Which controls are used to toggle the taxi and landing lights?

• A. Collective switches
• B. Pedal switches
• C. Throttle levers
• D. Instrument panel buttons

Answer: (A)

The correct answer pertains to the collective switches that control the taxi and landing lights on the TH-73 helicopter. Collective switches are typically positioned within easy reach of the pilot and are used to alter the flight controls and systems as necessary during various phases of flight and ground operations.

In the case of taxi and landing lights, these switches allow the pilot to activate or deactivate the lights as required for visibility during ground movement and landing operations. Using collective switches simplifies the process, ensuring that the pilot can maintain control and focus on flying the aircraft while still operating essential lighting systems.

Other control types, such as pedal switches or throttle levers, serve different functions that do not involve the operation of taxi and landing lights. Pedal switches are generally associated with antitorque and yaw control, while throttle levers are focused on engine power management; thus, they do not provide the function required for toggling these specific lights. Instrument panel buttons could theoretically be used for light controls, but in this case, collective switches are the standard and more practical means for the pilot to manage lighting systems effectively.