What happens to the prop RPM after 5 minutes of flying?

After five minutes of flying, the propeller RPM stabilizes at 2030 RPM due to the engine systems reaching an optimal operating condition. Initially, when an aircraft is started and undergoes its pre-flight processes, the engine and propeller may experience fluctuations in RPM. However, as the engine warms up and the various systems (like fuel flow, temperature, and pressure) settle into their designed operational ranges, the RPM tends to stabilize.

In this case, 2030 RPM indicates a steady state that the propeller achieves once it has ramped up to its operational performance level, allowing for efficient performance during flight. This stability is crucial for maintaining controlled and predictable flight characteristics, which is why this answer reflects the expected behavior of the propulsion system in a well-functioning aircraft.