Cobham plc (Public - LON:COB) operates in four segments: Cobham Aerospace and Security, which provides avionics and communication equipment, law enforcement and national security solutions, and satellite communication equipment for land, sea and air applications; Cobham Defence Systems, which provides technology for network centric and intelligence operations, moving information around the digital battlefield with solutions for people and systems to communicate on land, sea and air; Cobham Mission Systems, which provides safety and survival systems for extreme environments, nose-to-tail refuelling systems and wing-tip to wing-tip mission systems for fast jets, transport aircraft and rotor craft, and Cobham Aviation Services, which delivers outsourced aviation services for military and civil customers through military training, special mission flight operations, and aircraft engineering. In July 2012, it sold its non-core emergency locator beacon business in the United States to J.F. Lehman & Company.