What is the maximum allowable tailwind component for takeoff in the CRJ 900?

The maximum allowable tailwind component for takeoff in the CRJ 900 is 10 knots. This limitation is crucial because exceeding this tailwind component can negatively impact the aircraft's performance during the takeoff phase. High tailwinds can lead to longer takeoff distances, reduced climb rates, and difficulties in achieving the necessary airspeed for a safe departure. By adhering to the specified limit, pilots ensure safe operations and compliance with operational standards set by the manufacturer and regulatory authorities. This limitation helps prevent performance degradation that may compromise safety during critical phases of flight.