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A330/A340 FLEET PER-TOF-TOC-12-20 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - MTOW CALCULATION (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-12-30 P 1/2
FCOM 19 AUG 10
EXTRAPOLATION
EXTRAPOLATION
Applicable to: ALL
For a takeoff weight lower than those displayed on the chart, associated speeds are calculated as
follows :
1. For given configuration and wind, note the speeds associated with the takeoff weight in the row
displaying the highest permissible temperature.
2. Apply speed corrections provided at the bottom of the RTOW chart to V1, VR and V2 limited to the
minimum speeds.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - MTOW CALCULATION (TEMPERATURE ENTRY)
Intentionally left blank
A330/A340 FLEET PER-TOF-TOC-12-30 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - MTOW CALCULATION (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-12-40 P 1/2
FCOM 19 AUG 10
MAXIMUM STRUCTURAL TAKEOFF WEIGHT
MAXIMUM STRUCTURAL TAKEOFF WEIGHT
Applicable to: ALL
The maximum structural takeoff weight is a weight limitation depending on the aircraft.
This limitation is provided in the Flight Manual and in the chapter limitation of the FCOM3.
Compare the maximum structural takeoff weight to the maximum permissible takeoff weight
computed for given conditions and retain the lower of the two values.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - MTOW CALCULATION (TEMPERATURE ENTRY)
Intentionally left blank
A330/A340 FLEET PER-TOF-TOC-12-40 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - MTOW CALCULATION (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-12-50 P 1/2
FCOM 19 AUG 10
SUMMARY
SUMMARY
Applicable to: ALL
The following flow diagram gives the different steps to follow.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - MTOW CALCULATION (TEMPERATURE ENTRY)
Intentionally left blank
A330/A340 FLEET PER-TOF-TOC-12-50 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-14-10 P 1/2
FCOM 19 AUG 10
DEFINITION OF FLEXIBLE TAKEOFF
DEFINITION OF FLEXIBLE TAKEOFF
Applicable to: ALL
In many cases the aircraft takes off with a weight lower than the maximum permissible takeoff
weight. When this happens, it can meet the required performance (runway, second segment,
obstacle,...) with a decreased thrust that is adapted to the weight : this is called FLEXIBLE TAKEOFF
and the thrust is called FLEXIBLE TAKEOFF THRUST.
The use of flexible takeoff thrust saves engine life.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
Intentionally left blank
A330/A340 FLEET PER-TOF-TOC-14-10 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-14-20 P 1/2
FCOM 19 AUG 10
USE OF FLEXIBLE TAKEOFF
USE OF FLEXIBLE TAKEOFF
Applicable to: ALL
The pilot can use flexible takeoff when the actual takeoff weight is lower than the maximum
permissible takeoff weight for the actual temperature. The maximum permissible takeoff weight
decreases when temperature increases, so it is possible to assume a temperature at which
the actual takeoff weight would be the limiting one. This temperature is called FLEXIBLE
TEMPERATURE or assumed temperature and is entered in the FADEC via the MCDU PERF TO
page in order to get the adapted thrust.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
Intentionally left blank
A330/A340 FLEET PER-TOF-TOC-14-20 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-14-30 P 1/2
FCOM 19 AUG 10
REQUIREMENTS
REQUIREMENTS
Applicable to:
Thrust must not be reduced by more than 25 ‐ % of the full rated takeoff thrust.
‐ The flexible takeoff N1 cannot be lower than the Max Climb N1 at the same flight conditions.
The FADEC takes the above two constraints into account to determine the flexible N1.
　
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