
Signature
William Richardson ENC USNR Ret.
TRA 8703 L2
Do not laugh at the difficulties of others
as you may soon have difficulties of your
own.
>> Found on the Arocketry.net site. Robert Compton was the president of
>> the Sacramento L5 Society.
[quoted text clipped - 21 lines]
> I love the REAL ROCKET SCIENCE that is being undertaken in this photo!
> Just wish it were done is a safer manner.
> Check out the testing done by Armadillo Aerospace on the effects of Hydrogen
> Peroxide.
[quoted text clipped - 8 lines]
> as you may soon have difficulties of your
> own.
Fantastic video Bill ... thank you.
The more I study what is going on in the L^5 pics and vids ... the more
I am SCARED!
Ok first off, why are they firing motors with the exhaust pointing down
... what if the steaks they have driven into the ground give way and
the motor and test stand take flight?
2nd should the motor detonate, is it did in the pics from another test,
what is to stop parts from flying about? Shouldn't they have sandbags
surrounding the test area and have the test area semi-sunken into the
earth for greater protection? They should have layed the motor down
horizontal and had it pushing against a load cell rated for their
expected thrust profile.
I watched one video of their motor test where the videographer was
hiding behind a car door ... OMG! Lets see, motor explodes, I am
behind a car door, motor part hits door, shatters glass ... now I have
hundreds of parts flying in my face ...
The yellow rain suit has been discussed ...
Ok I am not trying to 'knit pick', but these experiments had DEATH
writen all over them from the beginning.
The article says he was trying to distill H2O2 in his garage ... WTF
was he thinking? Or maybe NOT thinking!
I think that instead of just letting this blow away, the hobby
(Amateur) should investigate this and present a report so that other
people don't do these sorts of things in their garages ...
... I mean if I had known he was doing this stuff, I would have told
him to stop and get a safety checklist made, and proper equipment.
When I used to work with military aircraft, we would sometimes service
the O2 systems on vehicles. They would wheel out a big chiller, and a
guy would suit up from head to tow in THICK nomex and other fabrics,
thick gloves, and full head/face visor, ground himself and the O2
chiller ... and even then the job was dangerous ...
David Bacque - 22 Apr 2006 13:20 GMT
> The article says he was trying to distill H2O2 in his garage ... WTF
> was he thinking? Or maybe NOT thinking!
A year or two ago in Houston, a NASA engineer who was designing an amateur
H2O2 motor was fueling the motor in his backyard for a test (!!!) when it
exploded. It killed him and damaged 3 homes.
Dave
Chuck Rudy - 22 Apr 2006 18:41 GMT
>>The article says he was trying to distill H2O2 in his garage ... WTF
>>was he thinking? Or maybe NOT thinking!
[quoted text clipped - 4 lines]
>
> Dave
The video was interesting. I recall back int he 70's before he was
basically banned from US race tracks, Slammin' Sammy Miller's H2O2
Vanishing Point rocket car was doing 300 mph in an eight mile......He
went on to England
http://www.draglist.com/stories/SOD%20Mar%202002/SOD-030702.htm
where he played with his rocket motor for quite some time before IIRC he
was killed trying to fight an oil well fire. I noted the fueling
requirements........quite a distance, but thinking back, if he had gone
out of control it could have be a catastrophe in those old pseudo safety
days of racing.
Chuck
Robert Juliano - 22 Apr 2006 19:50 GMT
>>> The article says he was trying to distill H2O2 in his garage ... WTF
>>> was he thinking? Or maybe NOT thinking!
[quoted text clipped - 18 lines]
>
> Chuck
I thought that cotton was verboten, when it came to H2O2. I thought that
coth products caught fire.
Bob
Joe Pfeiffer - 24 Apr 2006 05:58 GMT
> I watched one video of their motor test where the videographer was
> hiding behind a car door ... OMG! Lets see, motor explodes, I am
> behind a car door, motor part hits door, shatters glass ... now I have
> hundreds of parts flying in my face ...
That's actually the one scenario in which hiding behind the car door
is OK: automotive safety glass can't shatter dangerously. Shrapnel
punching through a couple of layers of very thin sheet metal is the
bigger problem -- a car door is quite thick, giving a sense of
security. Unfortunately, almost all of that thickness is air, so it
doesn't do a whole lot of good.

Signature
Joseph J. Pfeiffer, Jr., Ph.D. Phone -- (505) 646-1605
Department of Computer Science FAX -- (505) 646-1002
New Mexico State University http://www.cs.nmsu.edu/~pfeiffer
lunarlosREMOVE2EMAIL@juno.com - 24 Apr 2006 18:17 GMT
> > I watched one video of their motor test where the videographer was
> > hiding behind a car door ... OMG! Lets see, motor explodes, I am
[quoted text clipped - 11 lines]
> Department of Computer Science FAX -- (505) 646-1002
> New Mexico State University http://www.cs.nmsu.edu/~pfeiffer
Thanks. So then all thoe OLD photos of rocket tests back in the 1930s
are the way to go? i.e. sandbags surrounding the engine and test
stands ... and even then there is NO guarantee of complete safety!
Werner von Braun almost lost his life early in his rocketery
experiments ... he had a fellow rocketeer die in his arms when rocket
shrapnel hit his friend in the neck and severed his artery ... even the
professionals die from time to time ... tought call. On one
had, we love to see people get involved ... on the other hand, we hate
to see them die needlessly ... I guess in the end, the happy medium is
MODEL ROCKETRY.