Hallo,
hier noch ein paar Gesichtspunkte von Airbus:
"V2: Takeoff Safety Speed
V2 is the minimum speed that needs to be maintained up to acceleration altitude, in the
event of an engine failure after V1. Flight at V2 ensures that the minimum required
climb gradient is achieved, and that the aircraft is controllable. V2 speed is always
greater than VMCA, and facilitates control of the aircraft in flight.
In an all-engines operative takeoff, V2+10 provides a better climb performance than V2
(Refer to Figure 5 below).
If one engine is lost before reaching V2, then the initial climb is flown at V2.
If thrust is lost at a speed between V2 and V2+10, then the current speed is maintained,
to ensure the most efficient climb speed.
It is not necessary to increase pitch, in order to reduce the speed to V2, when a higher
speed has already been reached."
Also: V2+10 gibt eine bessere Steigleistung, wenn alle Triebwerke laufen.
Grüße
Robert
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