[NLRS] how to calculate weight walking a tower up

[Mary Brown]

I haven't been able to find the right online calculator for this... and 
it has been way to many years since school..


I have  30 foot tower that weight 100 pounds(Universal 23-30 aluminum 
tower), rotors and antennas will add another 100 at 34 feet(elevation 
rotor height+ center of H frame height). How much is it going to weigh 
as we approach 45 degrees on the lift?  After 45 the force is going to 
drop as weight transfers to the legs... Thinking of adding a pulling 
post in the concrete pour and a winch... I think I could get a 12 foot 
piece of steel(4 feet in the concrete, so 8' tall above ground) but need 
to calculate the forces required to size the steel post... and my brain 
is hitting a wall. Physics class was 45 years ago...


Being able to winch this up and down means any failures/maintenance can 
be done with a small crew of 2, one on the winch and one on a guide rope 
in case of any side wind. I figure we will be able to walk it up a 
little ways to take some of the force off the lift... maybe get the 
center of the load at 10' off the ground


Mary

W0AAT


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