Guess that math is going to have to take into consideration the poles composition. If wooden poles one could start with say 20 footers and move the lashing down till you found the minimum sweet spot. Might be a cheap way to do a rough calculation on other materials too. Just thinking out loud ... sort of
WARNING: Will discuss Rhurbarb Strawberry Pie and Livermush at random.
"A democracy is two wolves and a small lamb voting on what to have for dinner.
Freedom under a constitutional republic is a well armed lamb contesting the vote." ... B.Franklin
Home of the Gorge Rats: Linville Gorge
My Videos YouTube Channel
Photo collections Flickr Photostream
Gorge Rat Productions On FaceBook