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Shuttle Liquid Fly-Back Booster to save money, improve safety(flashback)



 
 
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Old July 16th 06, 02:12 AM posted to sci.space.shuttle
Bob Wilson[_1_]
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Default Shuttle Liquid Fly-Back Booster to save money, improve safety(flashback)

Flashback....

Liquid Fly-Back Booster

"The proposers of the upgrade believe that the LFBBs would improve
safety by reducing or eliminating the need for some high-risk abort
modes, save $400 million per year in operations costs (with seven
shuttle flights per year), and increase the shuttle's payload capacity.
The proposers also predict that the LFBB would enable a three-week
turnaround time between missions, and (with three sets of LFBBs) could
allow the shuttle to fly 15 times per year.

Approximately $12 million has been spent by NASA to study the LFBB.
Lockheed Martin and Boeing have also funded studies and produced some
initial competing design concepts. NASA plans to continue studying the
LFBB in preparation for a decision on whether to proceed at the end of
year 2000. (Like the five-segment RSRB, the LFBB will be assessed by
NASA's Independent Program Assessments Office.) If NASA decides to
proceed, the upgrade proposers estimate that hardware fabrication and
testing will take four years and will cost about $4 to $5 billion.

http://newton.nap.edu/html/upgrading/ch4.htm#fig4_2
(scroll up a little)

Also note the plans to remove the hydyrazine powered APUs on the orbiter
and boosters.



 




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