While lifting the tower, it is extremely vulnerable. Your winch/tractor may jerk the line - that could triple the load in an instant. A guy wire might get snagged or come up short - that could also double the load. Where's the gin pole? You don't show it, so I bet you haven't factored in the loads IT imposes on the same hinge point. There are even more things to consider than that, but those are the biggies, and I think I've made my point already.
You also missed a crucial load consideration for backyard truss towers: when your brother-in-law says "so how solid is that thing" and climbs on to "test it".Steven Fahey
The math concentrating on the base strength is to convince myself that that is so, not to make little of the overall problem.
Thanks again, - Ed.[ Parent ]
