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chart and that V2 is higher than the VMU limited speed (Refer to PER-TOF-TOD-25 MINIMUM
V2 LIMITED BY VMU/VMCA (KT IAS)).
If OAT is higher than TVMC (line 3) or if the above speed check is not fulfilled, apply ◂W
correction from line 3 and ◂V1/◂VR/◂V2 corrections from line 4. No speed check is required.
Note: ‐ QNH correction is given for ± 10 hPa. It is allowed to extrapolate linearly for greater QNH
deviation.
‐ When using a takeoff chart with failure cases, it is not allowed to combine two failure
cases.
‐ Corrections from the chart must be applied from top to bottom, i.e. in the RTOW (Refer to
PER-TOF-TOC-16-30 RTOW EXAMPLE), apply the wet correction first.
‐ If asterisk or dotted lines appear in the correction boxes, refer to more conservative
corrections provided in the FCOM.
‐ No speed check is required for the first correction. However, if the first influence
correction follows a conservative FCOM correction, a speed check is required.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - MTOW CALCULATION (WEIGHT ENTRY)
A318/A319/A320/A321 FLEET PER-TOF-TOC-18-10 P 15/26
FCOM 19 AUG 10
EXAMPLE B
DATA : OAT = 45 °C
Head wind = 10 kt
QNH = 998 hPa
WET runway
Use the chart Refer to PER-TOF-TOC-16-30 RTOW EXAMPLE.
• Enter the 10 kt head wind column CONF 1+F, to read for 45 °C
max TO weight (1 000 kg).......................................................................................................80.6
• Enter the 10 kt head wind column CONF 2, to read for 45 °C
max TO weight (1 000 kg).......................................................................................................80.3
• Retain CONF 1+F for takeoff
• Read associated speeds as V1 = 155 kt, VR = 156 kt, V2 = 158 kt
• Apply WET correction
For OAT < TVMC (69 °C), ◂W =........................................................................................... – 0.7
Intermediate weight (1 000 kg)................................................................................................79.9
Associated speeds,
V1 = 155 kt – 8 = 147 kt
VR = 156 kt – 2 = 154 kt
V2 = 158 kt – 2 = 156 kt
(No speed check required for first correction)
• Apply QNH correction
For OAT < TVMC (61 °C), ◂W = – 0.7 × 15/10 =.....................................................................– 1
Maximum permissible takeoff weight (1 000 kg)..................................................................... 78.9
Associated speeds,
V1 = 147 kt – 1 × 15/10 = 145 kt
VR = 154 kt – 1 × 15/10 = 153 kt
V2 = 156 kt – 1 × 15/10 = 155 kt
• Check that the speeds are higher than minimum speeds from the chart and from VMU table.
Takeoff Configuration : 1+F
TOW V1 VR V2
TOW (RTOW) 80.6 155 156 158
FCOM correction(s)
Intermediate value 80.6 155 156 158
WET Correction - 0.7 -8 -2 -2
Intermediate value 79.9 147 154 156
QNH Correction - 1 -2 -1 -1
Final value 78.9 145 153 155
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
TAKEOFF CHARTS - MTOW CALCULATION (WEIGHT ENTRY)
A318/A319/A320/A321 FLEET PER-TOF-TOC-18-10 P 16/26
FCOM 19 AUG 10
COMBINING CORRECTIONS FROM FCOM AND CHART
Applicable to: ALL
Proceed as follows :
1. Determine the maximum takeoff weight by entering the chart with selected configuration, OAT and
wind.
2. Apply corrections from FCOM to determine an intermediate weight. Interpolate associated speeds
for intermediate weight in the same column (same wind and configuration).
3. Apply corrections from RTOW chart as explained above.
EXAMPLE C
Applicable to:
DATA : OAT = 25 °C
Head Wind = 10 kt
Air conditioning ON
QNH = 998 hPa
WET runway
1. Use the chart Refer to PER-TOF-TOC-16-30 RTOW EXAMPLE.
Enter the 10 kt head wind column CONF 1+F, to read for 25 °C
Max TO weight (1 000 kg) air conditioning OFF = 76.2 + 0.4 × 2 + 0.04 × 11 = 77.4
Enter the 10 kt head wind column CONF 2, to read for 25 °C
Max TO weight (1 000 kg) air conditioning OFF = 76.0 + 0.41 × 1 + 0.03 × 11 = 76.7
Retain CONF 1+F for takeoff configuration.
2. First, apply the correction Refer to PER-TOF-TOD-24 EFFECT OF QNH AND BLEEDS.
Max TO weight (1 000 kg) a ir conditioning OFF........................................................................77.4
Air conditioning correction.......................................................................................................... – 2.0
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 7(61)
