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lighter-than-air vehicles - Defense Innovation Marketplace

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Persistent Ground Surveillance Systems (PGSS)Table 8: PGSS Program OverviewVehicle Class: AerostatMission Set: ISROrganization: NAVAIR, Army G-2Primary Contractors: Raven, TCOM, L-3 WescamProgram Start: 2009Technology Readiness Level (TRL): 8Figure 15: PGSS in Moored Configuration 22The objective of PGSS is to providecontinuous, real-time ISR, force protection,FOB protection, and oversee support to theFOBs throughout OEF. The system isutilized by FOB commanders to observeattack preparation, IED emplacements andinsurgent activities such as hostage takingand car hijackings. The cameras have arange of approximately 18 km (360° aroundthe aerostat) and can be combined with othersensors, such as shot detection monitors, tolocate live fire. 23Sensor payload configurations can include:EO/IR cameras (Wescam MX-15 or FLIR380 HD), wide area surveillance systems(WASS), expendable unattended groundsensor (EUGS), COMMS packages,Unattended Transient AcousticMeasurement and Signature Intelligence(MASINT) Sensor (UTAMS) small armsfire detector, and radar systems. There is noone standard payload suite, but commoninterfaces allow swapping capabilities andversatility in the field. PGSS issupplemented with tower systems in order toenable system recovery and rep<strong>air</strong> ifneeded. 23Three PGSS variants have been developedbased on different platforms: the TIF 25K,the TCOM 22M, and the TCOM 28M.Differences between systems are shown inTable 9. All systems are at a TRL 8. Poweris provided to payloads via the tether. Nohangar is required for PGSS, but a 200- to250- ft. diameter clearance is needed forlaunch and recovery depending on theaerostat size. PGSS has wind restrictions of10 kts. during inflation, 30 kts. duringmooring, 25 kts. during helium top off and iscapable of conducting flight operations in upto 50 kt winds. 23PGSS was started as a Joint CapabilityTechnology Demonstration (JCTD) programin response to urgent United States Forces-Afghanistan (USFOR-A) requests to covercritical shortfalls in Persistent Surveillance.Joint Requirements Oversight Council(JROC) validated the requirement to supportthe Joint Urgent Operational NeedsStatement (JUONS). Army G-2 providedand OSD provided funds for the JCTD.NAVAIR was tasked to lead the effort,while Army G-2 REF provided funds. Theprime contractor initially selected to makethe aerostat balloons was Raven Aerostar.Aerostar’s TIF 25K model aerostat wasinitially selected as the platform and wasfollowed by TCOM’s 22M model aerostat. 2321

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