Hexagonal Shaft

[Ron Nossaman]

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Oh uh, I screwed up. Looked at the wrong thing when I was copying figures 
into the spreadsheet. A hexagon cross section point down has the same "I" 
as if it is flat down, though the section modulus is different. The one I 
had listed as hex edge, was actually the octagon. Whatever that means, 
exactly.

>circle
>D       0.25
>I       0.0001914
>Area    0.0490875
>Area/I  256.45714
>I/Area  0.0038993
>
>Octagon
>D       0.2429
>I       0.0001915
>Area    0.0488523
>Area/I  255.16001
>I/Area  0.0039191
>
>hex, edge or flat
>D       0.2377
>I       0.0001915
>Area    0.0467831
>Area/I  244.24221
>I/Area  0.0040943
>
>square
>D       0.2189
>I       0.0001913
>Area    0.0479172
>Area/I  250.43194
>I/Area  0.0039931

Ron N

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