When pressing the flaps-up or flaps-down, the flaps don't immediately go up or down, they make a sound and move to the desired position which takes a some time. This time may not seem very long, but on multi-leveled flaps, if for example you went from level 4 to level 2 of flaps by pressing the flaps-up key twice, you would hear the sound for a sec or two. How does the game model this? ie As the flaps are retracting is it constantly updating the lift and drag factors to match the flaps appropriate position as it is retracting? Or is it modeled such that as the minute the button is pressed, it uses the the corresponding preset drag and lift factors for the selected setting regardless if the flaps are still moving to that setting?
I guess for the math guys, is
L being interpolated between the two preset values as the flaps are moving? (L from this equation).

Thanks