LONDON, February 24, 2011

Northrop Grumman Corporation's (NYSE: NOC) European air traffic
management subsidiary Northrop Grumman Park Air Systems, has been awarded
follow-on contracts by Norwegian air navigation service provider Avinor for
the supply of satellite landing systems at three airport sites and a support
programme for 21 ground stations in Norway.

Northrop Grumman Park Air Systems developed and installed the
ground-based elements for the first satellite-based landing system (SLS) for
precision approach and landing at Brønnøysund Airport, Norway, which was
fully operational in October 2007. Special Category 1 (SCAT-1) airport
approach systems are currently installed at Brønnøysund, Hammerfest, Vadsø,
Namsos, Båtsfjord, and Svolvær airports and during 2011 will be installed at
airports at Førde, Berlevåg, Hasvik, Vardø, Stokmarknes and Mosjøen.

The company continues to be a major player in the field of landing
systems in particular satellite-based landing systems, through its
participation in the European SESAR programme.

"Being a partner in the SESAR programme allows us to be at the forefront
of developments in this area of technology," says Eldar Hauge, managing
director of Northrop Grumman Park Air Systems, Norway. "We are pleased to
continue our ongoing relationship with Avinor with new installations and
support contracts for SCAT-I. This important technology helps to improve
safety, particularly at the smaller regional airports in Norway and forms the
basis for our continuing work within SESAR and GBAS."

With a 50-year legacy in air traffic management systems ranging from
individual airport installations to countrywide, multiple-site turnkey
integrated system solutions, Northrop Grumman's state-of-the-art air traffic
management systems are operationally controlling air traffic in numerous
countries around the world including recent major programmes in: France,
Norway, Brazil, Qatar, Oman, Canada, India, Poland, UAE, U.S. and the U.K.,
in both civil and military applications.