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Why nitrogen?



 
 
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Old September 17th 08, 10:38 PM posted to rec.aviation.piloting
Bob F.[_2_]
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Posts: 84
Default Why nitrogen?

"Morgans" wrote in message
...

"Allen" wrote

Learjets do indeed use bottled oxygen and it is found in the nose bay
area. There is a thin capillary that runs into the cockpit to a pressure
gauge. The pressure gauge displays the pressure in the tank regardless of
whether the valve is turned on or off. The pressure in the tank can read
full on the ground but at low temperature at altitude will read several
hundred pounds less.


They do? For primary breathing air at altitude? Is there no cabin air
pressurization provided by bleed air from the engines?

I'm not doubting your word, just trying to understand. I thought all
bizjets used bleed air to pressurize the cabins.
--
Jim in NC



All the business jets I know of do use bleed air for cabin pressurization,
and have oxygen bottles for emergency when you have a cabin pressure
failure. You only need enough oxygen to get you down to 10k feet. It would
be nice to be conscious during this phase.

--
Regards, Bob F.

 




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