Military


AN/TPQ-47 Firefinder Block II Radar

The AN/TPQ-47 (Formerly AN/TPQ-37 P3I Block II) is the next generation Firefinder, which will replace the AN/TPQ-37 antenna transceiver group (ATG) utilizing advanced technology that will provide rapid and increased target location, improved accuracy, and target classification at greater ranges. This is a new capability to provide the warfighter continuous and responsive counterbattery target acquisition for all types and phases of military operations. This system will compliment the next generation of longer range weapons and munitions being developed for fire support, and revolutionize the way the Army conducts the weapon locating mission.

The AN/TPQ-47 will provide a significant capability to the Army by doubling the current artillery detection range of the AN/TPQ-37. It also adds a new mission area for Firefinder to detect Tactical Ballistic Missiles out to 300 kilometers in range. Proposed requirements for the AN/TPQ-47 include increased range and accuracy for both conventional artillery (60 km) and tactical ballistic missiles (250+ km) locations, enhanced survivability against DF/ARM threat, drive on/off C-130 and larger aircraft, on-board pos-nav system, remote operational capability, and ability to process stored targets on the move. The improvements are especially critical in the role the AN/TPQ-47 can play in deep operations and the active, passive defense attack operations against tactical ballistic missiles. Other capabilities include target classification, reliable target identification, automated emplacement and greatly reduced operating and sustainment costs.

The AN/TPQ-47 configuration includes the Operation Central, the Antenna Transceiver Group, the Prime Power Group, and the Portable Operations Suite. The upgrade will replace the Antenna Transceiver Group to double the current range performance for detecting incoming fire from mortar, artillery, and rockets, and provide improved targeting capability for counterbattery fire. The AN/TPQ-47 will detect tactical ballistic missiles at ranges out to 300 kilometers. The upgrade integrates with the Advanced Field Artillery Tactical Data System (AFATDS) software to ensure rapid counterfire.

The AN/TPQ-47 is designed to deliver superior transportability and mobility. It can be transported in a single C-130 sortie or by CH-47 helicopter lift. Rapid emplacement and displacement can be accomplished by a six-person crew.

The AN/TPQ-47 Firefinder's modular field-repairable design minimizes down time to maintain high system operational availability. An auto calibration algorithm allows the antenna to be recalibrated in the field.

The Q-47 provides a substantial increase in range and accuracy over the Q-37. Like the Q-37, the Q-47 is optimized for rockets and cannons. The probability of locating an enemy system in normal mode is .85 or higher throughout the entire range fan for a specific target category. The Q-47 can locate light and heavy mortars at ranges out to 18km and heavy mortars out to 30km with the same probability of location. It locates artillery and light rockets out to 60km and heavy rockets out to 100km. General planning ranges are 18km for mortars, 60km for artillery and light rockets and 100km for heavy rockets.

A contract for three Engineering and Manufacturing Development (EMD) protoypes was awarded to Raytheon Systems Co. May 19, 1998. The contract duration is 53 months to design, fabricate and test 3 production representative systems. Contract completion is expected by February 28, 2002. Nomenclature for the system changed from Firefinder AN/TPQ-37 P3I ( BlockII) to Firefinder AN/TPQ-47.




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