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OPERATING MANUAL
PERFORMANCE
TAKEOFF
RUNWAY CONTAMINATION - OPERATIONAL CONDITIONS
A318/A319/A320/A321 FLEET PER-TOF-CTA-30 P 1/2
FCOM 19 AUG 10
OPERATIONAL CONDITIONS
Applicable to: ALL
Performance penalties for takeoff as published in this section are computed with the
following assumptions :
‐ The contaminant is in a layer of uniform depth and density over the entire length of the runway.
‐ Antiskid and spoilers are operative.
‐ The friction coefficient is based on studies and checked by actual tests.
‐ The screen height at the end of takeoff segment is 15 ft, not 35 ft.
In addition, for contaminated runways only :
‐ There is drag due to rolling resistance of the wheels.
‐ There is drag due to spray on the airframe and gears.
‐ Reverse thrust is used for the deceleration phase.
‐ Maximum thrust is used for takeoff.
Note: The net flight path clears obstacles by 15 ft instead of 35 ft.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
RUNWAY CONTAMINATION - OPERATIONAL CONDITIONS
Intentionally left blank
A318/A319/A320/A321 FLEET PER-TOF-CTA-30 P 2/2
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
RUNWAY CONTAMINATION - TAKEOFF PERFORMANCE
A318/A319/A320/A321 FLEET PER-TOF-CTA-40 P 1/92
FCOM 19 AUG 10
TAKEOFF PERFORMANCE
Applicable to:
,
,
MSN,
CAUTION The method is based on the use of the RTOW charts established at optimum V2/VS
and optimum V1/VR. The method should not be used with takeoff charts computed
for other conditions. All tables have been established for TOGA (and Flexible Takeoff
for wet runways). Do not use them for Derated thrust.
Correct the determined maximum takeoff weight on dry runway to take into account QNH and bleed
effects, then apply the corrections given on the following pages.
Note: 1. On contaminated runway, in some cases, no MTOW can be determined with this method
(box dashed below a given weight). A specific RTOW chart must then be computed.
2. The published corrections are valid for charts calculated with forward CG and basic CG.
TAKEOFF PERFORMANCE
Applicable to:
MSN,
CAUTION The method is based on the use of the RTOW charts established at optimum V2/VS
and optimum V1/VR. In addtition, when applying corrections for a wet runway, the
RTOW charts should also have been established with V1 min (minimum V1 of the
V1 range). The method should not be used with takeoff charts computed for other
conditions. All tables have been established for TOGA (and Flexible Takeoff for wet
runways). Do not use them for Derated thrust.
Correct the determined maximum takeoff weight on dry runway to take into account QNH and bleed
effects, then apply the corrections given on the following pages.
Note: 1. The results obtained with this method may be different from the influence given at the
bottom of the RTOW chart.
2. On contaminated runway, in some cases, no MTOW can be determined with this method
(box dashed below a given weight). A specific RTOW chart must then be computed.
3. The published corrections are valid for charts calculated with forward CG and basic CG
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
TAKEOFF
RUNWAY CONTAMINATION - TAKEOFF PERFORMANCE
A318/A319/A320/A321 FLEET PER-TOF-CTA-40 P 2/92
FCOM 19 AUG 10
TAKEOFF FROM A WET RUNWAY
Applicable to:
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 :
‐ 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
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 7(95)
