The UK has what is known as the "Block III" version of the Tomahawk, manufactured by Hughes - now part of Raytheon Missile Systems, based in Tucson, Arizona.
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Boeing competes mostly with Lockheed Martin, Northrop Grumman, BAE Systems and Raytheon.
The weapons package includes antimissile systems sold by Raytheon Co.
Both radar systems were developed and built by Raytheon, providing high-resolution tracking and discrimination of all ballistic threats.
Teams led by BAE Systems, ITT Defense, Northrop Grumman and Raytheon are all chasing the opportunity.
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Raytheon has a sprawling campus near Newport that develops electronic systems for U.S. warships, and as you travel I-95 through the state capital of Providence you will see the high-rise headquarters of military supplier Textron looming above Westminster Street near the highway.
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That makes Raytheon, which produces missiles, defence electronics, radar and ground surveillance systems, especially attractive.
This has resulted in a four-way rivalry to develop the next-generation system between industry teams led by BAE Systems, Exelis (formerly ITT Defense), Northrop Grumman and Raytheon.
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Raytheon (nyse: RTN - news - people ) will handle systems integration.
Raytheon ( RTN - news - people ) and Hawker Beechcraft for weapons systems that included Hawk and Patriot missiles.
The most aggressive players at present seem to be Raytheon, Science Applications International, General Dynamics and Lockheed Martin, but other players like BAE Systems and Boeing are rapidly bulking up.
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