What is the role of FLIR (Forward Looking Infrared) systems in avionics?

The role of FLIR (Forward Looking Infrared) systems in avionics is to deliver thermal images for navigation and surveillance. FLIR systems utilize infrared technology to detect heat emitted from objects, people, or vehicles. This capability allows pilots and operators to see in low visibility conditions such as darkness or adverse weather, where traditional optical systems may fall short. The thermal imagery generated by FLIR can be crucial for a variety of applications, including search and rescue, target acquisition, and obstacle detection during landing or flight operations.

In contrast, communication between aircraft relies on different technologies such as radios and data links, which are not the primary function of FLIR systems. While ground radar systems play a significant role in air traffic control, they operate on different principles and do not involve infrared imaging technology. Likewise, engine diagnostics are typically conducted using advanced sensors and data acquisition systems specifically designed for monitoring engine performance, rather than thermal imaging systems like FLIR. Thus, the primary and most relevant function of FLIR systems in avionics is indeed the provision of thermal images for navigation and surveillance.