9.2 Takeoff Performance

V-Speeds Explained

Before every departure, three critical speeds must be calculated and inserted into the MCDU:

V1 – Decision Speed

• The maximum speed at which a rejected takeoff can be safely initiated
• After passing V1, the takeoff must be continued, even in case of failure

VR – Rotation Speed

• The speed at which the pilot initiates aircraft rotation
• Smooth and controlled pitch input is required

V2 – Takeoff Safety Speed

• Minimum safe climb speed after liftoff
• Ensures sufficient climb performance in case of engine failure

Operational Importance

Incorrect V-speeds can lead to:

• Unsafe takeoff performance
• Runway overruns
• Insufficient climb capability

Core Rule

“Takeoff performance is calculated – never estimated.”