737-700/800 fuel burn?

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blackberrypilot

Well-Known Member
Does anyone know approximately how many gallons or pounds per hr the Boeing 737-700 burns (average)? About 750 gallons maybe?

I'm working on a project for school and trying to do a calculation. Any help is gladly appreciated.
 
blackberrypilot said:
Does anyone know approximately how many gallons or pounds per hr the Boeing 737-700 burns (average)? About 750 gallons maybe?

I'm working on a project for school and trying to do a calculation. Any help is gladly appreciated.
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You can approximate a linear relationship between fuel and distance (technically, it's not). For the bigger 737, you can expect a ballpark of 7,000 lbs (1,030 gal @ 6.8 lb/gal) to fly between airports 500 nm apart, and 27,000 lbs to go 2,000 nm. That's two points you can linearly interpolate between.

A better reference might be Section 3.2 of Boeing's Airplane Characteristics documents.
http://www.boeing.com/commercial/airports/737.htm
 
blackberrypilot said:
Does anyone know approximately how many gallons or pounds per hr the Boeing 737-700 burns (average)? About 750 gallons maybe?

I'm working on a project for school and trying to do a calculation. Any help is gladly appreciated.
Click to expand...


What kind of school would require you to know the fuel burn of a 737 for some kind of project? Obviously, not a type of school I've ever attended.
 
Probably a term paper. I did a term paper on the MD-12X versus the original 777 (w/folding wings) and had a lot of exchanges with Boeing and McDonnell-Douglas engineers during that time.
 
I think we have at least one 737 pilot hanging around here...trying to remember names, though.
 
TFaudree_ERAU said:
Riddle nerd.
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Totally.

At least it was more interesting than when I did a term paper on the mathematic concepts behind GPS and how the P-Code was manipulated to create selective availability.

Of course, this was back in the days of ARSA's, TRSA's and TCA's.
 
Doug Taylor said:
Probably a term paper. I did a term paper on the MD-12X versus the original 777 (w/folding wings) and had a lot of exchanges with Boeing and McDonnell-Douglas engineers during that time.
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Hey! Gather 'round the youngins! Old Man Taylor is having a lucid moment and is telling stories about how business got did before the internet.

MD-12.jpg
 
Minuteman said:
Hey! Gather 'round the youngins! Old Man Taylor is having a lucid moment and is telling stories about how business got did before the internet.
MD-12.jpg
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Dude, whats up with photo shopping a picture of an A380? At least come up with something original.
 
From what I can remember back in my ATA days, our 737-800 initially was 5000lbs/hr. Since we had winglets I believe the actually figure was down around 4600.
 
You can also rule-of-thumb fuel flow with a Gross Weight, L/D, and a TSFC.

For example, a 737 at 150,000 lbs, L/D=10, and TSFC=0.37 (lbm/lbf).... (150,000 / 10) × 0.37 = 5045 pph.

Using the same numbers for something bigger at 550,000 lbs, you get 18,500 pph (4,625 per four engines).

(I don't trust the numbers in the Wikipedia article.)
 
Minuteman said:
You can also rule-of-thumb fuel flow with a Gross Weight, L/D, and a TSFC.

For example, a 737 at 150,000 lbs, L/D=10, and TSFC=0.37 (lbm/lbf).... (150,000 / 10) × 0.37 = 5045 pph.

Using the same numbers for something bigger at 550,000 lbs, you get 18,500 pph (4,625 per four engines).

(I don't trust the numbers in the Wikipedia article.)
Click to expand...

Cost index has a lot to do with that number; at 412,000 lbs (MTOW), our 767s burn approximately 13,000 lbs/hr for the first hour at cruise.
 
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