From: "Tom and Beth" 
To: ,
        
Reply-To: "Tom and Beth" 


Tom,

  Hmmm, the view where you are viewing straight down the triangular
(6 point truss) shows almost exactly an experiment in process.

  However, it will use three poles along with the string concepts as shown
here (among others)
http://www.tms-usa.com/grayarea/janes16/jane16.htm

  Picture, if you will, the upper ring has a 14 inch circle with a Hex
stepped
off at 9.5 inch radius. (12.5 inch mirror). The centers of the poles -and
string attach points are 14.25 inches measured along a triangle.

  Going back to your diagram-let the top of the hex be point 1:1 and the
corresponding point at the mirror end be 2:1. One string would run from 2:1
to 1:2 and back to 2:3 (the string would be anchored on the mirror side in
the pole anchors, and on the upper ring between the poles).

  The lower section follows the "Rocker Board" concepts as seen in S&T
Dec 2002, pg 129-130 and also shown on Mel's "ultralight"  from
this years Oregon star party.

  BTW, thanks for the bang up job you are doing documenting the analysis
for your next scope. I've been on your site browsing a couple of times
(HA!) and changed some items due to your analysis!!!!

Tom

Date: Tue, 31 Dec 2002 04:38:49 GMT
   From: tkrajci{at}san.osd.mil
Subject: Truss analysis - compact triangular arrangement

Thanks to some mental prodding from Roy Diffrient, where he reminded me to
look at Jim Miller's design   http://www.jtmiller.com/   I have added some
new analysis of a 'compact' triangular truss to my website at:
http://overton.tamu.edu/aset/krajci/truss-analysis/truss-analysis.htm
SNIPPED>>

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