[TowerTalk] Aluminum tubing
Tek Supp
teksaport at hotmail.com
Fri Dec 18 13:10:39 PST 2009
Roger (K8RI), do you have any pictures of your 16" swivel arm? I'm curious if I could make something like that for myself.
> I use 20' of 1 1/2" galvanized steel fence tubing. with a 16" swivel
> arm at the top so it can lower masting or tower sections in line with
> the tower. It lifts 45G sections with no noticeable flexing. OTOH if
> there is some side force it will spring without bending. I've lifted
> well over 150# with it with very little deflection. I use a pulley on
> top, the lifting pulley is floating on the rope, and the end of the rope
> ties off at the end of the offset arm making heavy lifts relatively easy.
Thanks
John
K7ALA
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