Annual cycles: 1100
$0
Annual Flight Hours: 3300
$1.50 $1.70 $1.90 $2.10 $2.30 $2.50 Average sector length (Hours): 3
Additional fuel per sector (KGs): 24
Figure 3-10 Using 800 Ft acceleration altitude instead of 1500 Ft
A low acceleration altitude
Reference documents
will minimize fuel burn
Getting to Grips with Fuel Economy – Issue 4 October 2004 Getting to Grips with Aircraft Performance – Issue 1 January 2002 because arrival at the Point of contact: fltops.perfo@airbus.com
acceleration altitude also
implies that the flaps and slats are retracted. These devices are used to optimize the initial climb but they have the effect of increasing drag, so, the earlier they are retracted the sooner the aircraft enters a more efficient aerodynamic configuration. However, ATC constraints or noise abatement requirements may often preclude the use of a lower acceleration altitude.
3.2.4.10. APPROACH PROCEDURES
A number of fuel saving
Reference documents
measures should be considered
Getting to Grips with Fuel Economy – Issue 4 October 2004 for the aircraft’s approach: Point of contact: fltops.perfo@airbus.com
. The aircraft should be kept in an aerodynamically clean configuration as long as possible with landing gear and flaps only being deployed at the required moment.
. A continuous descent will minimize the time the aircraft spends at a non-
optimum altitude.
. Visual approaches should be considered, as airport instrument approach
paths do not always offer the most direct route to the runway.
3.2.4.11. LANDING FLAP CONFIGURATION
Conf 3, where conditions enable its use, will allow fuel to be saved because it is more aerodynamically efficient than the more typically used FULL configuration (Note: CAT 2/3 low visibility landings nominally require Conf FULL).
However, the following
Reference documents
operational and economic Getting to Grips with Fuel Economy – Issue 4 October 2004 Getting to Grips with Aircraft Performance – Issue 1 January 2002
aspects should be considered
Point of contact: fltops.perfo@airbus.com
for each landing:
.
Aircraft landing weight
.
Runway length available
.
Suitability of low or med automatic braking: reduced deceleration, increase landing distance.
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