Fuel Consumption of heavies?

[The man formerly known as]

I heard a soundbite the other day that a 747 uses a ton of fuel taxiing to the hold.(give or take).

This got me thinking.

What are the take off and cruise burn rates of your aircraft.

Especially interested to know how much fuel per minute is going into Concordes engines in reheat.

[HighSpeed]

On the B777 with RR Trend 890 engines, at MTOW about 5 tons/eng, at MLW about 3 tons/eng.

HS

[mabrodb]

Each engine burns around 4000~5000 kgs/hr.
see link to my performance web page:


http://members.home.net/marcbrodbeck/docs/concorde.pdf

[twistedenginestarter]

<font face="Verdana, Arial, Helvetica" size="2">I heard a soundbite the other day that a 747 uses a ton of fuel taxiing to the hold.(give or take).</font>

I think that would be a rather extreme situation.

[Cough]

Don't think so. My 737 will use 2-300kg on a standard taxi. If you sit around waiting for things to happen (busy airport), then the worst I have burnt is 850kg. And as I say this is just a icle 737.

Cooooouuuu....gh

[Bullethead]

A B747-400 standard taxi allowance is 1,000kg and the allowed usage rate is 70 kg/min. We used over 2000kgs on taxi at JFK earlier this evening but the place was clogged up with approx thirty other a/c taxiing in front of us. It took 1:15 from pushback to airborne, and that was reasonably short! Average flow rate in cruise is 1,000kg every 5 minutes or 12,000kg/hr, a lot higher when heavy, around 15,000kg/hr down to about 9,000kg/hr just before descent. Total descent burn, if not d!cked around by wx or the air traffic situation, less than 1,000kg. Takeoff usage rate max thrust no derate around 8,000kgs/hr per engine.
See ya!

[The man formerly known as]

Aha it was true! (in extreme circumstances) 70kg/min is about 20gall/min if my sums are right, amazing.

Cough, Bullethead thanks for the information.

Twisted , So there!!

Lets have more for other types.

[Speedbird252]

I got off a 767-300 this week from Corfu and im trying to remember the stats on the in flight blurb.

4000gls from take-off to cruise, but only 500gls from cruise to landing.

Is this correct? Cool if it is!!

Kind Regards.

PS. Why dont they resurface the runway at Corfu? I thought we had landed on the beach...

[GotTheTshirt]

Interesting Topic!
If you look at the Flight Manual for most aircraft there is a Max Taxi weight and a Max Take-off weight. The difference is perumably the taxi fuel.
On many aircraft it is quite a big difference.
"Where do it Go??


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When I die, I want to go like my grandfather did, gently while sleeping, and not like his passangers, screaming in terror, looking for the nearest parachute