At 03:12 PM 6/25/98 -0400, you wrote:
>
Pete- it doesn't take trig- it's a matter of simple proportions
B/(C+D)=?/C-- simpler- the ratio of the base spread to the total height is
the same as the ratio of the spread at any height to the distance down from
the top.
Bill
>
>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
>
Bill Aycock --- Persimmon Hill
Woodville, Alabama, US 35776
(in the N.E. corner of the State)
W4BSG -- Grid EM64vr
baycock@HiWAAY.net
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