What is the maximum operating airspeed (Vmo) for the CRJ 200 below 10,000 feet?

The maximum operating airspeed, or Vmo, for the CRJ 200 below 10,000 feet is indeed 250 KIAS. This limitation is set to ensure the structural integrity and aerodynamic performance of the aircraft at lower altitudes. Exceeding this speed can result in increased airframe stress and reduced control effectiveness, potentially leading to control issues or structural failures. Operating within this speed limit is essential for maintaining safe flight, particularly during critical phases such as takeoff and landing, where control environment and aircraft performance need to be maximally predictable and reliable. Therefore, understanding and adhering to Vmo is key for safe aircraft operation.