Which instruments are considered basic weather equipment for terminal operations?

• A. Wind indicators and Altimeters
• B. Thermometers and Barometers
• C. Anemometers and Hygrometers
• D. Radar and Satellite Systems

Answer: (A)

The correct answer identifies wind indicators and altimeters as basic weather equipment essential for terminal operations. Wind indicators provide crucial real-time data about wind direction and speed, which directly influence aircraft movements, such as takeoffs and landings. Knowledge of wind conditions helps controllers ensure aircraft are operated safely and efficiently during these critical phases.

Altimeters play a vital role in measuring the altitude of an aircraft above sea level. This information is crucial for maintaining safe separation between aircraft in various stages of flight and ensuring compliance with altitude restrictions during takeoff and landing. By providing accurate altitude readings, altimeters contribute significantly to air traffic management and safety at airports.

While the other options contain instruments that are important for specific weather-related measurements, they do not encompass the fundamental tools necessary for immediate decision-making in terminal operations. Thermometers and barometers, for example, help in assessing temperature and atmospheric pressure but are not as directly related to flight safety and control as wind indicators and altimeters. Anemometers and hygrometers measure wind speed and humidity, respectively, yet they are not routinely used in the immediate decision-making process at terminal operations. Radar and satellite systems are sophisticated technologies useful for broader weather analysis but are typically not classified as basic tools for terminal operations.