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A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-14-50 P 3/10
FCOM 19 AUG 10
FOR QNH AND BLEEDS). The actual weight being lower than the maximum one, flexible takeoff
is possible.
Enter the 10 kt head wind column and interpolate for 190 000 kg, CONF 1+F,
Flexible temperature.............................................................................................................. 50 °C
Enter the 10 kt head wind column and interpolate for 190 000 kg, CONF 2,
Flexible temperature.............................................................................................................. 50 °C
Equivalent performance is obtained from the two different configurations.
Retain CONF 1 + F as the speeds are lower.
Takeoff speeds are V1 = 144 kt, VR = 144 kt, V2 = 148 kt
Flexible temperature with air conditioning OFF.....................................................................50 °C
Air conditioning correction.................................................................................................... –6 °C
Refer to PER-TOF-TOD-24 EFFECT OF QNH AND BLEEDS
Maximum flexible temperature............................................................................................ =44 °C
CORRECTIONS FOR WET RUNWAY
Applicable to: ALL
Refer to PER-TOF-CTA-10 GENERAL
CORRECTIONS PRODUCED ON THE RTOW CHART
Applicable to:
For example : Refer to PER-TOF-TOC-10-30 CHART LAYOUT
Description of this correction : Refer to PER-TOF-TOC-10-20 DESCRIPTION OF THE
CORRECTIONS ON TAKEOFF CHART. The list of corrections is not exhaustive, however the most
commonly used corrections are wet runway, QNH, air conditioning and/or anti ice. A maximum of
three corrections can be produced on one chart.
To apply the correction, proceed as follows :
1. Enter the chart with wind and selected configuration. Interpolate for actual takeoff weight. Read
flexible temperature associated with this weight.
2. Apply the first correction :
If􀀃the􀀃flexible􀀃temperature􀀃is􀀃less􀀃than􀀃or􀀃equal􀀃to􀀃TVMC􀀃(line􀀃3),􀀃apply􀀃▹Tflex􀀃correction􀀃from􀀃line􀀃1􀀃
and􀀃apply􀀃speed􀀃corrections􀀃(▹V1/▹VR/▹V2)􀀃from􀀃line􀀃2.􀀃
Else,􀀃(flexible􀀃temperature􀀃greater􀀃than􀀃TVMC),􀀃apply􀀃▹Tflex􀀃from􀀃line􀀃3􀀃and􀀃▹V1/▹VR/▹V2􀀃
corrections from line 4.
Check V2 against VMU limitation (Refer to PER-TOF-TOD-25-20 GENERAL). If V2 is lower than
V2 limited by VMU, flex takeoff is not possible. Set TOGA thrust and retain the speeds associated
with maximum permissible takeoff weight or the speeds read in the chart for the actual weight if
they are all lower.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-14-50 P 4/10
FCOM 19 AUG 10
No speed correction is required for QNH and bleeds influence (Not applicable to maximum takeoff
weight determination).
3. To combine a second and/or a third correction, proceed as per point 2.
4. Check that the final flexible temperature is :
‐ higher than OAT and TREF
‐ limited to TMAXFLEX
If the check is fulfilled, retain final flexible temperature as the one to be inserted in the MCDU.
If the check is not fulfilled, (final flexible temperature lower than OAT or TREF), no flexible
takeoff is possible.
Use TOGA thrust and retain speeds that have been calculated for the maximum permissible
takeoff weight. (Refer to PER-TOF-TOC-14-60 FLEXIBLE TAKEOFF NOT POSSIBLE)
Note: QNH correction is given for ± 10 hPa . It is allowed to ‐ extrapolate linearly for greater
QNH deviation.
‐ Corrections from the chart must be applied from top to bottom, i.e. in the RTOW (Refer to
PER-TOF-TOC-10-30 CHART LAYOUT), apply the wet influence first.
Note: ‐ When the flexible temperature is higher than TVMC, it is allowed to limit the flexible
temperature to TVMC and apply only corrections from lines 1 and 2.
‐ If asterisk or dotted lines appear in the correction boxes, refer to more conservative
corrections provided in the FCOM.
EXAMPLE 5
DATA: Actual takeoff weight = 220 000 kg
Head wind = 10 kt
QNH = 1 028 hPa
WET runway
Air conditioning OFF
Use the chart : (Refer to PER-TOF-TOC-10-30 CHART LAYOUT). Determine the maximum
　
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