What is the maximum crosswind component for takeoff on a runway contaminated with compacted snow?

The maximum crosswind component for takeoff on a runway contaminated with compacted snow is established based on safety margins and the aircraft's performance capabilities in adverse conditions. For the ERJ aircraft, the limitation factors include runway surface conditions that can significantly impact control during takeoff.

Compacted snow poses unique challenges for traction and directional control during the initial phases of takeoff. The aircraft's specifications and operational guidelines indicate that a maximum crosswind component of 20 knots is permissible under these conditions, allowing pilots enough margin to maintain control while still ensuring safety. This figure reflects operational best practices and the necessary caution required when maneuvering an aircraft on potentially slick surfaces.

Choosing a crosswind value lower than this would be overly conservative, while selecting a higher value could increase the risk of loss of control, particularly when facing significant runway contaminants like compacted snow. Hence, the established limit of 20 knots for takeoff in such conditions is both a practical and a safety-oriented guideline.