What’s Vr, Vmu, Vlof? (Speed)

[Ref CAD 385]

What’s Vr?

Vr is the Rotation Speed

Vr – the speed at which the pilot initiates action to raise the nose gear off the ground, during the acceleration to V2 at a height of 35 ft.


What’s Vmu?

Minimum Unstick Speed, Vmu – the calibrated airspeed at and above which the aeroplane can safely lift off the ground, and continue the take-off.


What’s Vlof?

Vlof is the calibrated airspeed at which the aeroplane first becomes airborne.




Source: http://www.aerospaceweb.org/question/performance/q0088.shtml
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# What’s V1?

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