"Derek Lyons" wrote in message
...
"Jeff Findley" wrote:
This also eliminates the shedding foam problem.

As does moving the insulation internal to the tank.

Which results in an increased mass for the ET because the aluminum alloy
used (like most metals) gets stronger as you lower the temperature. Also,
you'd better make sure that you don't have internal shedding of insulation,
since your SSME turbopumps surely wouldn't fare well if they started
ingesting chunks of foam.

Jeff
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