What is the primary purpose of engine synchronization?

What is the primary purpose of engine synchronization?

• A. Increase fuel flow
• B. Improve engine response time
• C. Reduce noise level and enhance passenger comfort.
• D. Reduce maintenance requirements

Answer: (C)

Engine synchronization keeps the two engines running at nearly the same speed, so their thrust forces stay balanced. When one engine runs faster or slower, you get vibration and a small yaw as the aircraft feels an unequal push. By tying the engines together and maintaining matched RPMs, the propulsion is more even, which smooths power delivery and reduces cabin vibration and noise. That quieter, smoother ride is the main benefit for passengers. It isn’t primarily about increasing fuel flow, speeding up throttle response, or reducing maintenance needs.

Engine synchronization keeps the two engines running at nearly the same speed, so their thrust forces stay balanced. When one engine runs faster or slower, you get vibration and a small yaw as the aircraft feels an unequal push. By tying the engines together and maintaining matched RPMs, the propulsion is more even, which smooths power delivery and reduces cabin vibration and noise. That quieter, smoother ride is the main benefit for passengers. It isn’t primarily about increasing fuel flow, speeding up throttle response, or reducing maintenance needs.