The Boeing F/A-18E/F Super Hornet Infrared Search and Track (IRST) System is to move to the next phase of development, which is the Engineering and Manufacturing Development phase, as it has acquired a Milestone B Acquisition Decision Memorandum from the US Navy on July 13, 2011.
The IRST system is a long-range passive sensor which seeks and identifies IR emissions. This sensing system can monitor and track multiple targets at the same time and also offer a very efficient air-to-air targeting feature even while facing advanced threats with its radar-jamming technology.
According to Tim Adrian, who is the Program Manager for Boeing F/A-18E/F IRST Program, the program would extend the capability of the Super Hornet to identify and target effectively in several mission profiles such as environments not having electronic access. This system includes a balanced approach to encounter lethality and survivability by utilizing a number of onboard sensors which would give aircrews unparalleled situational awareness.
IRST would ensure that the Super Hornet would persist in overcoming every known and unknown threat in the future. The subcontractors include Lockheed Martin who would manufacture the IRST sensor, Meggitt Defense Systems for the cooling subassembly of the unit and GE Aviation for the fuel tank assembly which contains the sensor.
The Boeing Super Hornet being a multipurpose aircraft, would be able to carry out any mission in the tactical spectrum such as fighter escort, suppression of enemy air defenses, day/night strike with precision-guided weapons, air superiority, close air support, tanker, forward air control, reconnaissance, and maritime strike missions.
Source: http://boeing.mediaroom.com