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Someone popped this link up over on the Oz site in a thread regarding the hydrogen setups.
http://ntrs.nasa.gov/archive/nasa/ca...1977016170.pdf
Not had a look at it yet, so not sure how relevant it is.
http://ntrs.nasa.gov/archive/nasa/ca...1977016170.pdf
Not had a look at it yet, so not sure how relevant it is.