
The Navy on Friday awarded Boeing [BA] a $152.5 million contract to design, develop, integrate, and test the Infrared Search and Track System (IRST) Block II.IRST Block II is a Phase II engineering change as a replacement for the IRST Block I to support F/A-18 E/F aircraft. The IRST system is a passive infrared sensor that has a longer range than radar, although it also has to contend with weather and atmospheric interference.The Block II uses an upgraded Lockheed Martin…