What is the operating altitude range for the ERJ-145?

The ERJ-145 is designed to operate efficiently within a relatively high altitude range, specifically between 10,000 and 37,000 feet. This altitude range allows the aircraft to optimize fuel efficiency and performance while avoiding much of the weather and traffic congestion prevalent at lower altitudes. Operating at these altitudes also ensures compliance with air traffic regulations, enabling safe operation along established flight routes used by commercial and regional airlines.

The choice of 10,000 to 37,000 feet encompasses the typical cruising altitude for regional jets, providing operators with the flexibility to maintain efficient flight profiles during various phases of flight, including climb, cruise, and descent. Additionally, air density at these altitudes impacts engine performance and aerodynamic efficiency, which is crucial for the ERJ-145's operational capabilities.