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. If holding is to be anticipated, linear holding saves fuel.
6.2.7 APPROACH
. Avoid extending gear unnecessarily early.
6.3 FUEL SAVINGS
The following table gives examples of the savings possible through the application of correct procedures and practices. The values represent typical saving as there is variation dependant on the actual base case considered. However these figures serve to illustrate the magnitude of savings being achieved (or penalties being paid). The savings are expressed in kg of fuel for one flight, with the sector length being representative for each aircraft.
Fuel Savings Possible in the Pre-Flight phase
Item
Variation
A300
A310
A320
A330
A340-200/300
A340-500/600
Sector
2000nm
2000nm
1000nm
4000nm
6000nm
6000nm
CG
mid to aft
710
330
0
600
900
1550
Weight
-1%
MTOW
380
250
100
800
1530
1920
EO Taxi
8 minutes
50
40
25
50
50
70
APU
3 min Grd Power
9
9
6
10
10
14
Ground Idle
3 min APU
18
18
9
15-24
3
9
Misrigged Slat
15mm to zero
90
90
60
270
270
270
Peeling Paint
1sq m slat to zero
12
12
8
60
60
60
Fuel Savings in the In Flight Phase
Item
Variation
A300
A310
A320
A330
A340-200/300
A340-500/600
Sector
2000nm
2000nm
1000nm
4000nm
6000nm
6000nm
TO Conf
Max to min F/S
15
15
10
24
-
50
Climb Rating
Derate 2 to full Climb
NA
NA
NA
30
120-320
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