standing rigging diameter?

[county]

Hi Brion,
Thanks for the reply!

Sorry, the shroud load 12,000# was mislabeled as RM.

I am using the graph in The Riggers Apprentice from Skene's Elements of Yacht Design (Foot-Pounds/D.W.L in FT.)

33' L.W.L RM=45,000
beam=11.17’

(RM*1.5)/(1/2*beam)
=(45,000*1.5)/(1/2*11.17’)
=67,500/5.58
=12,097#

Am I doing this calculation correctly?

How do I calculate what % of the load is divided among the shrouds?

How do I find a reliable source to determine load-bearing of 1/19 (the websites I looked at have varying loads)?

What I refer to as "intermediate backs" are shrouds led from the mast hound where the inner forestay connects to the same chainplate as the aft lower shrouds, connecting aft of the lower shrouds. I will refer to them as aft intermediate shrouds. My boat was designed with aft intermediate shrouds. I would like to avoid the added complexity of running backstays. Why do you think runners make more sense for my boat? I believe many cutter-rigged boats have gone below the Great Capes without them.

Thanks for your input. It is really appreciated,
Karl