has to be 3/8” diameter. Has anybody dealt with something similar? Could I do 3/8” for the halyards? Should do away with the sheaves and somehow install external blocks? Thanks in advance for your input.
Edited: I see I can do 7/16” so I’m going to do some math and see if I can fit the three sheaves since one sheave can be smaller for the reacher halyard.