What is the thrust rating for the CRJ 900 when APR is engaged?

The thrust rating for the CRJ 900 when the Automatic Performance Reserve (APR) is engaged is indeed 13600 lbs. APR is a system designed to provide additional thrust when necessary, such as during takeoff or in situations requiring increased engine power. In the case of the CRJ 900, the specific thrust rating of 13600 lbs under APR conditions allows the aircraft to ensure optimal performance, especially in terms of climb rates and handling characteristics during critical phases of flight. This thrust rating is carefully calibrated to match the aircraft's design and operational requirements, balancing engine capability with safety and efficiency.