What is Vfe for flap setting 40?

Vfe, or the maximum flap extended speed, is a critical airspeed limitation that pilots need to observe during flight operations, especially when configuring the aircraft for landing or other maneuvers requiring flap deployment. For the CRJ 200, Vfe varies depending on the flap setting used.

When flaps are set to 40 degrees, Vfe is specifically defined as 170 KIAS. This speed ensures that the aircraft maintains safe handling characteristics with the flaps fully extended and helps avoid excessive aerodynamic loads. Adhering to this speed is crucial for safe flight operations, as exceeding Vfe can compromise the structural integrity of the flaps and the aircraft's overall performance.

The other choices provided do not match the documented limitation of 170 KIAS for a 40-degree flap setting. Knowing this speed allows pilots to plan and execute approach and landing phases effectively, ensuring optimal aircraft performance and safety during these critical flight periods.