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LAX
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Check Out These Interesting Facts

Tue Nov 06, 2001 9:08 am

I came across this info today [kind of thought-provoking]...........

>>> Transatlantic jets burn between 2.5 and 3 tons of fuel per hour. In 1988, commercial aircraft consumed an estimated 70 percent of all jet fuel (with military and business craft accounting for another 24 percent). The world's aircraft currently produce about 3 percent the carbon dioxide (CO2) gases attributed to human activity.

During takeoff, a jumbo jet can devour 2 million liters (528,344 gallons) of air per second. In the first five minutes of flight, a commercial airliner can burn as much oxygen as 49,000 acres of forest produce in a day. According to Department of Transportation figures, flying a Boeing 747-400 from Washington, DC to San Francisco burns 17,232 gallons of jet fuel. (Fuel efficiency: 6.7 mpg). A Boeing 747 averages 32 minutes taxiing, taking off and landing. During this time, it can generate 190 pounds of NOx — equal to the amount produced by driving a car 53,500 miles.

In addition to producing vapor trails that can stretch thousands of miles across the sky, jet exhaust also triggers the formation of artificial clouds by "seeding" the atmosphere with cloud-forming aerosols — droplets of sulfuric acid and particles of soot. <<<

-----------------------------------------------

Was anyone aware of these somewhat overwhelming stats?

It's a wonder we're all still breathing.
But, it's worth every bit of oxygen used just to watch a B747 rise skyward....Agreed???

 Smile Smile Smile Smile Smile Smile Smile
 
Boeing727
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RE: Check Out These Interesting Facts

Tue Nov 06, 2001 9:14 am

People always look @ me funny when I tell them that AVGAS still has a little lead in it...burn baby burn....
Boeing727
 
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RE: Check Out These Interesting Facts

Tue Nov 06, 2001 9:14 am

Wow!!! That is very interesting!
 
khi747
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RE: Check Out These Interesting Facts

Tue Nov 06, 2001 12:53 pm

Very interesting stuff but may i ask how did you come up with the fuel efficiency figure of 6.7mpg for the IAD to SFO flight??? If the plane burns 17,232 gallons of fuel...given that fuel economy....the distance between the two cities would equate to 115,454 miles !!
 
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LAX
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RE: Check Out These Interesting Facts

Tue Nov 06, 2001 12:59 pm

KHI747.......

I myself didn't come up with anything here.

I just copied these interesting facts from ..............

http://www.earthisland.org/eijournal/new_articles.cfm?articleID=219&journalID=47


 
strickerje
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RE: Check Out These Interesting Facts

Tue Nov 06, 2001 1:30 pm

Maybe it meant gallons per mile-- which would make the distance 2572 miles. (which is not exact, but it's within 200 miles of the actual distance, and consider that number may have been rounded)

-Jeffrey S.
 
speedbird092
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RE: Check Out These Interesting Facts

Tue Nov 06, 2001 1:33 pm

Interesting.... just want to point out though, that these seem a little biased coming from an environmental group.

Fuel efficiency for an airliner is actually pretty high when you consider the fact that you're transporting 300 people at once.
 
Cessnapimp
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RE: Check Out These Interesting Facts

Tue Nov 06, 2001 1:43 pm

Yeah, those "greensters" are always trying to screw with our minds trying to make us think we're polluting for doing this and taking a chunk of ozone for doing that... the nerve...

...oh, which makes me remember, here's another good one, a 747 on takeoff will breathe in as much air as a human male in 50 years.

Cool, so that's that big noise when they takeoff...
 
yow
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RE: Check Out These Interesting Facts

Wed Nov 07, 2001 2:09 am

I read recently that SUVs are far more pollutant than aircraft. If you were to transport 300 people (4 persons per car = 75 cars) from IAD to SFO in sport utility vehicles versus flying them in a 744, I think that in all likelyhood the SUVs would use more fuel.
 
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RE: Check Out These Interesting Facts

Wed Nov 07, 2001 2:18 am

cool!
 
lapa_saab340
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RE: Check Out These Interesting Facts

Sat Nov 10, 2001 5:56 pm

Those "greensters" bitch about pollution generated by aircraft (especially the Concorde!) but then drive home in their 5 liter V-8 SUV, making a far more generous contribution to air pollution...

Interesting facts btw!  Smile
 
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VapourTrails
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RE: Check Out These Interesting Facts

Sat Nov 10, 2001 7:56 pm

I love all the info from everyone here, it's great!! I can almost smell the jet fuel from here Big grin The vapo(u)r trails part was also very interesting too.. Big grin

Click for large version
Click here for full size photo!

Photo © Mark Garfinkel


From Australia. Qantas - Spirit of Australia.
 
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RE: Check Out These Interesting Facts

Sat Nov 10, 2001 8:58 pm

>>A Boeing 747 averages 32 minutes taxiing, taking off and landing. During this time, it can generate 190 pounds of NOx — equal to the amount produced by driving a car 53,500 miles.<<

OK, let's say we take a cross-country road trip of the US, say New York to LA. We'll have 4 people plus luggage in the car. Not including stops and such, we'd be driving about 2823 miles according to my Atlas. So, driving 75 groups of people would come out to 211725 miles, or roughly four times the amount that the 747 uses. But wait! These figures don't include running the AC or heat, so we'll just sweat it out.

And with fuel on this car coming in at 20mpg, we would burn about 10,000 gallons of fuel, about 60% of what the airplane would do. But what about if we don't carpool, and get an average of 2 people per car(biz travelers are generally alone, high biz route.)? That's 20,000 gallons, 15% MORE than what a 744 would do.
 
johnnybgoode
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RE: Check Out These Interesting Facts

Sat Nov 10, 2001 10:27 pm

Lowfareair is absolutely right!!!

some years ago when i was still at school one of my teachers told me that if you would only ride a bike for a year, not using cars or airplanes or buses, and then take a trip from germany to mexico by plane, one would easily off-set the non-polluting behaviour throughout this entire year.
however, such arguments ignore the fact, as already pointed out, that aircraft don´t transport only one person, but 100, 200, 300, 400 persons at a time.

so in my opinion, in most cases a real comparison cannot be made.

take care
daniel
If only pure sweetness was offered, why's this bitter taste left in my mouth.
 
9A-CRO
Crew
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RE: Check Out These Interesting Facts

Sat Nov 10, 2001 10:46 pm

I have some info on fuel use of airliners 767 uses 3.8liters/seat/100km; 737NG - 3.4-4.9; MD-80 around 4.5; MD-90 4.1; DC-9 5.4; Saab 2000 5.1; DHC 8-400 4.5; Fokker 50 3.8; so in fact it is more or less equvialent of those people driving two in each car, (but the speed would be 8 times lower)
When once you have tasted flight, you will forever walk the earth with your eyes turned skyward...
 
9A-CRO
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RE: Check Out These Interesting Facts

Sat Nov 10, 2001 10:48 pm

also another interesting fact - I was at the presentation of ecological impact of building a new terminal and there was interesting data there - pollutin from the airplanes and from the cars bringing pax to airport are very, very close
When once you have tasted flight, you will forever walk the earth with your eyes turned skyward...

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