CRJ 10th Stage Bleed Air

p1l07m4n

p1l07m4n

SF340 Pirate, First Mate
The instructors out at the airport were trying to figure out what 5 things are outputs for the 10th Stage Bleed Air. I got curious, and thought I would ask.
 
p1l07m4n said:
The instructors out at the airport were trying to figure out what 5 things are outputs for the 10th Stage Bleed Air. I got curious, and thought I would ask.
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The heater for my 1.seat and 2.coffee. When you go through clouds a collector off the 10th stage creates 3.FO hair gel that must be emptied prior to the next flight. 10th stage bleed also provides 4.liquid awesome and it provides air for 5.the thrust reversers which ARE cool. Because TR on a CRJ do more than make noise, they make awesome. If you need to stop however, use the brakes.
 
p1l07m4n said:
The instructors out at the airport were trying to figure out what 5 things are outputs for the 10th Stage Bleed Air. I got curious, and thought I would ask.
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Are you asking what 10th Stage Bleed Air is used for on the CRJ? If so, it's Air Conditioning, Avionics Cooling, Pressurization and Engine Starts.
 
CRJDriver said:
Are you asking what 10th Stage Bleed Air is used for on the CRJ? If so, it's Air Conditioning, Avionics Cooling, Pressurization and Engine Starts.
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I don't have a PRM anywhere near me so I'm kind of fuzzy. How exactly is it used for Avionics cooling? Unless you mean the air from the cabin is moved over the racks below the cabin floor?
 
BobDDuck said:
I don't have a PRM anywhere near me so I'm kind of fuzzy. How exactly is it used for Avionics cooling? Unless you mean the air from the cabin is moved over the racks below the cabin floor?
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That's spot on, and I know it's kind of indirect (has to hit the PACKs). As you know, the QRHs for DISPLAY COOL, AVIONICS COOL, etc., will direct you to select and monitor the ECS synoptic (which obviously shows 10th stage air entering the manifold and going to the PACKs).

Kind of in the realm of 7th stage bleeds, it isn't discussed frequently.
 
I think of 10th stage air as being hot. Once it cools down it's not really 10th stage anymore and I consider it PACK air, or something else.

On an unrelated note, I just flew a 200 around all day today that got a RPACK HI PRESS message every time we swapped the bleeds from the APU to the engine, even if the power was pulled back first or the APU bleed was closed before the 10th stage was open. What a massive annoyance to get that at 1000 AGL on every take off.
 
jynxyjoe said:
The heater for my 1.seat and 2.coffee. When you go through clouds a collector off the 10th stage creates 3.FO hair gel that must be emptied prior to the next flight. 10th stage bleed also provides 4.liquid awesome and it provides air for 5.the thrust reversers which ARE cool. Because TR on a CRJ do more than make noise, they make awesome. If you need to stop however, use the brakes.
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Excellent!

:laff: :laff: :laff:
 
Kinda word mincing but the 10th stage provides pnuematics for the P.A.C.Ks and the starters. What PACKs do is another question perhaps? KISS principle?
 
Screaming_Emu said:
I agree, I hate questions like "name the 5 things..." Questions like that test only rote knowledge.
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Yeah, but this was just a random trivia question tossed my way. I haven't studied any jet systems yet, I was just curious. If you want to explain that system in a little detail, I would be more than grateful. I enjoy learning anything I can that is aviation related!
 
C150J said:
This is a good place to start:

http://en.wikipedia.org/wiki/Bleed_air


Have fun!
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Ok, so after reading into it, I see that bleed air is used for different functions, i.e. wing anti-ice, engine anti-ice, pressurization ect. The engines have compressors at different stages, and each stage provides the bleed air for different components. Some of the compressors are high pressure compressors while others are lower.
 
p1l07m4n said:
Ok, so after reading into it, I see that bleed air is used for different functions, i.e. wing anti-ice, engine anti-ice, pressurization ect. The engines have compressors at different stages, and each stage provides the bleed air for different components. Some of the compressors are high pressure compressors while others are lower.
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Another trivia question for you...how is bleed air used for air conditioning and pressurization? :bandit:
 
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