Hello Listers,

Does anybody know the forestay length of a 30 MK I as it came from the factory, 
with the rig properly tuned for 8” of mast rake?

By geometry (square root of I squared plus J squared) I’d expect it to be in 
the neighborhood of 41’3”.  I is 39’ for a 30 MK I, and J is 13.5’.

According to the owner’s manual the forestay cable is 1/4” and the lower 
fitting is <quote>1/2” jaw to jaw turnbuckle & toggle</quote>.  On mine, the 
cable is swaged into an eye fitting on the lower end, which is pinned to a 
turnbuckle screw that’s probably 1/2” jaw to jaw (if that’s what’s meant by the 
owner’s manual).  The screw at the other end of the turnbuckle is identical, 
and is pinned to a toggle that’s pinned to the bow stem.  Picture at 
https://drive.google.com/file/d/1ZT794BQaw0R8aWZCK9NqmVqRJ9K85VT9/view?usp=sharing.

I’m wondering if this is the standard from-the-factory setup, and what the 
overall forestay length is from pin at masthead to pin at bow stem, when the 
rig is properly tuned.

Thank You,
Randy Stafford
SV Grenadine
C&C 30 MK I #79
Ken Caryl, CO
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