Lockheed said it delivered the 29th aerostat Persistent Threat Detection System, used in Afghanistan to detect threats to troops, this week.
"The U.S. Army has told us PTDS continues to help keep warfighters safer," said Colleen Arthur, director of Integrated Defense Systems for Lockheed Martin's Mission System and Sensors business.
"The real-time situational awareness it provides helps troops identify improvised explosive devices and other threats, track insurgents and enhance overall readiness for our men and women in theater."
PTDS is a tethered aerostat equipped with multiple sensors that can stay aloft for weeks, providing real-time intelligence, surveillance and reconnaissance information. The aerostat is attached by a high-strength tether to a re-locatable mooring system.
Lockheed said it has delivered 66 PTDS systems to the Army since the program was introduced in 2004 and it will continue supporting the program by providing cameras, sensors and other hardware.