Thread: Breath in those toxic fumes
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Old 02-14-2020, 08:47 PM
  #12  
FlyJSH
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Originally Posted by tomgoodman View Post
The B-707 used a turbocompressor for A/C (the small inlet above the cowl). It was driven by 16th stage bleed air, but provided outside air instead of bleed air to the cabin.

https://images.app.goo.gl/RXxmeprqwmwK2nYz9
Douglass also pulled outside directly into the cabin on the DC-8. That is what the "gills" are for.
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