[amsat-bb] Re: Phase 4 versus Eagle
kl7uw at acsalaska.net
Sat Dec 15 10:52:18 PST 2007
And at the risk of repeating myself: The people checking off the
list should have someone checking their work. In other words do not
trust one individual to be failure-proof. In previous work environs
I had at least two other individuals checking over my work to capture
errors and oversights!
With a good checkoff procedure/list, thorough project plan, and
enough folks to double or triple check (esp. critical steps) there
should be a high confidence in things going right. ***in a perfect world***
73 Ed - KL7UW
At 08:15 AM 12/15/2007, Joe wrote:
>I'll agree with this completely.
>While we are NO AMSAT, we here at Near Space Sciences, (one of the
>balloon groups) have in the heat of the launch excitement have just
>plain forgot to turn something "ON"
>Without a formal checklist, where everything must be checked off the
>list before liftoff, or lift off doesn't happen, something is bound to
>be missed. it happens on our simple payloads, i can not even imagine
>the complexity of a real AMSAT type of bird!
>Robert McGwier wrote:
> >Yet again, a statement based on no knowledge of the real situation.
> >MOST space failures are caused by exactly this kind of thing. A wrench
> >left behind and falling and puncturing a tank. Incomplete testing of
> >this or that and a SUPPOSITION that it was "Okay". Satellites not
> >bolted down when everyone assumed it was and a $100,000,000 satellite
> >falls to the floor. These space things are extremely complex and if
> >every system had to be tested to perfection, none could afford them.
> >The goal of a good trained space/spacecraft engineer is to design robust
> >systems that have the really supercritical things testable and the rest,
> >well, the rules for that are in the adjoining testing manual (the local
> >religious book, for prayer).
>Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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Ed - KL7UW
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