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zerohp
on Sept 23, 2013
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The life and death of Buran, the USSR shuttle buil...
SSMEs were commonly reused. Only 46 were built and 3 were used for each of the 135 missions. I wouldn't say that 9 missions per engine is rare.
jlgreco
on Sept 23, 2013
[–]
Mean SSME resuse was 8.8 flights per engine, median is 8.
http://upload.wikimedia.org/wikipedia/commons/2/25/SSME_Flig...
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