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A.: OK,
here's where things got interesting. I actually ruled this one
as a tie rather than an incorrect answer. The person who asked
this question works at NASA, so I would hope he would have known
the answer (he obviously did). The following is my answer and
his reply.
OK, according to NASA (and
apparently you work there) the rockets fire for about 10
minutes. This is a quote from a NASA Web site (http://science.ksc.nasa.gov/shuttle/technology/sts-newsref/sts_overview.html):
"The Space Shuttle is
launched in an upright position, with thrust provided by the
three Space Shuttle engines and the two SRB. After about 2
minutes, the two boosters are spent and are separated from the
external tank. They fall into the ocean at predetermined points
and are recovered for reuse. The Space Shuttle main engines
continue firing for about 8 minutes. They shut down just before
the craft is inserted into orbit."
So taking the 2 minutes that
the SRBs and SSMEs are firing, plus the 8 minutes that the SSMEs
fire by themselves, I've got the 10 minute answer. I'm about to
put a call into Kennedy Space Center's Public Affairs office. Do
I need to verify my answer?
Thomas's reply:
Close... very close...
Check out this site:
http://science.ksc.nasa.gov/shuttle/technology/sts-newsref/mission_profile.html#mission_profile
It's part of the same page
that you referenced earlier, but the MISSION PROFILE section
isn't as misleading as the SPACE SHUTTLE REQUIREMENTS section.
There is a discrepancy on the page in the use of the word
"continues". They actually fire for only about 8
minutes (520 seconds).
So now you see why I've ruled this one a
tie. I did give the right information and even offered to call
NASA to verify it. It was the NASA Web site that provided
misleading information. However, I can't claim total victory
because, as Thomas points out, the answer was actually 8
minutes.
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