What is the maximum allowable x/wind component for takeoff and landing in poor conditions for the CRJ 900?

The maximum allowable crosswind component for takeoff and landing in poor conditions for the CRJ 900 is indeed 15 knots. This limitation is in place to ensure safe handling characteristics of the aircraft in adverse weather conditions. Exceeding this crosswind limit can lead to difficulties in maintaining control during the critical phases of flight, especially on the ground during takeoff and landing.

In situations where runway conditions are poor, such as wet or icy surfaces, the aircraft's response to crosswinds can be significantly affected, which is why it's crucial to adhere to these limitations. Proper training emphasizes the importance of being aware of these operational limits to prevent potential incidents that could arise from handling challenges in crosswind scenarios. Therefore, a limit of 15 knots provides a balance between operational flexibility and ensuring safety for pilots and passengers during takeoff and landing maneuvers.