[TowerTalk] Anyone Using a Fulton KW3000 Winch with Powerful 1/2 inch Pistol Drill for tower tilting ?

[Al Williams]

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----- Original Message ----- 
From: "Kevin Normoyle" <knormoyle at surfnetusa.com>
> it's pretty easy to compute the pulling force the winch sees at the
> drum...(statics/moments..translate uniform loads (the tower) to
> equivalently placed point loads, and work out the forces from the angles)
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Why then are examples of how to compute never included in discussions of 
this type (including youres)? I have asked how several times but never an 
explanation. From my old courses in physics I may be able to handle the trig 
of the pulley cable angle and the offset from center location of the pulling 
connection but what about:

For the offset being close to the tower base, part of the pulling force is 
trying to pull the tower out of the ground--or is it, because the uneven 
weight of the tower is also trying to pull the tower out of the ground? How 
does one take these into account?

The force being used just to turn the pulleys, especially whem the pulling 
force is at an angle?

The unever distribution of tower and antenna weight?  Does one divide the 
tower into a bunch of weight/offset lengths, sum them and take the average 
or what?

k7puc