Why nitrogen?

"Mick" @_#`~#@.^net wrote in :


"Peter Dohm" wrote in message
. ..
"Rich Ahrens" wrote in message
. net...
on 9/16/2008 8:39 PM Peter Dohm said the following:
"Rich Ahrens" wrote in message
. net...
on 9/16/2008 6:31 PM Peter Dohm said the following:
Ordinarily, I would just let this slide; but since the greenies
have decided that CO2 (which is nature's means of recycling
oxygen) and O3 (which is nature's cleanser of the atmosphere) are
"pollutants" according to the strange reasoning of their adled
brains, I feel compelled to point out that I suggested that the
aircraft would be sheltered in a hangar--which would protect the
outsides of the tires from part of the damage. They still won't
last until the treads wear out, but it will help.
You're suggesting hangars are so airtight that CO2 and O3 are
somehow sealed away from the tires inside? The effect of O3 on
tires is not through increased UV or global warming. It's direct
chemical interaction with the polymer chains in the rubber
compounds.

Not at all. However, UV is supposedly a player in rubber
deterioration.

Via a separate mechanism. That's why tires are made and/or treated
with ozone protection additives.

There is not much you can do about O3, you'll just have to live
with it.

Bull****. Reduce the amount of hydrocarbon and nitrogen oxides
emitted by various sources and you reduce the amount of low-level
ozone produced by their interactions. I'm not talking about the
ozone layer here. I mean the air we're breathing at our level of the
atmosphere.

...and YOU are going to accomplish all of that for the good of your
tires in YOUR hangar...

WOW! I'm VERY impressed.



Yeah! Me too!


Enough to distract you from the ball of yarn you were chasing around the
floor?


Bertie

"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.

"Morgans" wrote in
:


"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.



They do you idiot. Loss of pressurisation was being discussed.

Learn to read...


Bertie

"Bertie the Bunyip" wrote in message
...

Learn to read...


Bertie

Why you can't.

"Bertie the Bunyip" wrote in message
...
John Godwin wrote in news:Xns9B1BD7A3321FBAvSvcs@
208.49.82.60:

"Peter Dohm" wrote in
:

In the case of light plane tires, I agree with you that really dry
air should work well enough to make the issue trivial. But, if
you need nitrogen for any other reason, it is the cheapest thing
that I know of in an L bottle or larger and using it in the tires
may be essentially free--because you may have to pay rental on the
tanks if they are not refilled at a prescribed interval.

My daughter is a Crew Chief on a C-130 Herc and said that Nitrogen is
used in the struts.


Your daughter smokes cigars?



Bertie

You're a dumb ass.

"Mick" @_#`~#@.^net wrote in :


"Bertie the Bunyip" wrote in message
...

Learn to read...


Bertie

Why you can't.



And you might learn to write.



Bertie

"Mick" @_#`~#@.^net wrote in :


"Bertie the Bunyip" wrote in message
...
John Godwin wrote in
news:Xns9B1BD7A3321FBAvSvcs@ 208.49.82.60:

"Peter Dohm" wrote in
:

In the case of light plane tires, I agree with you that really dry
air should work well enough to make the issue trivial. But, if
you need nitrogen for any other reason, it is the cheapest thing
that I know of in an L bottle or larger and using it in the tires
may be essentially free--because you may have to pay rental on the
tanks if they are not refilled at a prescribed interval.

My daughter is a Crew Chief on a C-130 Herc and said that Nitrogen
is used in the struts.


Your daughter smokes cigars?



Bertie

You're a dumb ass.






Nope.


Bertie

"Bertie the Bunyip" wrote in message
...
"Mick" @_#`~#@.^net wrote in :


"Bertie the Bunyip" wrote in message
...

Learn to read...


Bertie

Why you can't.



And you might learn to write.



Bertie

Why you can't.

"Mick" @_#`~#@.^net wrote in :


"Bertie the Bunyip" wrote in message
...
"Mick" @_#`~#@.^net wrote in :


"Bertie the Bunyip" wrote in message
...

Learn to read...


Bertie

Why you can't.



And you might learn to write.



Bertie

Why you can't.


Yeh. You really don't realise what you're saying here, do you, illiterate
boi?



Bertie

"Bertie the Bunyip" wrote in message
...
"Mick" @_#`~#@.^net wrote in :


"Bertie the Bunyip" wrote in message
...
"Mick" @_#`~#@.^net wrote in :


"Bertie the Bunyip" wrote in message
...

Learn to read...


Bertie

Why you can't.



And you might learn to write.



Bertie

Why you can't.


Yeh. You really don't realise what you're saying here, do you, illiterate
boi?



Bertie

Why you don't?