You Just Never Know

I recall a rule of thumb, that the human body is able to withstand ~20
Gs.

Only if properly restrained. Six point harness and all.

Jose
--
Math is a game. The object of the game is to figure out the rules.
for Email, make the obvious change in the address.

"Larry Dighera" wrote in message
...
On Thu, 03 Mar 2005 19:01:50 GMT, David CL Francis
wrote in
::

According to my quick sum that is about an 11g average over 30 ft.

I recall a rule of thumb, that the human body is able to withstand ~20
Gs.

But, it has gone much higher:

"By riding the decelerator sled himself, Dr. Stapp demonstrated that a human
can withstand at least 45 G's in the forward position, with adequate
harness. This is the highest known G force voluntarily encountered by a
human. Dr. Stapp believed that the tolerance of humans to G force had not
yet been reached in tests, and is, in fact, much greater than ordinarily
thought possible."

From:

http://www.edwards.af.mil/history/do...biography.html

And, doesn't duration factor in as well? For example, race car drivers have
experienced extremely high g-forces in wrecks but these were measured in
milliseconds.

I did a little Google-ing and saw references to NASCAR Black Box data
suggesting that some wrecks have been as high as 80Gs with Jerry Nadeau's
accident at Richmond a couple of years ago possibly being in the area of
"160Gs"

Mentioned In:

http://www.nascar.com/2003/news/head...eck/index.html

Jay Beckman
PP-ASEL
Chandler, AZ

wrote in message
oups.com...
Last week a close friend and crop duster died as a result of injuries
when he experienced an engine failure after takeoff. He put it down
just fine, tore off the tailwheel and the gear stuck into the mud
causing an extreme short field stop. the gear was bent back under the
tail area, his seat belt and shoulder harness failed and he suffered
major crush injuries to his chest and abdomen. He was able to exit the
aircraft, walked around for a couple of minutes, talked to some of the
crew, said he didn't feel so good, then collapsed and died of internal
bleeding right there.
I helped him get his first ag seat about 10 years ago flying an Ag Cat
with the company I flew for. Then I helped him get his first turbine
seat some 5-6 years later. When I talked to him shortly before he died,
he told me he now had about 6,000 hours of good time logged and life
was good.
Gonna miss him and so will many who knew Big John Shanahan Ceres, CA.
RIP my brother
a saddened Ol Shy & Bashful


I'm very sorry about this. I have unfortunately known what you must be
feeling myself more than once in my career, and I know how this feels.
When it comes to things like this, all of us are brothers.
Dudley

I'm very sorry to hear of your loss.

Hope his example will lead more ag operators to change out the belts
annually or at least bienneally as ultra violet rays weaken them. I've
been reading of ag accidents over the last ten years or so where the
belts failed in what, at first look, seemed to be survivable impacts.
Turned out they were original with the airplane and had never been
replaced.

Also, gotta convince the guys to call the ambulance and go to the
hospital even if it doesn't seem all that bad at the time. We lose too
many ag pilots because they want to maintain an image of being tough
and won't go to the hospital or they don't realize that they are
actually hurt. Shock covers up a heck of a lot of injuries.

It's often the little things on older airplanes that bite us...fraying
wiring, seat belts weakened...

All the best,
Rick

Man; that's tough, Rocky. Sorry for your loss.
--
Dan
C-172RG at BFM

On 2/27/05 11:34 PM, in article
, "
wrote:

Last week a close friend and crop duster died as a result of injuries
when he experienced an engine failure after takeoff. He put it down
just fine, tore off the tailwheel and the gear stuck into the mud
causing an extreme short field stop. the gear was bent back under the
tail area, his seat belt and shoulder harness failed and he suffered
major crush injuries to his chest and abdomen. He was able to exit the
aircraft, walked around for a couple of minutes, talked to some of the
crew, said he didn't feel so good, then collapsed and died of internal
bleeding right there.
I helped him get his first ag seat about 10 years ago flying an Ag Cat
with the company I flew for. Then I helped him get his first turbine
seat some 5-6 years later. When I talked to him shortly before he died,
he told me he now had about 6,000 hours of good time logged and life
was good.
Gonna miss him and so will many who knew Big John Shanahan Ceres, CA.
RIP my brother
a saddened Ol Shy & Bashful

My condolences to you and his family.
--
Jeff 'The Wizard of Draws' Bucchino

Cartoons with a Touch of Magic�
http://www.wizardofdraws.com

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