ATK announced that its recently-developed hostile fire indication (HFI) capability upgrade for the AAR-47 missile warning system has been approved by the Department of the Navy for fleet introduction. In addition to the AAR-47’s longstanding, combat-proven ability to detect incoming missile threats, the new HFI capability provides enhanced protection through detection of smaller-calibre weapon fire and rocket propelled grenades. ATK is the first company to deliver this key capability as part of a proven missile warning system.

With ATK’s unique HFI capability added to the AAR-47, military aircrews flying helicopters and fixed-wing aircraft can detect a wider range of threats to their aircraft, and quickly respond with countermeasures. The HFI will be provided as a software upgrade and requires no hardware modifications to the aircraft or existing AAR-47 components. The upgrade is scheduled for delivery to the fleet later this year.