The AN/AAQ-26 Infrared Detecting Set employs off-the-shelf avionics.
The AAQ-26 infrared detecting set is a high-performance multipurpose thermal imaging sensor. It provides long-range navigation, surveillance, and fire control capabilities. The AAQ-26 features a second-generation focal plane array, electronic image stabilization, local area processing, and an adaptable interface. Additional features include a dual mode video tracker, a 1553 data bus or discrete controls, and multiple fields of view.
The system is deployed on the AC-130H and the AC-130U gunships, and is designed to support a wide variety of platforms and missions.