Product Design Relative velocity fish turbine Environmentally friendly hydroelectric turbine impeller allows migrating fish to pass safely downstream Fire fighting boat Firefighting pump for the U.S. Coast Guard is driven by a gas-turbine engine Notar helicopter NOTAR helicopter axial fan eliminates the tail rotor in McDonnell Douglas helicopters Tiny parts High-volume, miniature canned motor and centrifugal pump for treating water in a nuclear reactor A complete design and development resource Concepts NREC is a complete design and development resource for many types of specialized industrial, commercial, and military equipment incorporating centrifugal, mixed-flow, and axial compressors and pumps, radial-inflow and axial turbines, blowers, heat exchangers, and combustors. Concepts NREC services range from a basic design audit to total product solutions, including precision prototypes, the manufacture and testing of complete systems, and limited-quantity production. A focus on performance, reliability, manufacturability, and cost The first step is to establish specific requirements and goals for performance, reliability, manufacturability, and cost. Then, using these specifications, Concepts NREC integrates the appropriate technologies to generate preliminary concepts, analyze alternative approaches, optimize the chosen design, and produce the best possible product.