Thales on Monday closed its acquisition of a Moog [MOG.A, MOG.B] business unit that designs, develops and manufactures ground and ship-based radio frequency navigation beacons and related antennas for defense and civilian customers.

Terms of the deal, which was first announced in June, were not disclosed. The Moog Navigation Aids business is based in Salt Lake City, Utah, and has about 50 employees.

The acquisition complements Thales’ existing navigation aids and air traffic management business and provides additional man-portable technology, bolstering support for its customers’ demand for contingency and mobility needs. Thales’ customers for these systems and technologies include the Federal Aviation Administration, the Defense Department, and airports and air navigation service providers worldwide.

“The navigation infrastructure in North America is in urgent need of modernization with thousands of ground-based navigation aids operating well beyond their design life,” Todd Donovan, vice president for Thales Air Traffic Management, Americas, said in a statement. “Additionally, the DoD’s doctrine is pushing for increased mobility and ability to operate more effectively in austere environments. The acquisition of Moog’s navigation business enhances our ability to address these customer needs.”

Moog sells its navigation aids to the Navy, Marine Corps and global air navigation service providers and military forces.

The acquisition also expands the U.S. presence of Thales, which is based in France.