A crosswind takeoff occurs when an aircraft takes off while facing wind that is not aligned with the runway. This situation requires pilots to adjust their control inputs to maintain the aircraft's heading and ensure a safe ascent. The wind can push the plane sideways, making it essential for pilots to use specific techniques to counteract this force. During a crosswind takeoff, pilots typically use a combination of aileron and rudder inputs. The ailerons help keep the wings level against the wind, while the rudder helps maintain directional control. Proper technique is crucial for a successful takeoff in these challenging conditions.