[TowerTalk] rope strength

K9MA k9ma at sdellington.us
Mon Dec 2 11:54:39 EST 2019


> On 12/1/2019 11:40 PM, Grant Saviers wrote:
>>
>>
>> The second problem is there is a lot of friction in the pulleys. I've 
>> seen tests for hardware store ones where the output tension is only 
>> half of the input tension. 

I can confirm that. When I put up my Rohn 25 last summer, I pulled the 
rope to lift the sections. I can tell you it took a whole lot more than 
40 pounds of tension to lift them. Obviously, the pulley on the Rohn gin 
pole was not one of the good ones.

73,

Scott K9MA

-- 
Scott  K9MA

k9ma at sdellington.us



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