On 5/25/2014 6:16 PM, Grant Saviers wrote:
Check out http://k7nv.com/notebook/id7.htm for an analysis. btw the
Rohn pole is 0.125" 6061 wall and rated for 45G @70# per section.
Never use a pole as a tram tie off or pull at an angle against the pole.
I don't see anything suggesting that.
I use a 20', 2", 1/4" wall, 6061-T6 Gin Pole with a double mount (2
clamps) to raise 45G sections and well over 100#.
The braided rope (don't use rope with a twist) goes through a pulley at
the base of the tower so the go-fers pull straight out. Use a proper
hook for the pulley. The rope to the gin pole should always pull
straight down.
73
Roger (K8RI)
Grant KZ1W
On 5/24/2014 2:59 PM, Tom Hybiske wrote:
I was wondering if anyone had any opinion on lifting the final
section of 25G, top stub and thrust bearing installed, along with a
30 pound mast nested within the section. My gin pole utilizes a 12’
length of 6061-T6 aluminum, 2” diameter, 3/8 wall thickness. The
combines weight of the the assembly is close to 80 lbs. The gin pole
has been very sturdy during individual section lifts, but I don’t
know if #80 is pushing it.
Tom Hybiske, K3GM
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