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decrement (°C) 7 6 6 8 6 5 8 6 5
MAX TO Weight
decrement (1 000 kg)
(1 000 lb)
1.7
3.8
1.5
3.4
1.4
3.1
2.1
4.7
1.6
3.6
1.2
2.7
2.2
4.9
1.7
3.8
1.4
3.1
V1 decrement (kt) 15 16 17 15 15 15 15 15 15
VR and V2
decrement (kt) 6 6 6 7 6 6 7 6 6
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
RUNWAY CONTAMINATION - TAKEOFF PERFORMANCE
A318/A319/A320/A321 FLEET PER-TOF-CTA-40 P 13/92
FCOM 19 AUG 10
ALL THRUST REVERSERS OPERATIVE (WITH CLEARWAY)
TAKEOFF CONFIGURATION CONF 1 + F CONF 2 CONF 3
RUNWAY LENGTH
(m)
(ft)
2 500
8 000
3 000
10 000
3 500
11 500and
above
2 000
6 500
2 000
8 000
3 000
10 000and
above
1 500
5 000
2 500
6 500
2 500
8 000and
above
FLEX TO Temperature
decrement (°C) 5 4 3 5 4 3 6 5 4
MAX TO Weight
decrement (1 000 kg)
(1 000 lb)
1.3
2.9
1.0
2.3
0.7
1.6
1.3
2.9
1.1
2.5
0.7
1.6
1.6
3.6
1.2
2.7
0.9
2.0
V1 decrement (kt) 10 11 12 10 10 10 10 9 10
VR and V2
decrement (kt) 4 4 3 4 4 3 5 4 4
TAKEOFF FROM A WET RUNWAY
Applicable to: MSN,
1. Determine the maximum takeoff weight or flexible temperature and associated speeds on dry
runway.
2. Two sets of tables are given depending on the use of thrust reversers and the presence of
clearway. Select the table to use as applicable to your case.
The runway length in the table corresponds to the available takeoff run (TORA).
3. Apply the corrections shown in the table to the maximum takeoff weight or flexible temperature
and associated speeds determined on dry runway.
4. Check that takeoff speeds are greater than the minimum values shown on the RTOW chart.
If one or more speeds are lower than these minimum values, apply the following procedure :
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
RUNWAY CONTAMINATION - TAKEOFF PERFORMANCE
A318/A319/A320/A321 FLEET PER-TOF-CTA-40 P 14/92
FCOM 19 AUG 10
‐ Actual TOW = maximum TOW
‐ If V1 is lower than the minimum V1 (V1 limited by VMCG), take this last value as V1 and
further decrease weight by 3 000 kg (6 600 lb) per knot difference between both values.
Check that VR and V2 are higher or equal to the minimum values.
‐ If VR or/and V2 falls below the minimum values, takeoff is not possible.
‐ Actual TOW lower than maximum TOW
‐ If V1 corresponding to actual TOW is lower than the minimum V1 (V1 limited by VMCG) :
‐ If maximum TOW has a V1 equal to or above minimum V1, retain minimum V1 as V1 and
decrease the flexible temperature by 4 °C per knot difference between them.
‐ In the rare case when the V1 corresponding to maximum TOW falls below the minimum
V1, decrease maximum TOW by 3 000 kg (6 600 lb) per knot difference between them.
Limit the actual TOW to the value found after this decrement. Take V1 equal to minimum
V1 and decrease the flexible temperature by 4 °C per knot difference between this last
value and the V1 corresponding to the actual TOW.
Check that VR and V2 are higher than or equal to the minimum values.
‐ If VR or V2 corresponding to actual TOW falls below the minimum values, and if VR and V2
corresponding to maximum TOW are above the minimum values, retain the minimum speed
value for VR and V2.
5. Check that V2 is above the minimum V2 value due to VMU (Refer to PER-TOF-TOD-25 MINIMUM
V2 LIMITED BY VMU/VMCA (KT IAS)).
6. Check that the corrected flexible temperature is higher than OAT and Tref.
Note: ‐ Do not extrapolate below the shortest runway length provided in the table.
‐ If no minimum speed value is available, use the conservative values provided on Refer to
PER-TOF-TOD-25 MINIMUM V2 LIMITED BY VMU/VMCA (KT IAS).
NO THRUST REVERSERS OPERATIVE (NO CLEARWAY)
TAKEOFF CONFIGURATION CONF 1 + F CONF 2 CONF 3
RUNWAY LENGTH
(m)
(ft)
2 500
8 000
3 000
10 000
3 500
11 500and
above
2 000
6 500
2 500
8 000
3 000
10 000and
above
1 750
5 750
2 000
6 500
2 500
8 000and
above
FLEX TO Temperature
decrement (°C) 8 3 2 10 7 6 9 5 5
MAX TO Weight
decrement (1 000 kg)
(1 000 lb)
2.4
5.3
0.9
2.0
0.8
1.8
2.8
6.2
2.2
4.9
2.2
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 7(101)
