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Why Russian Ac Have Fans In Their Cockpits?  
User currently offlinetmoney From Myanmar, joined Nov 2011, 42 posts, RR: 0
Posted (1 year 4 months 3 weeks 5 days 15 hours ago) and read 6625 times:

When I google searched it there's a link on Yahoo answers that says because their APU generators aren't strong enough and their aircrafts' airconditioners draw too much power from the engines. Is that why Russian/Soviet aircraft need to have a fan in the cockpit?

Besides those fans don't have covers around their blades! Doesn't that pose a threat to the flight crew?

17 replies: All unread, jump to last
 
User currently offlines5daw From Slovenia, joined May 2011, 241 posts, RR: 0
Reply 1, posted (1 year 4 months 3 weeks 5 days 15 hours ago) and read 6561 times:

I have seen a fan in an Antonov An2, but modern jets, really?

User currently offlineaviatorcraig From United Kingdom, joined Mar 2010, 182 posts, RR: 0
Reply 2, posted (1 year 4 months 3 weeks 5 days 15 hours ago) and read 6484 times:

Yeah, and also why are their cockpit panels always painted turquoise, AND why do all Russian aircraft from fighters to transports have their wheel hubs painted olive drab green? I think we should be told!   


707 727 Caravelle Comet Concorde Dash-7 DC-9 DC-10 One-Eleven Trident Tristar Tu-134 VC-10 Viscount plus boring stuff!
User currently onlineDufo From Slovenia, joined May 1999, 789 posts, RR: 4
Reply 3, posted (1 year 4 months 3 weeks 5 days 15 hours ago) and read 6448 times:

We had those fans on L410 and they were sufficient and caused less clogged noses and soar throats than air conditioning with apu on other types.
Blades are made of rubber, you can easily stop them even with a finger.



I seriously think I just creamed my pants without any influence from any outside variables.
User currently offlineViscount724 From Switzerland, joined Oct 2006, 24080 posts, RR: 22
Reply 4, posted (1 year 4 months 3 weeks 5 days 14 hours ago) and read 6183 times:

Quoting aviatorcraig (Reply 2):
Yeah, and also why are their cockpit panels always painted turquoise,

Also common on many DC-9s.


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User currently offlineNASCARAirforce From United States of America, joined Feb 2005, 3150 posts, RR: 5
Reply 5, posted (1 year 4 months 3 weeks 5 days 11 hours ago) and read 5590 times:

Quoting s5daw (Reply 1):
I have seen a fan in an Antonov An2, but modern jets, really?

Even on the AN-225


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Photo © Bernd Sturm



User currently offlineBMI727 From United States of America, joined Feb 2009, 15489 posts, RR: 26
Reply 6, posted (1 year 4 months 3 weeks 5 days 8 hours ago) and read 5345 times:

Quoting aviatorcraig (Reply 2):
Yeah, and also why are their cockpit panels always painted turquoise,

I want to say that the color was suggested by psychologists because it is supposed to fight fatigue or increase alertness or something like that.

I'm pretty sure they use it for different reasons than doctors do.



Why do Aerospace Engineering students have to turn things in on time?
User currently offlinePtrjong From Netherlands, joined Mar 2005, 3884 posts, RR: 19
Reply 7, posted (1 year 4 months 3 weeks 5 days 2 hours ago) and read 5180 times:

Quoting Dufo (Reply 3):

Brilliant. I guess it never occurred to the topic starter it might simply be a good idea.



The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently offlineAirlineCritic From Finland, joined Mar 2009, 680 posts, RR: 1
Reply 8, posted (1 year 4 months 3 weeks 4 days 17 hours ago) and read 4941 times:

Because the Russian pilots are friendly, and let the local a.nutter and other fans in for jump seat ride?

Oh wait, you meant something else...


User currently offlineHAWK21M From India, joined Jan 2001, 31573 posts, RR: 57
Reply 9, posted (1 year 4 months 3 weeks 4 days 15 hours ago) and read 4856 times:

Quoting aviatorcraig (Reply 2):
Yeah, and also why are their cockpit panels always painted turquoise, AND why do all Russian aircraft from fighters to transports have their wheel hubs painted olive drab green? I think we should be told!  

They Russians believed it reduced fatigue & kept the crew Alert  
Quoting tmoney (Thread starter):

Besides those fans don't have covers around their blades! Doesn't that pose a threat to the flight crew?

Any pics......was these unpressurised Aircraft.



Think of the brighter side!
User currently offlinebohica From United States of America, joined Feb 2004, 2629 posts, RR: 0
Reply 10, posted (1 year 4 months 3 weeks 4 days 14 hours ago) and read 4806 times:

Quoting tmoney (Thread starter):
there's a link on Yahoo answers that says because their APU generators aren't strong enough and their aircrafts' airconditioners draw too much power from the engines.

I think it has more to do whether the cockpit was equipped with gasper vents or not. In the pictures with fans, I didn't see any gasper vents but I saw them in photos of the more modern planes without fans.

Quoting Ptrjong (Reply 7):
I guess it never occurred to the topic starter it might simply be a good idea.

The OP never said it was a bad idea. He is just asking a question.


User currently offlinetmoney From Myanmar, joined Nov 2011, 42 posts, RR: 0
Reply 11, posted (1 year 4 months 3 weeks 4 days 13 hours ago) and read 4755 times:

Quoting bohica (Reply 10):
The OP never said it was a bad idea. He is just asking a question.

Thank you. Yes, I was just asking a question.

And thanks for all the input too. I just thought it's ironic that while the massive jet engines' fan blades are pushing the aircraft forward, there are tiny lil fans that's blowing at almost the opposite direction in the flight deck.


User currently offlinebikerthai From United States of America, joined Apr 2010, 2011 posts, RR: 4
Reply 12, posted (1 year 4 months 3 weeks 4 days 12 hours ago) and read 4713 times:

That is an interesting trade.

The fan is a simple installation that only require electricity as opposed to ducting and stuff in a gasper air.

How are the equipment in the cockpit cooled? Draw through or blow-by? If it's draw through then the gasper air would require a separate ducting system.

Of course, with the fans you may have higher failure rate/maintenance issue depending or how reliable those fans are . . . but I guess you can still dispatch if one of those fail   

bt



Intelligent seeks knowledge. Enlightened seeks wisdom.
User currently offlinesaafnav From South Africa, joined Mar 2010, 254 posts, RR: 0
Reply 13, posted (1 year 4 months 3 weeks 4 days 6 hours ago) and read 4592 times:

Quoting tmoney (Reply 11):

And thanks for all the input too. I just thought it's ironic that while the massive jet engines' fan blades are pushing the aircraft forward, there are tiny lil fans that's blowing at almost the opposite direction in the flight deck.

So if you put in on the conveyor belt, and have the fans blowing over the pigeons in the back, you won't take off?   



On-board Direction Consultant
User currently offlineKC135Hydraulics From United States of America, joined Nov 2012, 270 posts, RR: 0
Reply 14, posted (1 year 4 months 3 weeks 4 days 2 hours ago) and read 4517 times:

On the KC-135 we have at least 5 fans on the flight deck. They all have cages around them of course! There is no air conditioning system for use on the ground so they're a requirement for a warm day. You want pictures?

User currently offlinePtrjong From Netherlands, joined Mar 2005, 3884 posts, RR: 19
Reply 15, posted (1 year 4 months 3 weeks 3 days 23 hours ago) and read 4456 times:

Quoting tmoney (Reply 11):

Sorry for that, you're right.



The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently offlinebond007 From United States of America, joined Mar 2005, 5343 posts, RR: 8
Reply 16, posted (1 year 4 months 3 weeks 3 days 14 hours ago) and read 4293 times:

Quoting tmoney (Reply 11):
And thanks for all the input too. I just thought it's ironic that while the massive jet engines' fan blades are pushing the aircraft forward, there are tiny lil fans that's blowing at almost the opposite direction in the flight deck.

Well, wouldn't they be blowing the same direction as the big fans on the wings?

In this case they will of course be providing additional thrust, which is necessary for some of the under-powered Russian aircraft. Obviously 5 fans are required for a fully loaded KC-135, because it's heavier.

They are usually the type that can rotate at least 180 degrees, so you often see the pilots quickly turn them in the opposite direction upon landing, especially if the engines do not have thrust reversers.

Basic stuff really.

Jimbo



I'd rather be on the ground wishing I was in the air, than in the air wishing I was on the ground!
User currently offlineAquila3 From Italy, joined Nov 2010, 243 posts, RR: 0
Reply 17, posted (1 year 4 months 3 weeks 3 days 13 hours ago) and read 4268 times:

Quoting tmoney (Thread starter):


Not only they have Fans. Sometimes they even have Cheerleaders. The Russian version, with the taller MLG.



chi vola vale chi vale vola chi non vola è un vile
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