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Date of the module
Sustained parameters Chosen parameters
Landing data: Factors of influence
Zp and temperature
Wind
Headwind : 50%effect
Tailwind : 150%effect
A project supported by AIRBUS and the CAAC
Date of the module
Sustained parameters
Zp and temperature
Wind
Runway slope
neglected
Chosen parameters
Landing data: Factors of influence
A project supported by AIRBUS and the CAAC
Date of the module
Chosen parameters
Zp and temperature
Wind
Runway slope
Runway condition Wet or contaminated runways :
LD WET = 1.15 x LD DRY
But a shorter landing distance may be used
if AFM includes specific additional
information about landing distance on
wet or contaminated runways
Landing data: Factors of influence
Sustained parameters
A project supported by AIRBUS and the CAAC
Date of the module
Sustained parameters
Zp and temperature
Wind
Runway slope
Runway condition
Chosen parameters
Flaps
Landing data: Factors of influence
Flaps setting
Landing distance
Climb gradient
A project supported by AIRBUS and the CAAC
Date of the module
1 - Minimum speed
2 - Landing climb
3 - Landing distance
4 - Landing distance available
5 - Landing data
6 - Maximum allowed landing weight
7 - Overload landing
Table of Contents
A project supported by AIRBUS and the CAAC
Date of the module
The lower of :
Maximum landing design weight
Maximum landing weight due to performance
Runway limitation
Landing climb limitation
– approach configuration OEI
– landing configuration AEO
MAXIMUM ALLOWED LANDING WEIGHT (RLW)
A project supported by AIRBUS and the CAAC
Date of the module
1 - Minimum speed
2 - Landing climb
3 - Landing distance
4 - Landing distance available
5 - Landing data
6 - Maximum allowed landing weight
7 - Overload landing
Table of Contents
A project supported by AIRBUS and the CAAC
Date of the module
In case of emergency, it is possible to land with a weight >
MLDW :
the structural aeroplane resistance is protected for a
landing at MTODW with a rate = -360 ft/mn
But the minimum required climb gradients in case of goaround
must be complied with
FAR JAR § 25.1001
OVERLOAD LANDING FUEL JETTISONING
A project supported by AIRBUS and the CAAC
Date of the module
MTOW
15 mn emergency flight
Example : A300 B4
Zp = 2000ft
t°C = + 30°C
Jettison = 640 kg/mn
MTOW = 160.2 t
L. climb lim. = 151.1 t
160.2 - (15 x 0.64) = 150.6 < 151.1
The aeroplane must comply
with landing climb requirements
A project supported by AIRBUS and the CAAC
Date of the module
Regulatory Takeoff Weight Chart (RTOW Chart)
“Regulatory TakeOff Weight”
charts (RTOW). The charts must be generated for
each runway heading, and can beproduced for
different takeoff conditions at the convenience of the
applicant (temperature, wind, QNH, flap setting,
runway status, inoperative items).
They provide the:
• Maximum Takeoff Weight (MTOW)
• Takeoff speeds (V1,VR,V2)
• Limitation code
• Minimum and maximum acceleration heights.
A project supported by AIRBUS and the CAAC
Date of the module
Example: MTOW and speeds determination
an example of an A319
DATA
• Takeoff from Paris-Orly, Runway 08
• Slat/Flap configuration: 1+F
• OAT = 24ºC
• Wind = Calm
• QNH = 1013 hPa
• Air conditioning: Off
• Runway state: Dry
A project supported by AIRBUS and the CAAC
Date of the module
Example: MTOW and speeds determination
an example of an A319
RESULT
• MTOW = 73.6 tons
• V1 = 149 Kt, VR = 149 Kt, V2 = 153 Kt
• MTOW limited by: second segment and obstacle(2/4)
Note: In case of deviation from the chart
reference conditions (QNH, air conditioning…),
corrections have to be applied to the MTOW and
the speeds.
A project supported by AIRBUS and the CAAC
Date of the module
Example: Flexible Temperature and Speeds Determination
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flight operation 飛行運行概述(42)
