For the second in command (SIC), what is the maximum allowable crosswind component on a dry runway?

For the second in command (SIC) operating the CRJ 900, the maximum allowable crosswind component on a dry runway is indeed 15 knots. This limitation is derived from operational safety guidelines that help ensure safe aircraft handling during landing and takeoff in crosswind conditions. The 15-knot limit is established to maintain control of the aircraft and ensure that the SIC can effectively manage the aircraft's response to the wind without exceeding their training and certification parameters.

Understanding this limitation is critical, as exceeding the maximum crosswind component could increase the risk of loss of control during crucial phases of flight, particularly during landing. Therefore, this limitation helps the SIC operate within a safe margin, providing an essential operational standard.