Certified Flight Instructor - Flight Instructor Airplane Practice Exam

What is the possible impact on the rate of climb when one engine fails on a twin-engine airplane?

1. Rate of climb could reduce by 80 percent or more.

2. No change in performance.

3. Rate of climb reduces by 50 percent.

4. Rate of climb is eliminated.

The correct answer is: Rate of climb could reduce by 80 percent or more.

When one engine fails on a twin-engine airplane, the impact on the rate of climb can be severe due to the asymmetric thrust produced. The aircraft is designed to operate with two engines, which allows for a specific performance envelope. If one engine fails, the remaining engine must compensate for the lost thrust, which can lead to a significant reduction in climb performance. The statement that the rate of climb could reduce by 80 percent or more is accurate as it reflects the reality of operating under such a condition. Factors such as aircraft weight, altitude, and configuration also play a role, but the general expectation is that the aircraft will struggle to maintain altitude and climb efficiency. In some cases, climb rates may even become negative, meaning the airplane may descend rather than climb. The implications of one engine failure necessitate careful pilot management and an understanding of the aircraft's performance capabilities, making it critical that pilots are trained to recognize and respond to such scenarios effectively.