A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 6(28)

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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 = 190 000 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
permissible takeoff weight (Refer to PER-TOF-TOC-12-10 CORRECTIONS PRODUCED ON THE
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-14-50 P 7/10
FCOM 19 AUG 10
RTOW CHART: example 2). 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 = 144 kt
ApplyWET correction
For􀀃flexible􀀃temperature􀀃<􀀃TVMC􀀃(54􀀃°),􀀃▹Tflex􀀃=...................................................................0􀀃°C􀀃
Intermediate flex temperature................................................................................................50 °C
Associated speeds,
V1 = 144 kt - 2 = 142 kt
VR = 144 kt - 0 = 144 kt
V2 = 148 kt - 0 = 148 kt
Since the correction on V2 is 0, no V2 check against VMU limitation is necessary.
Apply QNH correction
For􀀃flex􀀃temperature􀀃<􀀃TVMC􀀃(54􀀃°),􀀃▹Tflex􀀃=........................................................................􀀃0􀀃°C􀀃
Maximum flexible temperature............................................................................................ =50 °C
Check􀀃that􀀃OAT/TREF􀀃<􀀃flex􀀃temperature􀀃≤􀀃TMAXFLEX􀀃
No speed correction.
Takeoff speeds are V1 = 142 kt, VR = 144 kt, V2 = 148 kt
Takeoff Configuration : 1+ F
Tflex V1 VR V2
Chart temperature 50 144 144 148
FCOM correction(s)
Intermediate value 50 144 144 148
WET Correction 0 -2 0 0
Intermediate value 50 142 144 148
QNH Correction 0 0 0 0
Final value 50 142 144 148
COMBINING CORRECTIONS FROM FCOM AND CHART
Applicable to:
1. Apply corrections from FCOM (Refer to PER-TOF-TOD-24 EFFECT OF QNH AND BLEEDS).
2. Apply corrections from the RTOW chart.
Apply speed corrections except for QNH and bleed influences.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (TEMPERATURE ENTRY)
A330/A340 FLEET PER-TOF-TOC-14-50 P 8/10
FCOM 19 AUG 10
EXAMPLE 6
DATA: Actual takeoff weight = 220 000 kg
Head wind = 10 kt
Air conditioning ON
QNH = 1 028 hPa
WET runway
Use the chart (Refer to PER-TOF-TOC-10-30 CHART LAYOUT). Determine the maximum
permissible takeoff weight (Refer to PER-TOF-TOC-12-10 COMBINING CORRECTIONS FROM
FCOM AND CHART: example 3). The actual weight being lower than the maximum one, flexible
takeoff is possible.
• Enter the 10 kt head wind column and interpolate for 220 000 kg, CONF 1+F,
Flexible temperature.............................................................................................................. 48 °C
• Enter the 10 kt head wind column and interpolate for 220 000 kg, CONF 2,
Flexible temperature.............................................................................................................. 48 °C
　
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