B747 400 pax fuel consumption
Not enough info about starting conditions but a rough estimate:
Taxi: 1100kg
Take-off and climb: 8000kg
Cruise Hour 1: 12000kg
Hour 2: 11500 kg
Hour 3: 11000kg
Hour 4: 10500kg
Hour 5: 10250kg
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Hour 14: 8000kg
Taxi: 1100kg
Take-off and climb: 8000kg
Cruise Hour 1: 12000kg
Hour 2: 11500 kg
Hour 3: 11000kg
Hour 4: 10500kg
Hour 5: 10250kg
.
.
.
.
Hour 14: 8000kg
Nemo Me Impune Lacessit
Join Date: Jun 2004
Location: Derbyshire, England.
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My very rough ball park figure, brakes off to chocks in was 11 tons per hour. 13 hour flight, 143 tons, or thereabouts, it is really only good for a check against gross error. My off the cuff answer would be 55 tons.