What is the purpose of GPS in IFR operations?

The purpose of GPS in IFR operations is primarily to provide precise positional information for navigation. In instrument flying, where visual references are limited or non-existent, having exact location data is crucial for maintaining situational awareness and ensuring safe navigation. GPS systems offer accurate readings of the aircraft's position, allowing pilots to navigate along predetermined flight paths, including those dictated by air traffic control and published procedures. This precision supports the overall safety and efficiency of instrument flight and enhances the pilot’s ability to execute approaches and landings in various weather conditions.

The other options, while pertinent to aviation, do not encapsulate the primary role of GPS in IFR operations. While GPS can complement various systems, it does not primarily function as a backup for mechanical instruments, nor is it exclusively responsible for enabling autopilot systems. Additionally, it does not play a role in providing information regarding cloud cover. The core utility of GPS is its capability to deliver accurate navigational data, which is essential for IFR operations.