William D. Marscher, PE

William D. Marscher, PE is a fluid systems engineering expert specializing in rotating and reciprocating machinery, particularly large turbines, generators, compressors, and pumps. With a career spanning mechanical design, engineering physics, and turbomachinery development, he brings a multifaceted engineering perspective to litigation work. His work centers on investigating machinery failures, assessing vibration issues, and evaluating whether design deviations contributed to system malfunctions.

Mr. Marscher has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to fluid systems, rotating machinery, and mechanical systems testing. His B.S.M.E. in Mechanical Engineering from Cornell University, Master Eng. (Mech. Des.) in Mechanical Design, and M.Sc. in Engineering Physics (Applied Mechanics) from Rensselaer Polytechnic Institute, along with his Professional Engineer license in New Jersey, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving turbomachinery and vibration diagnostics.