the addition of the world's largest jet engine testing facility, the Aero-propulsion Systems Test Facility, to the center's aerospace flight simulation test facilities. For the first time in the center's history, more than one major contractor performed work on base. The center's workload split into three contracts — support, propulsion testing and aerodynamics testing. In 1981, Pan Am World Services became the support contractor, Sverdrup Technology, Inc. took over propulsion testing and Calspan Corp. began aerodynamics testing. In 1985, Schneider Services International replaced Pan Am as support contractor. Post-Cold War The 1990s were a decade of change at AEDC. From opening its doors to commercial customers to "reengineering", the center's people explored better ways of doing business. Early in the decade, the center signed formal, long-term working alliances with several commercial aerospace organizations (Boeing, General Electric, Lockheed, McDonnell Douglas, Pratt & Whitney) to steady the workload and to offset dwindling defense budgets. That led to companies like Pratt & Whitney and Boeing bringing projects that were strictly commercial to AEDC. AEDC leaders began to emphasize strategic management, meeting in focus groups to consider the long-term health of the center. An outgrowth was reengineering the center, an ongoing process that seeks to streamline operations and standardize maintenance processes. It was also a decade that saw the center break new ground on the computational front. Computational Fluid Dynamics, using computers to simulate flight, saw an increasing role in many major test programs. Using CFD and traditional ground testing together, helped hold down costs and provide more reliable data to test customers. In 1998, the center was designated as one of the Department of Defense's High-Performance Computing Centers, making funding available to augment the center's supercomputing capability making AEDC the 9th largest computer center in DoD. The Navy docked at AEDC when its engine test facilities at Trenton NJ were transferred to AEDC as part of DoD consolidations under the Base Realignment and Closure Act. The move added four engine test facilities (SL-2, SL-3, T-11, T-12) and about 10 Navy personnel. The Air Force and Navy quickly integrated, making the center's vice commander and other slots Navy positions. Later in the decade, on Oct. 1, 1997, AEDC assumed management for the former Navy Hypervelocity Wind Tunnel 9 in White Oak, Md. Other facilities that came on line during the decade included J-6 — the world's largest solid rocket motor test facility — and