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#4353503 - 04/25/17 09:49 PM What is That Mist Sometimes Seen in Fighter Cockpits  
Joined: Nov 1999
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Talon Offline
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Talon  Offline
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Tampa, FL USA
Hey All,

Sometimes when watching cockpit videos of fighter aircraft I see the cockpit being filled with a sort of mist. See the following video @ 1:18 for an example: https://www.youtube.com/watch?v=VseTWC_jSE0 I suspect it is either air for the purpose of defogging the cockpit glass, air for climate control, or an effect of the cockpit being pressurized. I believe I've seen it on occasion on commercial airlines. Anyway, what exactly is it?

Please advise... Thanks...
--T

Last edited by Talon; 04/25/17 09:52 PM.

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#4353537 - 04/26/17 01:26 AM Re: What is That Mist Sometimes Seen in Fighter Cockpits [Re: Talon]  
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Wizard43 Offline
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Wizard43  Offline
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That is cold air from the air conditioner hitting the warm air in the cockpit. I had the pleasure of a ride in the back seat of a T-33 on a hot sunny day and our cockpit did the same thing.

Wizard

#4353591 - 04/26/17 11:28 AM Re: What is That Mist Sometimes Seen in Fighter Cockpits [Re: Talon]  
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Deacon211 Offline
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Deacon211  Offline
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Louisville, KY
Wizard has it exactly right. The air that comes out of the Environmental Control System (ECS) is reasonably cold and dry. Particularly in humid conditions, the cold, dry air hits the warm, moist ambient air and mist forms.

Depending on how well the system works, the nozzles will even throw water at you or occasionally ice.

#4354005 - 04/27/17 08:13 PM Re: What is That Mist Sometimes Seen in Fighter Cockpits [Re: Talon]  
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Talon Offline
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Talon  Offline
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Thanks guys. Ice... how interesting. :-)

--T


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#4383036 - 10/04/17 09:22 AM Re: What is That Mist Sometimes Seen in Fighter Cockpits [Re: Talon]  
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Yassy Offline
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Yassy  Offline
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Low Countries
The vents in our 737 cockpit spit ice particles on our heads on a regular basis as well. smile
I haven't seen mist forming, if it did then I suspect many collegues would scream 'Rapid Depressurization!' and proceed to put on their Oxygen Masks and establish an emergency descent! biggrin biggrin

But seriously, the space is probably too big to be able to create the humid conditions one or two warm bodies pilots in a confined space like a fighter cockpit will.


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