What is the primary function of a GPS in aviation?

The primary function of a GPS (Global Positioning System) in aviation is to provide accurate positioning, navigation, and timing information. This technology enables pilots to determine their exact location anywhere on Earth, which is especially critical in navigating complex airspace and ensuring safe flight operations. The positioning aspect allows pilots to identify their current coordinates, while navigation provides route guidance from one waypoint to another. Timing information helps synchronize various systems and operations on board the aircraft, which is essential for maintaining safe separation from other aircraft and for compliance with air traffic control operations.

In contrast, while assisting in flight pattern design, regulating aircraft speed during descent, and controlling in-flight communication are important tasks in aviation, these do not represent the primary role of GPS technology. Instead, they rely on the accurate positioning and navigation capabilities that GPS provides. This makes the correct answer pivotal to understanding how pilots utilize GPS technology for safe and efficient navigation.