Performance

Question 1

What is a Balanced field length

Answer 1

is when the TODR = ASDR

Question 2

Define

TODA

Answer 2

is the runway + the clearway

Question 3

Define

TODR

Answer 3

The distance required to accelerate to V1 – engine fail – continue climb to 35 ft

Question 4

Define

TORA

Answer 4

Runway distance

Question 5

Define

TORR

Answer 5

Is distance required to accelerate to V1 – engine fail – continue to midway between VLOF & 35ft point

Question 6

Define

LDR

Answer 6

• Calculated on speed at 50ft of 1.3Vs (i.e. Vref)
• Planned required landing field length must be equal to 1.67 x horizontal distance required to land and come to a complete stop, measured from height 50ft above landing surface

Question 7

Define

ASDA

Answer 7

Is the combined distance of runway and stop-way

Question 8

Define

stopway

Answer 8

Clear area immediately beyond runway & at least as wide capable of supporting aircraft for braking

Question 9

Define

clearway

Answer 9

Clearway is a clear area beyond the runway at which the aircraft may fly at less than 35feet but which may not be able to support the weight of the aircraft (e.g. water)

Question 10

Define
Screen Height (Turning Manoeuvre)

Answer 10

50ft

Question 11

Climb segment 1

Definition

Answer 11

35 ft to gear retracted

Question 12

Climb segment 1

Performance required

Answer 12

Positive rate of climb

Question 13

Climb segment 2

Definition

Answer 13

End of 1st segment to 400 ft or higher flap retract height; at V2

Question 14

Climb segment 2

Performance required

Answer 14

2.4% climb gradient required

Question 15

Climb segment 3

Definition

Answer 15

End of 2nd segment level acceleration to final climb speed

Question 16

Climb segment 3

Performance required

Answer 16

climb gradient capability of 1.2%

Question 17

Climb segment 4

Definition

Answer 17

End of 3rd segment to 1500 ft; at > 1.25 VS

Question 18

Climb segment 4

Performance required

Answer 18

Min climb gradient of 1.2%

Question 19

What is Vmcg?

Answer 19

Is the minimum speed on the ground during the take off run, at which it is possible to recover control of the aircraft with the use of primary aerodynamic controls and the takeoff can be continued safely, when the critical engine suddenly becomes inoperative, with the remaining engines at takeoff thrust.

Question 20

What is V1 and the relationship with other speeds?

Answer 20

The maximum speed in the takeoff at which the pilot must take the first action (e.g. Apply brakes, reduce thrust, deploy speed brakes) to stop the aircraft within the accelerate stop distance available; and
Also means the minimum speed in the takeoff, following the failure of the critical engine at VEF at which the pilot can continue the takeoff and achieve the required height above the takeoff surface within the distance available.
Must be:
Greater than or equal to VMCG
Less than or equal to VR

Question 21

Relationship between Vr and other speeds?

Answer 21

VR is never less than
V1
1.05 VMCA

Question 22

What is Vmca?

Answer 22

The minimum airspeed at which, when sudden and complete failure of the critical engine occurs at that speed, it is possible to recover the airplane with that engine still inoperative and maintain it in straight flight at that speed, either with zero yaw or with an angle of bank not in excess of 5°.
Must be greater than or equal to 1.2VS (with undercarriage retracted and flaps in takeoff position)

Question 23

Relationship V2 and other speeds?

Answer 23

The airspeed at which the aircraft complies with those handling criteria associated with the climb after takeoff and the target speed to be attained at the 35’ screen height, assuming recognition of an engine failure at or after V1 and used to the point where acceleration to flap retraction speed is initiated.
Must be:
Greater than or equal to 1.2 VS
Greater than or equal to 1.1 VMCA

Question 24

Define
Screen Height (Wet)

Answer 24

15ft