763ERpax fuel burn
 

Does anyone have the fuel burn of the 763ERpax in usgph?

763 ER fuel flow
 

Depends on the weight and altitude, of course, but typically around 4,300 kilos per hour, which equates to 1,136 U.S. gallons.

Ours are powered by the General Electric CF6-80B6F. For a simple calculation you can use 6000 kilograms (± 1980 US gallons) for the first hour and 5000 kilograms (± 1650 US gallons) for every hour after that.

The more accurate method for calculating your required trip fuel on our aircraft is;
Landing weight – 120,000 kilograms divided by 120,000 kilograms x 100 giving you a percentage fuel consumption over/under norm. Add this to your normal high/low consumption figure. Make this percentage into a decimal add 1. Multiply this by airdistance multiplied by 10.

Example.
Landing weight= 130,000 kilograms.
F-F Factor = +3,5%
Airdistance 3400 nm.

130,000 – 120,000 = 0.083 x 100 = 8.4% + 3.5% = 11.9%
120,000

1.119 x 3400 x 10 = 38,046 kilograms (±12,560 US gallons) will be your required tripfuel.

This flight would take about 7 hours and 30 minutes. The simple calculation would give you a tripfuel of 38,500 kilograms. So you can see that is already pretty close to the more accurate method.

All conversion calculations are based on a Specific Gravity of the fuel of 0.800.
Valid for Cost index 040.

Regards O.