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Date of the module
SR
Mach
Zp
Zp1
Zp4
Zp5
Zp3
Zp2
A project supported by AIRBUS and the CAAC
Date of the module
SR
Mach
Zp
Fixed Mach nb
Zp4 = Optimum
altitude to fly
at this Mach nb
(best SR for the
chosen Mach nb)
A project supported by AIRBUS and the CAAC
Date of the module
• Table of contents
• Flight operations duties
• European Applicable Regulation
• General
• General aircraft limitations
• Payload Range
• Operating limitations
• In flight performance
• One engine inoperative performance
• Flight planning
• weight and balance
A project supported by AIRBUS and the CAAC
Date of the module
1 - Take-off limitations
2 - Landing limitations
Table of contents
1 - Take-off limitations
A project supported by AIRBUS and the CAAC
Date of the module
2 - Take-off distances and lengths available
3 - Take-off flight path
4 - Take-off data influence
5 - Maximum allowed take-off weight calculation
6 - Wet and contaminated runway
7 - Flexible take-off
Table of Contents
1 - Take-off speeds
A project supported by AIRBUS and the CAAC
Date of the module
 General principle :
The most critical engine failure must be taken into
account to insure take off.
= engine whose failure has the
most critical consequences
on the control of the aircraft
A project supported by AIRBUS and the CAAC
Date of the module
 In case of engine failure during take off:
Abort take off
2 possibilities
Take off with one engine inop
In any case,
the chosen manoeoeuvre must be done
with safety margin
A project supported by AIRBUS and the CAAC
Date of the module
 The aim of take off :
 Provide lift to overcome weight
weight
1/2 lift 1/2 lift L = ½  Va
2 S CL
- Speed is necessary
A project supported by AIRBUS and the CAAC
Date of the module
 The speeds used for take off are :
INDICATED AIRSPEEDS (IAS)
Limiting speeds Operating speeds
A project supported by AIRBUS and the CAAC
Date of the module
 Limiting speeds : (FAR-JAR § 25.107)
VSR (VS1g) : stall speed
VMCG : minimum control speed on the ground
VMCA : minimum control speed in flight (airborne)
VMU : minimum unstick speed
A project supported by AIRBUS and the CAAC
Date of the module
 VMU : definition -(FAR-JAR § 25.107)
too important pitch angle : the rear of the aircraft
can hit the ground
is the lowest airspeed at and above which the aircraft can
safely lift off the ground, and continue the take off
without encountering critical conditions
insufficient lateral control : the wing tip or the
engine can hit the ground
A project supported by AIRBUS and the CAAC
Date of the module
VMU (AEO)  VMU (OEI)
 VMU : determination
W
FN
L

AEO
W
L

FN
OEI
A project supported by AIRBUS and the CAAC
Date of the module
A project supported by AIRBUS and the CAAC
Date of the module
 The speeds used for take off are :
INDICATED AIRSPEEDS (IAS)
Limiting speeds Operating speeds
A project supported by AIRBUS and the CAAC
Date of the module
 V1 Decision Speed
 VR Rotation Speed
 VLOF Lift Off Speed
 V2 Take Off Climb Speed
V1 VR VLOF
V2
35 ft
BR
TAKE OFF SPEEDS (FAR-JAR §
25.107)
A project supported by AIRBUS and the CAAC
Date of the module
 V1 : Take off decision speed chosen by the applicant :
BR V1 VR VLOF
V2
35 ft
TAKE OFF SPEEDS (FAR-JAR §
25.107)
Maximum speed at which it is possible
to interrupt the take off in case of failure
and also
Minimum speed at which it is possible to
follow on the take off in case of failure
A project supported by AIRBUS and the CAAC
Date of the module
 V1 : Take off decision speed chosen by the applicant:
BR V1 VR VLOF
V2
35 ft
TAKE OFF SPEEDS (FAR-JAR §
25.107)
V V1 Speed
If I am aware of a failure before V1
I can
... safely abort take off
A project supported by AIRBUS and the CAAC
Date of the module
 V1 : Take off decision speed chosen by the applicant:
BR V1 VR VLOF
V2
　
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