Vapour trails

On Sun, 12 Dec 2004 13:30:36 -0700, Newps wrote
in ::

Larry Dighera wrote:


[Temperature related diatribe snipped]

Stand down wind of an airliner and inhale, then tell me there's no
significant air pollution emanating from turbine engines. When I
worked at LAX I was nearly overcome with the fumes from these fire
breathers as they taxied by.

A bad smell doesn't equate to pollution.

I would expect, that inhaling raw hydrocarbons can be hazardous to
your health. But I could be wrong. :-)

Perhaps the situation is different at altitude, and the turbine
exhaust only produces water and CO2, but I have no way of obtaining
first hand knowledge of that.

On Sun, 12 Dec 2004 11:10:47 -0600, Mike Beede wrote
in ::

In article , Newps wrote:

Larry Dighera wrote:


What seems infinitely more significant is the awesome magnitude of
exhaust spewing from airliners as a result of burning 18,536,000,000
(that's 18-1/2 trillion) gallons of kerosene annually*; one would
expect some environmental impact.

Where I come from, 18e9 is 18 billion.

I can't argue with that. Thanks. (I'll blame the virus from which
I'm trying to recuperate.)

It's still 98%* of all the aviation fuel consumed in US operations.
And that figure appears to fail to account for military and foreign
operations.

* http://www.aopa.org/whatsnew/factcard.pdf

"Morgans" wrote in message Plus jets are more
efficient at altitude, so more air again, right?.

No, less air, because the density of the ambient air is less as altitude
rises. Less air in the front means less air out the back (though the
pressure ratio can be the same). Jet engines produce less thrust at
altitude. There is less cooling air which means that maximum exhaust
temperature is reached at a lower thrust. The efficiency gains come from the
forward speed of the engine (sort of a ram effect) and the lower aerodynamic
drag at altitude (higher true airspeed).

Another thing that is being overlooked, is the HP rating of the engine.

Turbojets have no torque and therefore have no horsepower. There is an
equation for 'equivalent horsepower' which involves an airspeed of around
375 mph.

I'm no expert on this stuff, but I think my thinking (and guestimates) are
about right.

If you are more confused now than before, you get an A+!

D.

Another visualization for this...I visited the GE factory last year and
was able to stand inside the inlet of a 777's GE90 engine. That
particular model had a mass flow rate of about 3,000 lb/s. That's as
much air in one second as there was in the building we were in (a large
warehouse). Pretty impressive.

Be afraid. Be very, very afraid :-)

http://www.stop-chemtrails.com/

Michael Calwell wrote :
take it that vapour trails are the condensed water contained in the
air ingested by the engines.

I can't believe this thread has gone on for 3 days without mention of
the true nature of these "vapor trails".

See the Chemtrails site :
http://www.rense.com/politics6/chemdatapage.html

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

Hey, don't make fun. These Chemtrails contain large amount of
Dihydrogen Monoxide. Dihydrogen Monoxide is responsible for untold
number of deaths every year!!
Check out http://www.dhmo.org


-Robert (hiding in fear of everything)

Actually, if that number's written right, it's 18 1/2 BILLION.

mike regish

"Larry Dighera" wrote in message
...

What seems infinitely more significant is the awesome magnitude of
exhaust spewing from airliners as a result of burning 18,536,000,000
(that's 18-1/2 trillion) gallons of kerosene annually*; one would
expect some environmental impact.

* http://www.aopa.org/whatsnew/factcard.pdf

I've gradually built up a tolerance to that stuff so that now I can drink it
by the quart and it doesn't even hurt me.

mike regish

"Robert M. Gary" wrote in message
oups.com...
Hey, don't make fun. These Chemtrails contain large amount of
Dihydrogen Monoxide. Dihydrogen Monoxide is responsible for untold
number of deaths every year!!
Check out http://www.dhmo.org


-Robert (hiding in fear of everything)

mike regish wrote:

I've gradually built up a tolerance to that stuff so that now I can drink it
by the quart and it doesn't even hurt me.

That's nothin'! I *bathe* in it every day!

George Patterson
The desire for safety stands against every great and noble enterprise.