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Surely the countries which were a part of the Soviet Union were not so hot then why are there fans in their cockpits? e.g. TU-134

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or IL-76

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or AN-124

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    $\begingroup$ It keeps the Russian pilots from sticking their heads out the window to feel the breeze. $\endgroup$ – Ron Beyer Dec 15 '20 at 19:31
  • $\begingroup$ Because air conditioning was too expensive. $\endgroup$ – A. I. Breveleri Dec 15 '20 at 20:51
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    $\begingroup$ @A.I.Breveleri, I don't think you can have a pressurization system without ability to control temperature, or that it would be any cheaper, so for pressurized aircraft—and all the pictured ones are—the air conditioning is ‘free’, because it is already included in the pressurization system. $\endgroup$ – Jan Hudec Dec 15 '20 at 21:53