What is the maximum takeoff and landing altitude for the ERJ 170/175?

The maximum takeoff and landing altitude for the ERJ 170/175 is indeed 8,000 feet. This limitation is put in place to ensure that the aircraft can safely operate within its performance envelope during critical phases of flight. Operating above this altitude for takeoff and landing would impose additional challenges on aircraft performance, including engine thrust, climb rates, and stall margins due to thinner air at higher elevations. Maintaining operations within specified limitations is essential for ensuring safety, performance, and regulatory compliance. This altitude restriction aligns with the design and capabilities of the ERJ 170/175, which are optimized for operations up to this limit for takeoff and landing.