Era Corp., a manufacturer of surveillance and flight tracking technologies, will be acquired by SRA International, Fairfax, Va., the companies announced Wednesday. Financial terms of the acquisition were not disclosed. The transaction is expected to close at the end of June. "Era is a perfect fit for SRA," said SRA President and CEO Stan Sloane. "Era has established a great track record of winning new business and exceeding customer expectations, and we anticipate that the air surveillance market will continue to offer abundant opportunities for growth as traditional ground-based radar is replaced by these more powerful, dependable systems." Era, Reston, Va., develops multilateration, Automatic Dependent Surveillance-Broadcast and other technologies. Its systems are deployed in South Africa, the United States, Malaysia, Norway, Germany, Singapore, Spain, Czechoslovakia and Ireland. Last year, SRA launched a five-year plan to broaden its product and service offerings. In 2008, the company secured contracts with the U.S. Army, the U.S. Department of Defense, Defense Intelligence Agency, Drug Enforcement Administration and Homeland Security Immigration and Customs Enforcement.