John Eckart has joined HS Marine Propulsion, LLC as the Principal Engineer. Eckart has worked in the marine industry for 25 years in the areas of hydrodynamics and ship propulsion. He spent the past 15 years as a principal engineer with Rolls-Royce Naval Marine, Inc., where he was responsible for propeller and waterjet design and analysis. In that time John designed propellers for hundreds of commercial and military applications. He is a graduate of Kings Point and The University of Michigan with a degree in Naval Architecture and Marine Engineering.