A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 6(42)

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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 E
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-16-30 CHART LAYOUT). Determine the maximum
permissible takeoff weight (Refer to PER-TOF-TOC-18-10 CORRECTIONS PRODUCED ON THE
RTOW CHART). 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.............................................................................................................. 54 °C
Enter the 10 kt head wind column and interpolate for 220 000 kg, CONF 2,
Flexible temperature.............................................................................................................. 52 °C
Retain CONF 1 + F.
Takeoff speeds are V1 = 145 kt, VR = 154 kt, V2 = 159 kt
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (WEIGHT ENTRY)
A330/A340 FLEET PER-TOF-TOC-20-50 P 5/10
FCOM 19 AUG 10
ApplyWET correction
For􀀃flexible􀀃temperature􀀃≤􀀃TVMC􀀃(54􀀃°),􀀃▹Tflex􀀃=..................................................................-1􀀃°C􀀃
Intermediate flex temperature..............................................................................................=53 °C
Associated speeds,
V1 = 145 kt - 2 = 143 kt
VR = 154 kt - 0 = 154 kt
V2 = 159 kt - 0 = 159 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............................................................................................ =53 °C
Check􀀃that􀀃OAT/TREF􀀃<􀀃flex􀀃temperature􀀃≤􀀃TMAXFLEX􀀃
No speed correction.
Takeoff speeds are V1 = 143 kt, VR = 154 kt, V2 = 159 kt
Takeoff Configuration : 1 + F
Tflex V1 VR V2
Chart temperature 54 145 154 159
FCOM correction(s)
Intermediate value 54 145 154 159
WET Correction -1 -2 0 0
Intermediate value 53 143 154 159
QNH Correction 0 0 0 0
Final value 53 143 154 159
CORRECTIONS PRODUCED ON THE RTOW CHART
Applicable to: ,
Example : Refer to PER-TOF-TOC-10-30 CHART LAYOUT.
A description of this correction is given: Refer to PER-TOF-TOC-16-20 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 selected configuration, wind and actual takeoff weight to read the 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.􀀃
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (WEIGHT ENTRY)
A330/A340 FLEET PER-TOF-TOC-20-50 P 6/10
FCOM 19 AUG 10
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.
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.
　
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