Re: [ATM] Tri-Dob Article

[Mark Cowan <toolontop@yahoo.com>]

Yes, kudos on an excellent article, Mel! 

The last few days I've been sketching out the design
for a tri-enabled ultralight 12.5" f/6 and while
thinking "I've gotta go look up some pictures of Mel's
design" went down to the mailbox and there they were.
<g>

Then I skipped to the end and in the penultimate
paragraph Mel muses on using different curves on the
two working altitude arcs to raise and lower the CG at
different angles - SHAZZAM!  

I was planning to put the "keel" in the front where
it'll be more like a fin or tooth - so that the mirror
box can hunker down in the center of a flex-rocker -
and here's a way to both gain better balance (moving
the effective CG forward due to the restoring force
while retaining clearance) AND raise the eyepiece at
low altitude - very cool.

About to build some models to see how/if it works.

And I like Mel's demonstration of the triangular
stability in his stance in the first picture.  <g>

Cheers,
Mark Cowan
Salem, OR


--- "Richard F.L.R. Snashall" <rflrs@rcn.com> wrote:
> I hope this isn't too OT, but congratulations to Mel
> Bartels
> on his Tri-Dob article in S&T.  I can finally put a
> face to
> the name, now, too!
> 
> -- 
> 
> Rick S.
> 
> http://users.rcn.com/rflrs
> 
> 
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 



		
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