What is the maximum approach speed for the CRJ 900 with flaps set to 30 degrees?

The maximum approach speed for the CRJ 900 with flaps set to 30 degrees is indeed 180 KIAS. This speed is essential for ensuring that the aircraft remains stable and controllable during the approach phase of flight while maximizing lift and minimizing drag. The selection of an appropriate approach speed is critical for safe operations, especially in varying conditions, such as turbulent air or reducing airspeed scenarios.

Flying below maximum approach speed can compromise the aircraft's performance, potentially resulting in an inability to maintain safe flight parameters, particularly during a go-around or an atypical maneuver. The specified maximum approach speed helps ensure that the pilots have sufficient control margins, and it corresponds to the aircraft's certified performance under specific configurations. Understanding these limitations reinforces safe flight practices and compliance with operational guidelines, ensuring a smooth landing and safe arrival.