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Message: [QUOTE="BillSU, post: 3287551, member: 6809"] @NJCuse97 - I missed both structures and physics class and was wondering if you could paraphrase your statement and clear up something here since I am not a structural engineer. I believe I understand some of your explanation but -What is a chord? What is a high moment force? (How much vertical force is the giant exerting on the backstay?;) ) What are you saying in the simplest terms so I may understand exactly what you are telling us. Sometimes the Crown Truss to me looks so high and heavy that it seems it will exert so much force that the walls cannot bear that force and they will collapse outwards or that the inward angle of the Truss is so much that it may collapse inward. Really, how does the Crown Truss stay at such an angle and also handle the tension of the new roofs cables? Math right? Is it because the entire structure including the cable is under so much tension /compressive force that it stays in place?:) [/QUOTE]