Naval Surface Warfare Center, Carderock Division, 9500 MacArthur Blvd., West Bethesda, MD 20817-5700

A -- DESIGN & DEVELOPMENT OF ALGORITHMS SOL N00167-97-Q-9105 DUE 022797 POC Ray Park, Contracting Officer, 301-227-1121 The Carderock Division Naval Surface Warfare Center intends to negotiate a sole source procurement with George Mason University to design and develop automatic control and estimation algorithms for the NSSN. The NSSN algorithms will initially take the form of the SEAWOLF Vertical Ascent and Descent(VAD), PILOT, Variable Ballast and Trim(VBAT) and SEA Energy Estimation(SEE) algorithms. The VAD algorithm computes a valve command that controls the seawater flow control valve in the depth control tanks to ballast or deballast the ship. The SEE algorithm estimates and predicts the average suction force on the hull as well as determines the seaway direction with respectto the submarine. Both of these algorithms, subsequent to modification to account for the hydrodynamic differences between submarines, will be converted for use on the NSSN. Only one responsible source and no other supplies or services will satisfy agency needs under the authority of FAR 6.302.1. Anticipated award is on or about 2/27/97. See Numbered Note(s): 22. (0036)

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