Why nitrogen?

Peter Dohm wrote:
The only difference that would make nitrogen seen really beneficial to me
would be in the case of an aircraft which is kept hangared and seldom
operated. Then, if the tire threads last a number of years, and the tires
are sheltered from UV radiation, the inert nature of the nitrogen could be
usefull.


In theory, perhaps. In practice, tires oxidize from the outside as well as
the inside. I've noticed that every time I've bought expensive, long-life
tires, they have to be chucked because the sidewalls are rotting, even though
the tread is still good. It's not just air, but pollutants (particularly in
the cities). Ozone, a common urban pollutant, is particularly bad for tires.

John Galban=====N4BQ (PA28-180)

--
Message posted via AviationKB.com
http://www.aviationkb.com/Uwe/Forums...ation/200809/1

"JGalban via AviationKB.com" u32749@uwe wrote in message
news:8a4950eac1beb@uwe...
Peter Dohm wrote:
The only difference that would make nitrogen seen really beneficial to me
would be in the case of an aircraft which is kept hangared and seldom
operated. Then, if the tire threads last a number of years, and the tires
are sheltered from UV radiation, the inert nature of the nitrogen could be
usefull.


In theory, perhaps. In practice, tires oxidize from the outside as well
as
the inside. I've noticed that every time I've bought expensive, long-life
tires, they have to be chucked because the sidewalls are rotting, even
though
the tread is still good. It's not just air, but pollutants (particularly
in
the cities). Ozone, a common urban pollutant, is particularly bad for
tires.

John Galban=====N4BQ (PA28-180)

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.

Peter

"Peter Dohm" wrote in
:

"JGalban via AviationKB.com" u32749@uwe wrote in message
news:8a4950eac1beb@uwe...
Peter Dohm wrote:
The only difference that would make nitrogen seen really beneficial
to me would be in the case of an aircraft which is kept hangared and
seldom operated. Then, if the tire threads last a number of years,
and the tires are sheltered from UV radiation, the inert nature of
the nitrogen could be usefull.


In theory, perhaps. In practice, tires oxidize from the outside as
well
as
the inside. I've noticed that every time I've bought expensive,
long-life tires, they have to be chucked because the sidewalls are
rotting, even though
the tread is still good. It's not just air, but pollutants
(particularly in
the cities). Ozone, a common urban pollutant, is particularly bad
for tires.

John Galban=====N4BQ (PA28-180)

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,



Here is an explanation for you.


If you find it too difficult to understand I'll have a look around for
the Litle Golden Book of Wonder version for you.



http://earthguide.ucsd.edu/globalcha...arming/03.html



Bertie

"Bertie the Bunyip" wrote in message
...
"Peter Dohm" wrote in
:

"JGalban via AviationKB.com" u32749@uwe wrote in message
news:8a4950eac1beb@uwe...
Peter Dohm wrote:
The only difference that would make nitrogen seen really beneficial
to me would be in the case of an aircraft which is kept hangared and
seldom operated. Then, if the tire threads last a number of years,
and the tires are sheltered from UV radiation, the inert nature of
the nitrogen could be usefull.


In theory, perhaps. In practice, tires oxidize from the outside as
well
as
the inside. I've noticed that every time I've bought expensive,
long-life tires, they have to be chucked because the sidewalls are
rotting, even though
the tread is still good. It's not just air, but pollutants
(particularly in
the cities). Ozone, a common urban pollutant, is particularly bad
for tires.

John Galban=====N4BQ (PA28-180)

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,



Here is an explanation for you.


If you find it too difficult to understand I'll have a look around for
the Litle Golden Book of Wonder version for you.



http://earthguide.ucsd.edu/globalcha...arming/03.html



Bertie

You are too kind!

BTW, it did make a good case for the expansion of nuclear power--which I
have long favored.

Peter

"Peter Dohm" wrote in news:csYzk.30660$kh2.574
@bignews3.bellsouth.net:

"Bertie the Bunyip" wrote in message
...
"Peter Dohm" wrote in
:

"JGalban via AviationKB.com" u32749@uwe wrote in message
news:8a4950eac1beb@uwe...
Peter Dohm wrote:
The only difference that would make nitrogen seen really beneficial
to me would be in the case of an aircraft which is kept hangared
and
seldom operated. Then, if the tire threads last a number of years,
and the tires are sheltered from UV radiation, the inert nature of
the nitrogen could be usefull.


In theory, perhaps. In practice, tires oxidize from the outside
as
well
as
the inside. I've noticed that every time I've bought expensive,
long-life tires, they have to be chucked because the sidewalls are
rotting, even though
the tread is still good. It's not just air, but pollutants
(particularly in
the cities). Ozone, a common urban pollutant, is particularly bad
for tires.

John Galban=====N4BQ (PA28-180)

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,



Here is an explanation for you.


If you find it too difficult to understand I'll have a look around
for
the Litle Golden Book of Wonder version for you.



http://earthguide.ucsd.edu/globalcha...arming/03.html



Bertie

You are too kind!

BTW, it did make a good case for the expansion of nuclear power--which
I
have long favored.


No, it didn't.

Maybe if I find something with pictures for you.



Bertie

"Bertie the Bunyip" wrote in message
...
"Peter Dohm" wrote in news:csYzk.30660$kh2.574
@bignews3.bellsouth.net:

"Bertie the Bunyip" wrote in message
...
"Peter Dohm" wrote in
:

"JGalban via AviationKB.com" u32749@uwe wrote in message
news:8a4950eac1beb@uwe...
Peter Dohm wrote:
The only difference that would make nitrogen seen really beneficial
to me would be in the case of an aircraft which is kept hangared
and
seldom operated. Then, if the tire threads last a number of years,
and the tires are sheltered from UV radiation, the inert nature of
the nitrogen could be usefull.


In theory, perhaps. In practice, tires oxidize from the outside
as
well
as
the inside. I've noticed that every time I've bought expensive,
long-life tires, they have to be chucked because the sidewalls are
rotting, even though
the tread is still good. It's not just air, but pollutants
(particularly in
the cities). Ozone, a common urban pollutant, is particularly bad
for tires.

John Galban=====N4BQ (PA28-180)

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,



Here is an explanation for you.


If you find it too difficult to understand I'll have a look around
for
the Litle Golden Book of Wonder version for you.



http://earthguide.ucsd.edu/globalcha...arming/03.html



Bertie

You are too kind!

BTW, it did make a good case for the expansion of nuclear power--which
I
have long favored.


No, it didn't.

Maybe if I find something with pictures for you.



Bertie




You're a cross posting dumb ass.

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.

"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.

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

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.

"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.