What is the maximum speed for use of flaps?

The maximum speed for the use of flaps in the CRJ 900 is 250 knots. This limitation is in place to ensure the safe operation of the aircraft's flaps, which are designed to provide additional lift and increase the aircraft's drag during specific phases of flight, such as approaches and landings. Exceeding this speed can subject the flaps to aerodynamic loads beyond their designed limits, risking structural integrity and causing potential malfunctions.

It's important to adhere to these speed limitations to maintain safety and operational control, as flaps inappropriately deployed at higher speeds could also affect the aircraft's handling characteristics, potentially leading to difficult situations for the crew. Therefore, understanding and following the specified flap speed limitations is crucial for safe flying practices in the CRJ 900.