Why are crosswind limits published for takeoff and landing?

Why are crosswind limits published for takeoff and landing?

• A. To standardize training.
• B. To limit flight time.
• C. To control cabin pressurization.
• D. To ensure controllability and safe lateral stability under braking and ground handling.

Answer: (D)

Crosswind limits for takeoff and landing are there to ensure the aircraft can stay controllable and maintain safe lateral stability when wind pushes the airplane across the runway during the critical start and stop phases. A crosswind creates a yawing moment and a tendency for the airplane to sideslip. The crew relies on rudder authority, aileron input, braking, and steering to keep the wings level and the aircraft on the centerline. If the crosswind component is beyond what the airplane and the crew can safely counter with available controls and tire friction, directional control can be lost, or the airplane may drift off the runway or require an aborted takeoff or rejected landing. So the limits are about safety of controllability and ground handling, not training standardization, flight time, or cabin pressurization.

Crosswind limits for takeoff and landing are there to ensure the aircraft can stay controllable and maintain safe lateral stability when wind pushes the airplane across the runway during the critical start and stop phases. A crosswind creates a yawing moment and a tendency for the airplane to sideslip. The crew relies on rudder authority, aileron input, braking, and steering to keep the wings level and the aircraft on the centerline. If the crosswind component is beyond what the airplane and the crew can safely counter with available controls and tire friction, directional control can be lost, or the airplane may drift off the runway or require an aborted takeoff or rejected landing. So the limits are about safety of controllability and ground handling, not training standardization, flight time, or cabin pressurization.