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Old November 12th 15, 08:09 AM posted to rec.bicycles.misc
The Real Bev[_2_]
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Posts: 40
Default Thunked my helmet a fourth time

On 09/22/2015 08:05 PM, John B. wrote:
On Tue, 22 Sep 2015 13:00:59 -0700, The Real Bev
wrote:

On 09/20/2015 04:04 PM, wrote:

I could go into great detail about helmets since I started learning
about them as the Safety Director of the American Federation of
Motorcyclists about the time Bell started and I had some long
discussions with people at Bell. I am also an engineer and a
scientist. I wrote one of the few peer reviewed papers on bicycle
helmets.


Long ago I had/read a USAF publication about helmet design which had a
lot of useful/interesting information. I recently did a google etc.
search for it and turned up nothing. Did you ever read that?


Out of curiosity, what was the U.S.A.F. publication about? The usual
pilot's, or air crew member's, helmet is more a matter of holding all
the things needed in proximity to the head and protection from wind
forces when ejecting, rather than falling off :-)


It dealt with structure of the helmet, how different parts of the head
needed to be protected, appropriate weight, etc. I think there were
equations. It was written during the 40s or early 50s when things were
different. A thing I remember especially is that hair alone provides
significant protection from abrasion.

--
Cheers, Bev
++++++++++++++++++++++++++++++++++++++++++++++
666øF -- the oven temperature for roast beast.
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