Vspeeds

Question 1

Vs1

Answer 1

The lower ends of the green arc is the stalling speed with wing flaps retracted

Question 2

Vs0

Answer 2

The lower ends of the white arc is the stalling speed with wing flaps fully extended

Question 3

VNO

Answer 3

The upper end of the green arc is the maximum speed for normal operations

Question 4

VFE

Answer 4

The upper end of the white arc is the maximum flap extended speed

Question 5

VNE

Answer 5

The red line is the never exceed speed

Question 6

V1

Answer 6

Engine failure recognition speed or decision speed.
or minimum speed in the take-off

Question 7

V2

Answer 7

Take-off safety speed.

Question 8

V3

Answer 8

Flap retraction speed.

Question 9

V4

Answer 9

Steady initial climb speed

Question 10

VA

Answer 10

Design manoeuvring speed.

Question 11

Vat

Answer 11

Indicated airspeed at threshold

Question 12

VB

Answer 12

Design speed for maximum gust intensity.

Question 13

Vc

Answer 13

Design cruise speed

Question 14

Vcef

Answer 14

generally used in documentation of military aircraft performance as V1

Question 15

VD

Answer 15

Design diving speed.

Question 16

VDF

Answer 16

Demonstrated flight diving speed.

Question 17

VEF

Answer 17

The speed at which the Critical engine is assumed to fail during take-off.

Question 18

VF

Answer 18

Designed flap speed.

Question 19

VFC

Answer 19

Maximum speed for stability characteristics.

Question 20

VFE

Answer 20

Maximum flap extended speed. ( upper end of white arc )

Question 21

VFTO

Answer 21

Final take-off speed

Question 22

VH

Answer 22

Maximum speed in level flight at maximum continuous power.

Question 23

VLE

Answer 23

Maximum landing gear extended speed.

Question 24

VLO

Answer 24

Maximum landing gear operating speed

Question 25

VLOF

Answer 25

Lift-off speed.

Question 26

VMC

Answer 26

Minimum control speed

Question 27

VMCA

Answer 27

Minimum control speed in the air (or airborne)

Question 28

VMCG

Answer 28

Minimum control speed on the ground

Question 29

VMCL

Answer 29

Minimum control speed in the landing

Question 30

VMO

Answer 30

Maximum operating limit speed.

Question 30

VMU

Answer 30

Minimum unstick speed.

Question 31

VNE

Answer 31

Never exceed speed.

Question 32

VNO

Answer 32

Maximum structural cruising speed or maximum speed for normal operations.

Question 33

VO

Answer 33

Maximum operating manoeuvring speed.

Question 34

VR

Answer 34

Rotation speed.

Question 35

Vrot

Answer 35

Used instead of VR (in discussions of the take-off performance of military aircraft) to denote rotation speed in conjunction with the term VRef (refusal speed).

Question 36

VRef

Answer 36

Landing reference speed or threshold crossing speed.

Question 37

VS

Answer 37

Stall speed or minimum steady flight speed for which the aircraft is still controllable

Question 38

VS0

Answer 38

Stall speed or minimum flight speed in landing configuration.

Question 39

VS1

Answer 39

Stall speed or minimum steady flight speed for which the aircraft is still controllable in a specific configuration.

Question 40

VSR

Answer 40

Reference stall speed.

Question 41

VSR0

Answer 41

Reference stall speed in landing configuration.

Question 42

VSR1

Answer 42

Reference stall speed in a specific configuration.

Question 43

VSW

Answer 43

Speed at which the stall warning will occur.

Question 44

VTOSS

Answer 44

Category A rotorcraft take-off safety speed.

Question 45

VX

Answer 45

Speed that will allow for best angle of climb.

Question 46

VY

Answer 46

Speed that will allow for the best rate of climb.

Question 47

V1

Answer 47

Engine failure recognition speed or decision speed.