Lesson 17

Question 1

What the five main causes of wake turbulence?

Answer 1

• Wing-tip vortices
• Rotor-tip vortices
• Jet engine thrust stream
• Rotor downwash
• Prop wash

Question 2

The strength of a wing-tip vortex is governed by three factors.

Answer 2

The strength of a wing-tip vortex is governed by the shape of the wings and the weight and
speed of the aircraft.

Question 3

Light aircraft are certified for a maximum take-off weight of what?

Answer 3

Light aircraft are certified for a maximum take-off weight of 7000 kg (15 500 lbs).

Question 4

Medium aircraft are certified for a maximum take-off weight of more than ______
but less than _______

Answer 4

Medium aircraft are certified for a maximum take-off weight of more than 7000 kg (15 500 lbs)
but less than 136 000 kg (300 000 lbs).

Question 5

Heavy aircraft are certified for a maximum take-off weight of _________ or more.

Answer 5

Heavy aircraft are certified for a maximum take-off weight of 136 000 kg (300 000 lbs) or more.

Question 6

What is an example of a super aircraft

Answer 6

Airbus A380 and Antonov AN225

Question 7

What are the four categories of weight classification for aircraft?

Answer 7

Light, Medium, Heavy and Super