Cotty Fay Marine Design is a small marine consulting firm specializing in computational fluid dynamics, high speed craft, propulsion system integration and product design and development. The high speed craft design includes craft designed for offshore and littoral service for customers including the United States and Singapore Navy and the US Coast Guard. Propulsion system integration includes performance prediction, propeller design, noise and vibration attenuation, rudder design and all regulatory submittals. Product development is the broadest service but has been generally focused on propulsion systems related to engine development and hydrodynamic performance. Computation Fluid Dynamics incorporates the advanced use of the program OpenFoam, a highly regarded open source program developed over the past thirty years.