fire !

On Tue, 9 Aug 2005 08:30:48 -0400, "Lynndel K. Humphreys" wrote:

Isn't the shuttle on fire at the tail?

Yeah. Don't worry about it

Dale

Isn't the shuttle on fire at the tail?


--
Mr. Lynndel Humphreys




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Lynndel K. Humphreys wrote:
Isn't the shuttle on fire at the tail?

I asked a much similar question about an earlier flight.
In short, no.
It's the APU (Auxilliary Power Unit) exhaust that you're seeing, on an
IR camera.
As it's quite hot, it looks bright.

Lynndel K. Humphreys schrieb:
Isn't the shuttle on fire at the tail?

Yes. Especially during launch.

- Carsten

On Tue, 9 Aug 2005 08:30:48 -0400, "Lynndel K. Humphreys"
wrote:

Isn't the shuttle on fire at the tail?

To quote JSC on a previous incident, "That isn't a fire." It's just
the APU.

Mary

--
Mary Shafer Retired aerospace research engineer
We didn't just do weird stuff at Dryden, we wrote reports about it.
or

Ian Stirling wrote:
I asked a much similar question about an earlier flight.
In short, no.
It's the APU (Auxilliary Power Unit) exhaust that you're seeing, on an
IR camera.
As it's quite hot, it looks bright.

Especially at night when they use IR cameras.

"Ian Stirling" wrote in message
...
Lynndel K. Humphreys wrote:
Isn't the shuttle on fire at the tail?

I asked a much similar question about an earlier flight.
In short, no.
It's the APU (Auxilliary Power Unit) exhaust that you're seeing, on an
IR camera.
As it's quite hot, it looks bright.

FYI, the APU is used to power the hydraulic systems (control surfaces,
etc...) during reentry. A regular jet uses power from it's engines.
Gliders have to use APU's.

Never noticed that much heat there before. Maybe the control surfaces were
used more this entry. Anything other than a "simple standard" entry this
time?



"Mike Dennis" wrote in message
. ..
"Ian Stirling" wrote in message
...
Lynndel K. Humphreys wrote:
Isn't the shuttle on fire at the tail?

I asked a much similar question about an earlier flight.
In short, no.
It's the APU (Auxilliary Power Unit) exhaust that you're seeing, on an
IR camera.
As it's quite hot, it looks bright.

FYI, the APU is used to power the hydraulic systems (control surfaces,
etc...) during reentry. A regular jet uses power from it's engines.
Gliders have to use APU's.






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"Lynndel K. Humphreys" wrote in message
...
Never noticed that much heat there before. Maybe the control surfaces were
used more this entry. Anything other than a "simple standard" entry this
time?


It's only visible in IR spectrum.

In fact I'm not even sure you can normally see the exhaust ni visible light.



"Mike Dennis" wrote in message
. ..
"Ian Stirling" wrote in message
...
Lynndel K. Humphreys wrote:
Isn't the shuttle on fire at the tail?

I asked a much similar question about an earlier flight.
In short, no.
It's the APU (Auxilliary Power Unit) exhaust that you're seeing, on an
IR camera.
As it's quite hot, it looks bright.

FYI, the APU is used to power the hydraulic systems (control surfaces,
etc...) during reentry. A regular jet uses power from it's engines.
Gliders have to use APU's.






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