Thread: No APU, No Ground Air, No Problem?
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Old 10-20-2021 | 07:59 PM
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From: Engines Turn or People Swim
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Originally Posted by Joachim
What kind of airplane is able to do that legally?
Any airplane that stays below 10K, easy on certain regional routes. IIRC it was ORD to MKE.

There's probably a supplemental procedure to use ram air for ventilation.
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