Talk:Air cycle machine

Well, this is an interesting piece of unsourced folklore from user:24.99.195.199:
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The original B707 had a non-pneumatic vapor cycle "pack," and so did the Lockheed L-188A. You can look up their 1950's era operating manuals and control panels and can clearly see their non-pneumatic cooling systems referred to as "packs", so I can't see how the supposed acronym above could be true. Komodon (talk) 03:50, 24 June 2010 (UTC)
 * "PACK" (P.A.C.K.) is the acronym for "Pneumatic Air Cycle Kit", which includes the ACM, heat exchangers, water separators, pressure regulating mechanisms, etc.
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