Aerodynamics

Question 1

At constant KIAS, as T decreases what happens to MACH number?

Answer 1

Increases

Question 2

What is critical Mach?

Answer 2

When any point on the body reaches Mach 1.0

Question 3

What is Mcrd (drag divergence Mach number)

Answer 3

The Mach number at which there is a sharp increase in drag

Question 4

What is another term for drag divergence?

Answer 4

Drag rise

Question 5

What can Mach buffet lead to?

Answer 5

Mach Tuck

Question 6

Why does center of pressure move aft in super sonic flight?

Answer 6

Shock wave formation

Question 7

What are the main causes of Mach Tuck?

Answer 7

Flow separation

Movement of center of pressure

Question 8

Where does a swept wing stall first?

Answer 8

At the tip

Question 9

What are the benefits of a swept wing?

Answer 9

Increases critical Mach number

Delays onset of compressibility

Question 10

How do you recover from Dutch roll?

Answer 10

Aileron control only

Question 11

What factors can lead to high altitude stall?

Answer 11

Weather
Insufficient pilot monitoring
Degraded aircraft performance

Question 12

What is the difference between low and high speed buffet at high altitude?

Answer 12

A few knots