NMPA Prop Talk Live Episode 5 taps into 37 years of propeller design and engineering knowledge in a discussion with Hydrodynamicist John Eckart from Missouri based HS Marine Propulsion. Host Jody Bell, NMPA Board Member and Owner of Osborne Propellers in Vancouver, British Columbia poses several questions to our guest speaker on the topic ‘The Evolution of Propeller Design Trends & Manufacturing: Effects on the Marketplace and Impacts on Prop Repair’.