Turns out using less engine bleed air is good for fuel economy, so now it's 50% ... | Hacker News

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05 42 days ago | parent | context | favorite | on: What the Hell Was Going on with Cigarette Ads in t...

Turns out using less engine bleed air is good for fuel economy, so now it's 50% recirculated HEPA filtered (which does nothing for the co2 contents) air.

xattt 42 days ago [–]

How does this work for all-electric planes like the 787?

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