What is the maximum allowable altitude for the CRJ-900?

The maximum allowable altitude for the CRJ-900 is 41,000 feet. This altitude is determined by the aircraft's design specifications and performance capabilities. The CRJ-900 is equipped with systems and engines that are optimized to operate effectively and safely at this maximum altitude, providing enough cabin pressure and engine performance.

Operating at this altitude also allows the aircraft to take advantage of stronger jet streams for fuel efficiency, which can be a significant factor in optimizing fuel consumption during flights. Additionally, maintaining operations within certified altitude limits ensures compliance with aviation regulations and safety standards, which are critical for safe and efficient air travel.

The other altitude choices exceed what the CRJ-900 is designed to handle operationally, and typically, aircraft are certified for specific maximum altitudes based on structural integrity, capabilities, and the overall safety of flight operations.