What does "Light Gun Signals" refer to?

• A. Emergency light systems on aircraft
• B. Visual signals for communication with pilots
• C. Nighttime runway lights
• D. Aircraft landing guidance systems

Answer: (B)

"Light Gun Signals" refers to visual signals used for communication with pilots, especially when radio communication is not possible or when the pilot is unable to communicate with the control tower. These signals are typically emitted from a handheld light gun or a fixed light source that can send various colors and patterns to indicate instructions such as "clear for takeoff," "stop," or "return to the ground." Each color and pattern conveys specific commands, allowing air traffic controllers to effectively manage aircraft movements on the ground and in the air without verbal communication.

In this context, while emergency light systems, nighttime runway lights, and aircraft landing guidance systems all play important roles in aviation safety, they do not relate directly to the specific function of communicating instructions to pilots through visual signals.