How does accelerated slipstream benefit an aircraft during engine failure?

Accelerated slipstream refers to the increased airflow generated by the functioning engine, which can have a significant impact on the aerodynamics of an aircraft, particularly during engine failure. When an aircraft experiences an engine failure, the remaining operational engine creates a stronger airflow over the wing on the side with the functioning engine. This additional airflow results in increased lift on that side of the aircraft.

By enhancing lift on the side with the functioning engine, the aircraft can maintain better control and stability in flight. This is crucial since the aircraft may be subject to yaw or roll towards the failed engine due to a loss of thrust. The accelerated slipstream helps counteract these forces, allowing the pilot to manage the aircraft's attitude and maintain a more stable flight path.

While other options, like reducing drag or enhancing landing capabilities, are relevant to aircraft performance in various contexts, the primary and most immediate benefit of accelerated slipstream during engine failure is the increased lift, which directly aids in maintaining controlled flight.