Discussion
Arrange these events during an uncoordinated roll to the right:
1. The right aileron rises and the left aileron lowers
2. The left wing gains lift and more induced drag
3. A yawing moment to the left appears
4. The nose yaws away from the intended turn
5. The pilot applies right rudder to coordinate
Select the correct sequence.
Answer: A
Correct answer: 1, 2, 3, 4, 5
Each step follows from the one before. The pilot's input raises the right aileron and lowers the left, so the left wing gains lift - and with it induced drag.
The drag imbalance produces a yawing moment to the left, and the nose swings away from the intended right turn. That is adverse yaw, and the pilot's remedy is right rudder to coordinate. Note the order of steps 2 and 3: the drag difference is the cause and the yawing moment the effect, not the reverse.
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