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-   -   How much does it burn ? (https://www.pprune.org/tech-log/322242-how-much-does-burn.html)

long-courrier 11th Apr 2008 15:13

How much does it burn ?
 
I'd like to know how much fuel some aircraft burn per hour ?
let say MTOW , no wind.
average figure is perfect for me, i just wish to compare 777 747 340 320 ( or any type )
tks :)

hetfield 11th Apr 2008 15:26

A300

about 5.000kg/h


A340/200

about 6.000 kg/h



B727:D

about 3.600 kg/h

Mac74 11th Apr 2008 16:02

B744

about 12.000 kg/hr :E

Crossbleed 11th Apr 2008 16:10

What's wind got to do with it?
:O

NoNameRecord 11th Apr 2008 21:49

B767-300 ER (PW4060)
Fuel usage during taxi: 26.5L (7 usg) per minute
Fuel usage during take-off: 6L (1.6 usg) per sec
Average fuel usage during flight: 6250L (1651 usg) p/hour

MTOW= 186.880Kg (407,000 lbs)

ChristiaanJ 11th Apr 2008 22:13

long-courrier,
You should really have specified when.
There is a huge difference between take-off and early climb-out, and cruise.
Anyway you got some figures.
Hope they answer your question.

SpootNICK 11th Apr 2008 22:31

DC-10-30 BURNS 9500 KGS / HR When Heavy, drops to about 7500 KGS / HR when empty. MTOW 256T

mcdhu 11th Apr 2008 22:42

A319 - 2000 kgs/hr
A320 - 2400 kgs/hr
A321 - 3000 kgs/hr

411A 12th Apr 2008 01:08

L1011, standard body or short body (-500), average 8,000kg/hr, all economy seating (-500, 309 seats, standard body aeroplane, 362 seats...400 possible with large rear doors).

AtoBsafely 12th Apr 2008 02:07

B744: I'd say average is more like 11,000kg/hr. 12T at level off when heavy, 10T or less late in the flight.

pattern_is_full 12th Apr 2008 03:52

"any type"?

Cessna 152 or other 2-seater (Skipper, Traumahawk) with 100-115hp engine - about 16Kg(6 gals.) ph

4-seat/4cyl basic flyabout (Piper Warrior/C172) - 150hp - about 22Kg(8 gals). ph

6-cylinder Saratoga or similar - about 30Kg(11 gals.) ph

In small planes we tend to measure fuel in gallons, but I add Kg conversions for consistency.

The medium-heavy iron burn up the equivalent of 3 small planes per hour (not 3 times the fuel - three complete airplanes fully loaded!) ;)

Phil Squares 12th Apr 2008 04:00

For the 744, 17 T first hour, if heavy the 12 T for 5 hours then 10 T for the remainder of the flight.

10t/hour works for medium weights.

Old Fella 12th Apr 2008 06:32

Fuel Burn
 
Long-courier, as a rough rule of thumb B747 classic with full load of pax on long haul flights you can use 12000 kgs / hour average. e.g. HKG-SYD flight time average 8.5 hours, average fuel burn 102000 Kgs.

Tofu Racing 12th Apr 2008 07:42

As a matter of fact, it has nothing with aircraft type - it depends on engine and engine thrust settings. Multiply SFC - Specific fuel consumption (fuel kg/or lbs per hr per kg/ or lb of thrust) with thrust settings and you'll get what the engine is burning for a given thrust settings.

roljoe 12th Apr 2008 11:17

exact Tofu...nevertheless as the question sounds quite basic..

for a Learjet45, about 1400 lbs/hour in cruise condition..;and the wind has nothing to do..it should be considered like a parameter wich increases or decreases the lenght of the flight...and therefore reduces or increase the Total fuel burned for the trip..

rgds

Flight Detent 12th Apr 2008 11:32

Errr...Hang on Mate...isn't it the wind that goes down them intakes...?

SNS3Guppy 12th Apr 2008 15:25


Errr...Hang on Mate...isn't it the wind that goes down them intakes...?
Aaah...no. It's not.

roljoe 12th Apr 2008 17:04

Errr...Hang on Mate...isn't it the wind that goes down them intakes...?

Hi, so considering your statement...

a no wind day condition..will ground all jet a/c !!!!:E

rada76 12th Apr 2008 17:41

For comparison have a turboprop!

SAAB 2000: 1st hour about 1000kg, subsequent hours 900kg.

Therefore 1 hour flight = 1000kg

2* 1 hour flights = 2000kg

But 1* 2hr flight = 1900kg

Burn holding for departure = 400kg/hr

Hope this helps?

Climb profile= 240kts then Mach 0.50
Cruise= Mach 0.62
Descent Profile Mach 0.62 then IAS 275 Then IAS 250 Below FL100

Engines are AE2100E's


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