Question

The control surface associated with engine inoperative condition is

• A. rudder
• B. elevator
• C. fuselage
• D. aileron

Hint:

Rudder controls yaw and is essential in asymmetric flight scenarios like engine failure.

Answer 1

The Correct Option is A

In aerospace engineering, when an aircraft experiences an engine inoperative condition, it typically creates an asymmetrical thrust condition. This imbalance causes the aircraft to yaw towards the side of the inoperative engine. To counteract this yaw, pilots use certain control surfaces. Let us analyze the options:

• Rudder: The rudder controls the yaw motion of the aircraft by generating a force to turn the nose left or right. In the case of an engine failure, it is primarily the rudder that is used to counteract the yawing motion caused by the asymmetrical thrust.
  Conclusion: Rudder is the correct control surface used during an engine inoperative condition.
• Elevator: This controls the pitch of the aircraft and is not directly involved in correcting asymmetrical yaw caused by engine failure.
• Fuselage: The fuselage is the aircraft's main body and is not a control surface.
• Aileron: Ailerons control the aircraft's roll and are not the primary control for adjusting yaw caused by an engine inoperative condition.

Therefore, the correct control surface for managing flight during an engine inoperative condition is the rudder.