What is the primary function of GPS in aviation navigation?

The primary function of GPS in aviation navigation is to provide accurate position, velocity, and time information. GPS, or Global Positioning System, utilizes a network of satellites to ascertain the precise location of an aircraft anywhere on the globe. This high level of accuracy is crucial for safe and efficient navigation, as it allows pilots and air traffic controllers to track aircraft movement, ensure safe separation, and facilitate navigation in various phases of flight.

While generating flight plans and monitoring weather conditions are important aspects of aviation operations, these tasks are typically supported by other systems and tools rather than being direct functions of GPS. Fuel consumption data could be computed using information from GPS, but it is not a primary function of the system itself, which focuses specifically on providing real-time positional information. Hence, the correct answer highlights the essential role GPS plays in ensuring flight safety and operational efficiency through precise navigation.