A320机组操作手册FLIGHT CREW OPERATING MANUAL 7(74)

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Intermediate flex temperature....................................................................................................56 °C
Associated speeds,
V1 = 138 kt – 7 = 131 kt
VR = 150 kt – 0 = 150 kt
V2 = 151 kt – 0 = 151 kt
Since speed correction on V2 is 0, no V2 check against VMU limitation is necessary.
Apply QNH correction
Enq􀀃ekdw􀀃sdlodq􀁄stqd􀀃≥􀀃SULB􀀃􀀋4/􀀃°B(+􀀃ΔSekdw􀀃<􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀑􀀃–3 °C
Maximum flexible temperature.................................................................................................. 53 °C
Check that OAT/TREF < flex temperature ≤ TMAXFLEX
No speed correction.
Takeoff speeds are V1 = 131 kt, VR = 150 kt, V2 = 151 kt
Takeoff Configuration : 1 + F
Tflex V1 VR V2
Chart temperature 57 138 150 151
FCOM correction(s)
Intermediate value 57 138 150 151
WET Correction –1 –7 0 0
Intermediate value 56 131 150 151
QNH Correction –3 0 0 0
Final value 53 131 150 151
CORRECTIONS PRODUCED ON THE RTOW CHART
Applicable to:
A description of this correction is given on 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-icing. 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 :
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - FLEXIBLE TAKEOFF (WEIGHT ENTRY)
A318/A319/A320/A321 FLEET PER-TOF-TOC-20-50 P 10/14
FCOM 19 AUG 10
He􀀃sgd􀀃ekdwhakd􀀃sdlodq􀁄stqd􀀃hr􀀃kdrr􀀃sg􀁄m􀀃nq􀀃dpt􀁄k􀀃sn􀀃SULB􀀃􀀋khmd􀀃2(+􀀃􀁄ookx􀀃ΔSekdw􀀃bnqqdbshnm􀀃eqnl􀀃khmd􀀃0
􀁄mc􀀃􀁄ookx􀀃roddc􀀃bnqqdbshnmr􀀃􀀋ΔU0.ΔUQ.ΔU1(􀀃eqnl􀀃khmd􀀃1􀀑
Dkrd+􀀃􀀋ekdwhakd􀀃sdlodq􀁄stqd􀀃fqd􀁄sdq􀀃sg􀁄m􀀃SULB(+􀀃􀁄ookx􀀃ΔSekdw􀀃eqnl􀀃khmd􀀃2􀀃􀁄mc􀀃ΔU0.􀀃ΔUQ.􀀃ΔU1
corrections from line 4.
Check V2 against VMU limitation (Refer to PER-TOF-TOD-25 MINIMUM V2 LIMITED BY
VMU/VMCA (KT IAS)). If V2 is lower than V2 limited by VMU, flexible 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.
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-20-60 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 on Refer
to PER-TOF-TOC-16-30 RTOW EXAMPLE, apply the wet influence first.
‐ When the flexible temperature is higher than TVMC, it is allowed to limit the flexible
　
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