[AT] OT truck tires/driveshaft?

[Ron Cook]

Concur.

Ron Cook
Salix, IA
On 5/19/2014 3:38 PM, Stephen Offiler wrote:
> Ah-HA!  Gotcha.  Heavy aircraft vs. all aircraft; that distinction was
> throwing me.  Thanks for clearing that up.
>
> Thinking about it.. this doesn't really change the point.  One can still
> say THE reason nitrogen is required in aircraft (in those cases where
> nitrogen is required at all) is due to the risk of explosion if oxygen were
> present.  It's not a matter of pressure "stability" at temperature
> extremes.  Or corrosion.  Or anything else the advertising churns out.
>
> Mileage saving!  Good one.  Called on the carpet, they'd cite the diffusion
> rate of N2 vs regular air.  N2 is a slightly larger molecule and diffuses
> thru rubber slightly more slowly than O2.  Note "slightly" and note that
> regular air is nearly 80% N2 in the first place, so it's only about 20% (I
> am using round numbers), that is, the O2 component of regular air, that
> diffuses slightly more rapidly .  What would you call a rate that is 1/5 of
> "slightly"?  Maybe, VERY slightly?  To see a fuel economy difference that
> was large enough to actually measure in the real world, you'd have to let
> diffusion take place for a period of years.
>
> SO
>
>
>
> On Mon, May 19, 2014 at 2:49 PM, Ron Cook <ron at lakeport-1.com> wrote:
>
>> I understand what you are saying and I agree.  I am just pointing out
>> that it is "the reason" for the heavy aircraft, not all aircraft.  All
>> my tires including the ones on my airplanes are filled with air and are
>> legal and I am happy.  We do use nitrogen where dry is a good idea, such
>> as airing up struts, etc.
>> A local tire store advertises heavily that they only fill your tires
>> with mileage saving nitrogen.  I consider it all advertising BS. But
>> many people swear by it.  I am also not all that convinced they use all
>> nitrogen at all.  I don't do business with that place.
>>
>> Ron Cook
>> Salix, IA
>>
>>
>> On 5/19/2014 9:19 AM, Stephen Offiler wrote:
>>> Just saying... the stated reason in the AD is *the* reason that explains
>>> nitrogen in aircraft.  There's a lot of misleading information out there
>>> that tries to suggest otherwise...referring primarly to the advertising
>> and
>>> marketing efforts of those who manufacture nitrogen machines for filling
>>> automotive tires.
>>>
>>> SO
>>>
>>>
>>>
>>>
>>