US Army ARDEC, AMSTA-AR-PCW-A, Building 10, Picatinny Arsenal, New Jersey 07806-5000

A -- INERTIAL NAVIGATION/WEAPON POINTING SUBSYSTEM (INS) FOR THE AD VANCED TOWED CANNON SYSTEM (ATCAS) SOL DAAE30-96-R-0001 DUE 101695 POC Mr. Robert McMinn, Contract Specialist, (201) 724-3504, email=rmcminn; Gregory L. Gorman, Contracting Officer, (201) 724-3271. This is a market survey. The Government requires an inertial navigation/weapon pointing subsystem (INS) as a part of the Automated Fire Control System (AFCS) for the Advanced Towed Cannon System (ATCAS). The INS shall be a self contained state-of-the-art system capable of self locating to an accuracy of not more than 10 meters horizontal Circular Error Probable (CEP) and not more than 10 meters vertical Probale Error for all combat conditions. The INS shall not require stopping to maintain the required accuracy. The INS may use odometer speed and/or Global Positioning System (GPS) signals to enhance accuracy. However, it shall not be totally dependent upon GPS signals to compute position information of the required accuracy. If required, the GPS receiver shall be the Army's Precision Lightweight GPS Receiver (PLGR), or any receiver having the approval of the GPS Joint Program Office. The INS shall also determine the cant compensated elevation and azimuth of the ATCAS cannon to an accuracy of 0.5 mils Standard Deviation (SD) and 1.0 mil SD respectively. All position and pointing data shall be updated continuously and the information shall be communicated to the AFCS in real-time. The INS shall operate from a standard 28 Volt d.c.military vehicle electrical system, with a power consumption not to exceed 100 watts. The INS shall fully align itself to the required accuracy in less than 15 minutes from a cold-start. It shall also have the ability to perform a rapid alignment to an accuracy of less than 5 mils within 3 minutes, and reinstate its last stored heading within 30 seconds, both from cold-start conditions. The INS shall be able to withstand the shock and vibration and other environmental conditions associated with firing, towing, and gereral operations for the Army's M198 155mm Howitzer. Interested firms should submit in writing their knowledge and qualifications for this effort. (0258)

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