Aug
29
What is grossly the consuption of Kerosene per km (0,62miles) of a medium size private jet?
Filed Under (Aircraft) by Flyer
Gio met den banjo asked:


Also if someone would know how many liters the take-off (first 1,5 km/0,93miles) consumes.
Thanks.

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Comments

Chris H on 1 September, 2008 at 12:43 pm #

Cessna Citation X uses about 3-4lb/mile, 0.9-1.1kg/km.

This is typical for a mid sized business jet at high cruise power.

Flat out the Citation X burns 5lb/mile or 1.7kg/km at M0.92, approximately.


jet5249 on 3 September, 2008 at 3:25 am #

DC 10 about 10 tons of fuel per hr. small Lear jet about 600 ltr. per hr.


elvinerau187 on 5 September, 2008 at 11:05 pm #

Jet engines aren’t rated the way cars are. Engines are rated in lb/hr, not miles/gallon or gallons/mile. You can extrapolate this fairly easily if you know the flight conditions, but medium-sized jets have fuel burn rates around .8 pounds/hour/pound of thrust. For a Gulfstream G-550 with a range of around 6000 nautical miles at a cruise speed of Mach .8 (actual speed varies with altitude, assume 450 knots), with engines rated at 15,385 pounds of static thrust each, we get around 946.77 pounds / hour. Divide that again by 450 knots to get pounds/ nautical mile, and we end up with about 2.1 pounds per mile. Which works out to about 3 miles per gallon (jet fuel weighs 6 pounds per gallon). And that’s PER ENGINE


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