What is the maximum crosswind limit for RCC 4 (Good to Medium) conditions?

The maximum crosswind limit for Runway Condition Code (RCC) 4, which indicates good to medium runway conditions, is 20 knots. This limit is determined to ensure safe operations by accounting for the reduced friction available on the runway when it is in this condition. RCC 4 generally suggests that the runway surface is dry or has minor contamination, allowing for reasonable maneuverability, but still requires pilots to exercise caution due to the possibility of unexpected changes in handling characteristics, especially when crosswinds are present. Exceeding this limit in such conditions can significantly increase the risk of loss of control during takeoff or landing, which is why a defined maximum is critical for safety protocol.