Wake turbulence

Question 1

What is wake turbulence?

Answer 1

Wake turbulence is the effect of the rotating air masses generated behind the wing tips of aircraft.

Question 2

What is wake vortex?

Answer 2

The shape and nature of the air mass created by wake turbulence.

Question 3

What are the 3 wake turbulence categories?

Answer 3

• Heavy (H)
• Medium (M)
• Light (L)

Question 4

What is the range of mass for the heavy wake turbulence category?

Answer 4

> 136,000kg

Question 5

What is the range of mass for the medium wake turbulence category?

Answer 5

7,000-136,000kg

Question 6

What is the range of mass for the light wake turbulence category?

Answer 6

<7,000Kg

Question 7

What are the two types of separation?

Answer 7

• Time based

- Distance based

Question 8

What’s the time based separation for a medium behind a heavy?

Answer 8

2 minutes

Question 9

What’s the time based separation for a light behind a medium or a heavy?

Answer 9

3 minutes

Question 10

How far apart must two runways be to not effect each others seperation?

Answer 10

760m

Question 11

What is the distance separation for a heavy behind a heavy?

Answer 11

4nm

Question 12

What is the distance separation for a medium behind a heavy?

Answer 12

5nm

Question 13

What is the distance separation for a light behind a heavy?

Answer 13

6nm

Question 14

What is the distance separation for a light behind a medium?

Answer 14

5nm

Question 15

List 2 times ATC does not have to apply separation minima?

Answer 15

• Arriving VFR.
• Arriving IFR flights executing a visual approach when told to maintain own separation (ATC must issue caution of possible wake turbulence.)