VR cannot be lower than:

单选题 VR cannot be lower than:

A、 1.15 VS for turbo-prop with three or more engines

B、 1.2 VS for twin and three engine jet aircraft

C、 V1 and 105% of VMCA

D、 105% of V1 and VMCA

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单选题 The take-off safety speed V2min for turbo-propeller powered aeroplanes with more than three engines may not be less than:

A、1.15 Vs

B、1.3 Vs

C、1.2 Vs

D、1.2 Vs1

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单选题 The take-off safety speed V2 for two-engined or three-engined turbo propeller powered aeroplanes may not be less than:

A、1.3 Vs

B、1.15 Vs

C、1.2 Vs

D、1.15 Vs1

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单选题 Which of the following represents the maximum value for V1 assuming max tyre speed and max brake energy speed are not limited.

A、VMCA

B、VREF

C、V2

D、VR

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单选题 The rotation speed VR:

A、Must not be less than 1.1 VS1

B、Must not be less than VS1

C、Must not be less than 1.2 VMC

D、Must not be less than VMC

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单选题 The take-off safety speed V2MIN for turbo-propeller powered aeroplanes with more than three engines may not be less than:

A、VSR

B、1.08 VSR

C、1.13 VSR

D、1.2 VSR

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单选题 Given:

VS = Stalling speed

VMCA = Air minimum control speed

VMU = Minimum unstick speed

V1 = take-off decision speed

VR = Rotation speed

V2MIN = Minimum take-off safety speed

VLOF = Lift-off speed

The correct formula is:

A、

V2MIN < VMCA > VMU

B、

VR < VMCA < VLOF

C、

VS < VMCA < V2MIN

D、

VMU ≤ VMCA < V1

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单选题 The lowest take-off safety speed (V2min) is:

A、1.20 VSR for all aeroplanes

B、1.13 VSR for two and three-engine turbo-propeller and turbojet aeroplanes

C、1.20 VSR for all turbo-propeller aeroplanes

D、1.15 VSR for all turbojet and turbo-propeller aeroplanes

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单选题 What effect has a downhill slope on the take-off speeds? The slope

A、has no effect on the take-off speed V1.

B、decreases the take-off speed V1.

C、decreases the TAS for take-off.

D、increases the IAS for take-off.

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