Orbital ATK reports it will produce new assemblies, including optical sensor converters and computer processors, for the U.S. Navy's AAR-47 missile warning system for aircraft.

The $30 million Navy contract includes options for retrofitting weapon-replaceable assembly upgrades and delivery of Orbital ATK's counter-measures signals simulator to test systems operability.

"This contract continues to provide the U.S. Navy and Marine Corps our demonstrated AAR-47 aircraft survivability system with hostile fire indication," said Bill Kasting, vice president and general manager of Orbital ATK's Defense Electronic Systems division of the Defense Systems Group. "In 2013 we completed delivery of 500 systems, demonstrating our commitment to deliver affordable innovation on schedule and on budget to those who protect our nation."

Orbital ATK's AAR-47 missile warning system has been deployed since 1987 on a range of U.S. military helicopters and helps protect helicopters and fixed-wing aircraft from surface-to-air threats.

Orbital ATK said addition of hostile fire indication enhances its capability to detect a wider range of threats, including smaller-caliber weapon fire and rocket-propelled grenades.

No information was provided as to the performance period of the contract.