3 Control reversal

Question 1

What is the condition for control reversal?

Answer 1

Roll rate / rotation angle = 0

Question 2

What is the base equation for infinitesimal work done for control reversal questions?

Answer 2

Question 3

What two terms do we need to focus on for Control reversal?
And which other term is there but cancels out later?

Answer 3

Theta(T) and roll angle

Theta(0) cancels out later

Question 4

What would the incremental work done for an aircraft with rigid wings, for roll?

Answer 4

Question 5

What is dL for control reversal questions?

Answer 5

Question 6

What is dM for control reversal questions?

Answer 6

Question 7

What is the new theta equal for control reversal questions?

Answer 7

Question 8

What’s the Cl for control reversal?
(For a symmetric aerofoil)

Answer 8

Question 9

What can you cancel from control reversal questions when doing the work done?

Answer 9

Theta (zero) because it would cancel out later.

(I think that dM only comes into affect if the wings are not rigid??)

Question 10

What is this?

Answer 10

Gust velocity