Which component is a typical feature of a Ground Proximity Warning System?

A Ground Proximity Warning System (GPWS) is designed to prevent controlled flight into terrain (CFIT) by providing alerts to the flight crew if the aircraft is in danger of colliding with the ground. The key component of a GPWS is its solid-state computer, which processes data from various inputs, such as altitude and flight characteristics, to determine the aircraft's position relative to the terrain.

The solid-state computer plays a crucial role in the system's functionality, as it evaluates multiple parameters in real time to predict potential hazards. It analyzes inputs from other aircraft sensors, such as altimeters and navigation systems, and uses algorithms to issue warnings if the aircraft is descending too quickly or is too close to the ground, providing pilots with critical information necessary for safe operation.

While radar altimeters, fuel monitoring systems, and advanced GPS modules are important components of various aircraft systems, they either do not directly relate to the functions of a GPWS or serve different purposes that are not specific to terrain awareness. The solid-state computer stands out as the fundamental element that enables the GPWS to fulfill its safety mission effectively.