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## [TowerTalk] Elementary question - trig formula

 To: [TowerTalk] Elementary question - trig formula n4kg@juno.com (T A RUSSELL) Thu, 25 Jun 1998 19:32:29 -0600
 ```There is an even easier way that requires NO MATH ! Just make a scaled drawing, say 1 inch = 10 ft. Then you can measure your guy wire lengths and/or turning radius at any point on the tower. See, I told you it was simple. de Tom N4KG ............................ On Thu, 25 Jun 1998 15:12:36 -0400 Pete Smith writes: > >At the risk of getting into the dumb question territory: > >If you know how far from the base of your tower your guys attach (on >flat >ground), and you know how high they attach to the tower, then you >should be >able readily to calculate how much turning radius inside the guys >would >exist at any given height on the tower. Obviously, this would be >useful >for assessing a potential stack design. > I > /I > / I > / I C > / I > /----I > / ? I > / I D > / I > -----/----B---I--------- > >That is, if you know the lengths of B and C+D, then you ought to be >able to >figure out what "?" is for any length of C. > >Unfortunately, I've forgotten virtually all the plane geometry and >trig >formulas I ever learned, and I didn't keep any high school math books. > I >think the two triangles involved are called "similar triangles," but >that's >as far as my memory goes. Can anyone tell me offhand what the right >formula is for this? Once I have the fomula I can do the >calculations, but >what to calculate? > >Thanks! > > > > >73, Pete Smith N4ZR >In wild, wonderful, fairly rare WEST Virginia > >-- >FAQ on WWW: http://www.contesting.com/towertalkfaq.html >Submissions: towertalk@contesting.com >Administrative requests: towertalk-REQUEST@contesting.com >Problems: owner-towertalk@contesting.com >Search: http://www.contesting.com/km9p/search.htm > > _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866] -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: owner-towertalk@contesting.com Search: http://www.contesting.com/km9p/search.htm ```
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