What is the maximum weight that the ERJ 170 can take off at?

The maximum takeoff weight (MTOW) of the ERJ 170 is established by the manufacturer and is crucial for ensuring safe flight operations within the aircraft's structural and performance limitations. The correct answer indicates that the maximum weight the ERJ 170 can safely take off at is 82,011 pounds. This weight limit is designed to ensure that the aircraft can achieve the necessary performance during takeoff, including adequate climb rates, control authority, and fuel efficiency.

Exceeding this weight can lead to a variety of issues, including impaired climb performance, longer takeoff distances, and potential stability problems. Therefore, knowing the maximum takeoff weight is essential for flight planning and ensuring compliance with operational regulations and safety guidelines. The other options do not reflect the ERJ 170's specified limitations and would lead to unsafe flight conditions if used as takeoff weights.