"John Doe" wrote in message ...
Explorer8939 wrote:
Big laugh. There is no US O2 generator on ISS. There is a CO2 scrubber
in the US Lab but that died after a couple of weeks (it hasn't worked
in ages).

CDRA may not be problem fee, but it is still operational. The way I have
heard, they just minimize its use because it has a low MTBF.

Sounds like Elektron, which gets bashed for the same reason. It works, but
seems to break down far more often than anyone would like.

Basically, US ECLSS suffers from the same fate as a lot of other US
space technology, lots of systems engineering, great viewgraphs, but
the damned thing doesn't work.

The last sentence should be "the damned thing hasn't been debugged yet".
Remember that in many cases, ECLSS systems can't be debugged until they
are in
orbit because 0g can't be simulated on ground.

But when you have a system like the US CO2 scrubber not being used because
it breaks down, how can you ever debug and improve the system? It seems
counterintuitive.

Jeff
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