Infrared search and track
An infrared search and track (IRST) system is a method for detecting and tracking objects which give off infrared radiation, such as the infrared signatures of jet aircraft and helicopters.
An IRST sensor on a Sukhoi Su-35
An F-8E of VMF(AW)-235 at Da Nang, in April 1966 showing the IRST in front of the canopy.
AN/AAA-4 IRST under nose of F-4 Phantom
Optronique secteur frontal (IRST) of the Dassault Rafale, below the cockpit and to the side of the refueling boom. On the left, the main IR sensor (100 km range), on the right a TV/IR identification sensor with laser rangefinder (40 km range)
Forward-looking infrared (FLIR) cameras, typically used on military and civilian aircraft, use a thermographic camera that senses infrared radiation.
A Thales Damocles FLIR targeting pod
FLIR imagery from a U.S. Navy helicopter: Alleged drug traffickers are being arrested by Colombian naval forces.
A FLIR pod on a French Air Force helicopter
A FLIR system on a U.S. Air Force helicopter during search and rescue operation