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Fuel saving for a medium size Fleet
(model calculation)

Calculations below are basing on an average taxi time of 13 minutes before departure. The value is 4 minutes less, then the average taxi time published by the Department of Transportation (DOT), in order to consider the spool-up times of the engines.

Type of Aircraft Number of Aircrafts Type of Engine * Idle Fuel Flow Starts/Landings per Day Total Fuel per Aircraft Type and Day
777-300ER 11 GE90-115B 0,3800 kg/sec. 1 6520 kg
777-200ER 6 GE90-110B1 0,3700 kg/sec. 1 3463 kg
A330-300 8 RR Trent 772B 0,2800 kg/sec. 1 3494 kg
767-300ER 30 PW4060-2 0,2100 kg/sec. 2 19656 kg
A321-200 10 CFM56-5B3/P 0,1200 kg/sec. 2 3744 kg
A320-200 41 CFM56-5A1 0,1000 kg/sec. 3 19188 kg
A319-190 35 CFM56-5A5 0,1000 kg/sec. 3 16380 kg
Embraer 190 45 CF34-10E5A1 0,0880 kg/sec. 3 18532 kg
Embraer 175 15 CF34-8E5A1 0,0700 kg/sec. 3 4914 kg

*   ICAO Engine Emission Databank

Assuming an operating time of 340 days per year, it follows a possible fuel saving of approx.
32.600.000 kg/Year
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