What might happen to the propeller during an engine failure?

• A. It spins faster
• B. It feathers
• C. It stops completely
• D. It reverses direction

Answer: (B)

During an engine failure, particularly in multi-engine aircraft, the proper response regarding the propeller is for it to feather. Feathering is a process where the blades of the propeller are adjusted to a nearly flat position relative to the oncoming airflow. This action significantly reduces drag by minimizing the surface area of the blades that the wind impacts, allowing the aircraft to maintain better control and performance on the remaining operational engine(s).

When a propeller is feathered, it helps to prevent unnecessary loss of speed and aids in maintaining a stable flight profile, particularly important in emergency situations. It is a critical procedure taught in pilot training to enhance safety and control when an engine fails in flight. This action contrasts significantly with what would occur with other options, such as spinning faster, stopping completely, or reversing direction, which do not align with standard operating procedures for managing engine failures in multi-engine aircraft.