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## [TowerTalk] Ginpole for 20 foot sections

 To: [TowerTalk] Ginpole for 20 foot sections Michael Tope"
 ```Hi all, The gin pole feels a downward force equal to twice the attached load. Thus the person pulling the rope has a 2:1 advantage in terms of his or her ability to push the tower down into the ground. His ability to lift the attached load however is 1:1. Mike, W4EF......... ----- Original Message ----- From: To: Sent: Wednesday, June 13, 2001 11:45 AM Subject: Re: [TowerTalk] Ginpole for 20 foot sections > More N4KG observations and comments inserted below. > > On Wed, 13 Jun 2001 12:18:30 -0400 "Guy Olinger, K2AV" > writes: > > The reduction mechanism of a ganged pulley system is in the number of > > feet of rope the worker pulls in as a ratio to the distance the load > > travels. In a two to one system the worker pulls 200 feet of rope to > > lift the object 100 feet, thus the analog to a lever, and the > > advantage. > > The distance traveled is a RESULT of the mechanical > advantage, NOT the CAUSE, but can be used to calculate > the mechanical advantage. N4KG > > > Two to one: rope tied at top block, through pulley at bottom block, > > through pulley at top block, to worker. > > > > Three to one: rope tied at bottom block, through pulley at top > > block, through pulley at bottom block, through pulley at top block, > > to worker. > > > > Four to one: rope tied at top block, through pulley at bottom block, > > through pulley at top block, through pulley at bottom block, through > > pulley at top block, to worker. > > > > 73 > > Note the presense of MULTIPLE pulleys at the top > of the block and tackle. A GIN pole has only ONE > pulley at the top. The only way to get a mechanical > advantage is to use a SEPARATE block and tackle > with a SECOND ROPE. As I said before, this helps > the puller but does nothing to reduce the load on the > GIN Pole. de Tom N4KG > > > > > > > > > From: Mike Gilmer - N2MG To: > > > Date: 2001/06/13 Wed AM 09:06:35 EDT > > > To: towertalk@contesting.com > > > Subject: Re: [TowerTalk] Ginpole for 20 foot sections > > > > > > Nothing "magical" about it... > > > > > > ________________________________________________________________ > GET INTERNET ACCESS FROM JUNO! > Juno offers FREE or PREMIUM Internet access for less! > Join Juno today! For your FREE software, visit: > http://dl.www.juno.com/get/tagj. > > List Sponsor: Are you thinking about installing a tower this summer? Call us > for information on our fabulous Trylon Titan self-supporting towers - up to > 96-feet for less than \$2000! at 888-833-3104 HREF="http://www.ChampionRadio.com";> > www.ChampionRadio.com > > ----- > FAQ on WWW: http://www.contesting.com/FAQ/towertalk > Submissions: towertalk@contesting.com > Administrative requests: towertalk-REQUEST@contesting.com > Problems: owner-towertalk@contesting.com > List Sponsor: Are you thinking about installing a tower this summer? Call us for information on our fabulous Trylon Titan self-supporting towers - up to 96-feet for less than \$2000! at 888-833-3104 www.ChampionRadio.com ----- FAQ on WWW: http://www.contesting.com/FAQ/towertalk Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: owner-towertalk@contesting.com ```
 Current Thread [TowerTalk] Ginpole for 20 foot sections, (continued) [TowerTalk] Ginpole for 20 foot sections, David Robbins [TowerTalk] Ginpole for 20 foot sections, Mel Farrer [TowerTalk] Ginpole for 20 foot sections, Mike Gilmer - N2MG [TowerTalk] Ginpole for 20 foot sections, Guy Olinger, K2AV [TowerTalk] Ginpole for 20 foot sections, n4kg@juno.com [TowerTalk] Ginpole for 20 foot sections, Stan or Patricia Griffiths [TowerTalk] Ginpole for 20 foot sections, Mike Gilmer - N2MG [TowerTalk] Ginpole for 20 foot sections, n4kg@juno.com [TowerTalk] Ginpole for 20 foot sections, David Robbins [TowerTalk] Ginpole for 20 foot sections, Paul Finch [TowerTalk] Ginpole for 20 foot sections,