What is the maximum operating altitude for the ERJ 170/175?

The maximum operating altitude for the ERJ 170/175 is 41,000 feet. This altitude limit is established to ensure that the aircraft operates within safe structural and performance parameters. It allows the aircraft to maintain sufficient engine performance and cabin pressurization while accommodating for air traffic control requirements.

Flying at this altitude optimizes fuel efficiency and overall performance, while providing a safety margin above terrain and obstacles. Operating at the maximum altitude also provides better weather avoidance and can improve the passenger experience by delivering a smoother ride, away from turbulence present at lower altitudes.

While the other altitude options might seem plausible based on other aircraft specifications, they either exceed the limits set for the ERJ 170/175 or fall short of its capabilities, thus reinforcing why 41,000 feet is the correct choice.