[AR] Re: clusters and reliability (was Re: Re: 3 no 4 no 5 legs.)
- From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
- To: Arocket List <arocket@xxxxxxxxxxxxx>
- Date: Fri, 22 Jan 2016 16:15:47 -0500 (EST)
On Fri, 22 Jan 2016, Nels Anderson wrote:
The Saturn V just closed down the offender and carried on, not even
making any attempt to adjust guidance etc.; the result could get odd,
as witness the rather strange trajectory Apollo 6 ended up following
after a double engine failure (!) on the second stage...
I believe that, because of a wiring error, it was actually a good
second-stage engine that was deliberately shut down on Apollo 6, while
the bad engine went on to fail benignly of its own accord.
As I understand it -- never went digging for the exact details -- the
wiring error resulted in both shutting down in response to the shutdown
command, because only some of the wiring was misconnected, and there were
enough internal interlocks that half a shutdown command :-) sufficed for
each. I can check on this later...
Since the failure was a hot-gas leak, I doubt you'd get a benign failure
out of it.
Henry
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