About a decade ago I acquired a little broadcast tower and am now wanting to put it up. There are eight sections, 20 foot long each, about 18 inches on a side, solid rod legs about 1.5 inches in diam
Hi Stan: I think its called a crane :-). I've helped put up several 25g and 45g towers in my ham career. The 45g sections usually required 2 if not 3 people to pull the section up safely. I'm sure so
Hi all: snip section up snip I've used a pickup truck backing away from the tower (so the driver can see the section going up, HT in hand) (using a diverter pulley if necessary) with the load line ti
<< Gin poles are big things that you rent. >> Where would you rent one? They are pretty expensive pieces of equipment for one time use. Thanks in advance, Don - K4BEV List Sponsor: Are you thinking a
Another thought. A gin pole hefty enough to handle that kind of load on a 20 foot section would itself be quite unwieldy to raise after each new section is put in place. Frank W2FCA List Sponsor: Are
Author: VE6JY Don Moman" <ve6jy@freenet.edmonton.ab.ca (VE6JY Don Moman)
Date: Mon, 11 Jun 2001 16:08:46 +0100
A gin pole to handle this would be, by itself, quite a heavy and cumbersome item. Often a smaller gin pole is used to erect the main pole - which in many cases is a small tower itself. A lot of work
As you can guess, because you've handled the sections (too many times probably :-)), this stuff will require a good stout gin pole. 50' of Rohn 45 makes a nice gin pole for handling 20' sections of t
20 section We have a ginpole that is about 30 feet long and is about 4" in diameter. We lift into place with a Rohn 25 ginpole. Seems funny using a ginpole to lift a ginpole in to place. We raised a
Hi all: Don't forget you `pick' a section a couple of inches from the center in such a way that it is balanced with the end YOU want down on the heavy end. This keeps you from having to fight the sec
Not neccessarily. The big 1000'+ broadcast towers are installed using 50' or 60' gin poles made out of tower (appropiately sized of course). They do not slide in a bracket, but simply get lashed up a
Author: w7ni@easystreet.com (Stan or Patricia Griffiths)
Date: Mon, 11 Jun 2001 16:56:18 -0700
You can always use an ordinary gin pole to set the big gin pole in place. Stan w7ni@easystreet.com List Sponsor: Are you thinking about installing a tower this summer? Call us for information on our
Author: w7ni@easystreet.com (Stan or Patricia Griffiths)
Date: Tue, 12 Jun 2001 23:29:50 -0700
I agree that if you just need more beef on the pull rope, you can get more bodies to do it. But, I was addressing the issue of too much load on the gin pole and more bodies pulling on the rope doesn'
of You sure? Isn't a hundred-pound load going to weigh 100 pounds no matter how the block and tackle are set up? The load effort on the end of the rope will be reduced but the dead weight of the load
of course the lifting rope load remains the same, but the force required on the pulling end decreases so the total load on the gin pole does get reduced. for example, with a standard gin pole lifting
Dave, I'm not buying that. It sounds logical at first but think about it. To pull 300 lbs up, it takes 300 lbs of pull, and since the upper pulley arrangement is actually going to be located on the g
Dave, I'm not buying that. It sounds logical at first but think about it. To pull 300 lbs up, it takes 300 lbs of pull, and since the upper pulley arrangement is actually going to be located on the g
Steve, you are "half" right. The lift effort is part of the overall load on the ginpole (everyone forgets this), so without any mechanical advantage there is 2X load weight applied to the ginpole. If
True, go ask any sailboat mast builder. Steve, you are "half" right. The lift effort is part of the overall load on the ginpole (everyone forgets this), so without any mechanical advantage there is 2
This is a hash of my high school physics teacher's illustration on pulley mechanics. Stuck with me ever since. Something about a picture worth a 1000 words. Lightweight Larry weighs 100 pounds. Norma
The pulley at the top of a gin pole merely changes the direction of the rope. Please explain how a block and tackle "Magically" reduces the force on the rope to the top pulley and how to install the