Description
Persistent Threat Detection System. The PTDS Persistent Threat Detection System is a tethered aerostat-based system in use by the Army since 2004, the Persistent Threat Detection System (PTDS) is equipped with multi-mission sensors to provide long endurance intelligence, surveillance, reconnaissance and communications in support of coalition forces in Afghanistan and Iraq.
PTDS is a tethered system, which flies like a kite with no propulsion. The system is a 74,000-cubic-foot envelope full of helium and aerodynamically-shaped always pointed into the wind with fins and a tail system and is always buoyant, The maximum altitude is 5,000 feet above ground level
