V1 Vr V2

Question 1

V1 (decision speed) Vef ≥

Answer 1

Vmcg

Question 2

Minimum V1 (decision speed) = Vef PLUS acceleration during rec…

Answer 2

recognition time!

Question 3

V1 (decision speed) ≤

Answer 3

Vr

Question 4

V1 (decision speed) ≤

Answer 4

V1(mbe)

Question 5

Vr (rotation speed) ≥

Answer 5

V1

Question 6

Vr (rotation speed) ≥

Answer 6

1.05 Vmca

Question 7

Vlof

Answer 7

1.05 Vmu (1-inop)

Question 8

Vlof

Answer 8

1.1 vmu (all engines)

Question 9

Correct rotation speed is required to achieve V2 by….. _ _ ‘

Answer 9

35’

Question 10

TODR remains the same with early rotation if…

Answer 10

1-inop Vr - 5 kts

All engines Vr -10 kts

Question 11

V2 (initial climb out speed) ≥

Answer 11

1. 2 Vs

1. 1 Vmca

Question 12

V2 (initial climb out speed) is achieved by 35’ using the correct V?

Answer 12

Vr

Question 13

TAIL STRIKE are possible if take off attitudes higher than normal are reached before

Answer 13

lift off!

Question 14

TAIL STRIKE are usually caused by early rotation and/ a

Answer 14

RRR - rapid rotation rate > 3 degrees per second

Question 15

Flap retraction speeds ensures that

Answer 15

1.2 Vs protection is maintained during flap retraction.

Question 16

Gradient of Climb is the ratio of;

change of height/ …….

Answer 16

Change of Height/
Horizontal distance travelled

……. in the same time! (ROC/TAS =gradient%)

Question 17

Gross gradient refers to

Answer 17

Certification Flight test gradients

Question 18

Net gradients refer to

Answer 18

Gross gradients reduced by specific margin to allow for specified deterioration in performance and piloting technique.

Question 19

An RTO 2 seconds after V1 will result in an over run of the ASD at …_ _ - _ _… kt’s!

Answer 19

50 - 70kt’s!

Question 20

Take off is assumed to start from a …

Answer 20

complete stand still (static take off)

Question 21

Vmca must be at least _ _% above …

Answer 21

20% above the stall speed! (1.2Vs)

Question 22

Max Vlof speed is also the maximum t..

Answer 22

tyre speed! (high centrifugal forces)

Question 23

Vmbe depends on (TAP)

Answer 23

TOW
Ambient T’s, P’s, Wind ; &
Physical runway characteristics (slope)

Question 24

In case where clearway only is available the V1 selected must be lower than Balance field V1 so that

Answer 24

the 1-inop TOD is > ASD!

Question 25

In case where stopway only is available the V1 selected must be higher than Balance field V1 (upto Vr) to

Answer 25

make use of the stopway!

Question 26

TOD in the all engines case is not…

Answer 26

not affected by V1!

Question 27

(Wet runway)

If I-inop TODR is

Answer 27

Lower V1! –> consequently decreasing ASDA
The difference between ASDR and TODR = wet runway margin.
(runway length is the upper limit for this V1 reduction!)

Question 28

On a wet runway, lowering the V1 creates a safety margin by

Answer 28

decreasing ASDR!

Question 29

Screen height from wet rwy reduces from 35’ to 15’and use of reverse thrust is…

Answer 29

permitted!

Question 30

The highest climb gradients are required in the second t/o climb segment.

Gradient of climb increases with increasing…

Answer 30

climb speed (above V2!)

Question 31

Improved climb procedures allow increased TOW by increasing

Answer 31

V2 (‘V2 overspeed)

Question 32

V1 has no influence on second……

Answer 32

segment limitations!

Question 33

Vimd is minimum drag speed and also speed for -

Answer 33

LOW SFC
Max L/D ratio
Max Endurance (min FF); &
Max AOC (max excess TH)

Question 34

Max still air range occurs at 1.32 Vimd which is also best

Answer 34

TAS/DRAG ratio and Max CL/CD