In 2001, the Boeing Company flight tested an advanced third-generation forward-looking infrared (FLIR) targeting pod on an F-15E. The test demonstrated the aircraft's capacity to accept a new system without time-consuming modifications. The F-15E Strike Eagle is the world's leading dual-role fighter, performing air-to-ground and air-to-air missions with unmatched success. An array of avionics and electronics systems gives the F-15E the capability to fight at low altitude during day or night and in inclement weather, and to perform its primary function as an air-to-ground attack aircraft.