The control laws are scheduled based on which factors?

The control laws in aircraft are primarily adjusted based on factors that directly influence the aerodynamic properties and performance of the aircraft. The correct answer, which focuses on nacelle angle and airspeed, highlights significant aspects of flight control in certain aircraft configurations, particularly those with variable geometry systems, such as tilt-rotor or tilt-wing designs.

Nacelle angle refers to the position of the engines relative to the airflow, which can dramatically affect lift, drag, and overall performance in different flight phases. Airspeed is equally critical, as it influences aerodynamic forces acting on the aircraft. By scheduling control laws based on these two factors, the aircraft can optimize its performance for various flight conditions, ensuring stability and responsiveness during maneuvers.

Focusing on other choices, weight and speed or throttle position and load do attempt to capture essential performance factors but do not directly address the specific and nuanced adjustments needed in control laws dictated by nacelle angle and airspeed. Altitude and distance, while related to overall flight planning and navigation, are less immediately connected to the dynamic adjustments required for maintaining optimal control during flight.