The new SHARROW PROPELLER™ Is the first major advancement in propeller technology since the 1930s. Its design, enabled by modern computer modeling and additive manufacturing, has advanced solutions to some of the basic limitations of rotary propulsion.
It is suitable for all marine applications, including freighters, tankers, workboats, pleasure craft, personal watercraft, unmanned surface vehicles, submersibles and high-speed watercraft, as well as extensions to aeronautical use on aircraft, UAVs, fans, compressors, turbines and jet engines.
Its design, enabled by modern computer modelling and additive manufacturing, has solved the most basic problem of rotary propulsion. Specifically, tip cavitation and vortices have been eliminated or significantly reduced on the SHARROW PROPELLER™, resulting in the following benefits over traditional propeller designs:
Dramatic reduction in fuel cost
LESS WEAR AND TEAR ON ENGINE SYSTEMS + LESS IMPACT ON THE VESSEL
Over the past 6+ years, extensive testing data collected at the University of Michigan’s Marine Hydrodynamics Laboratory, along with results from internal CFD and FEA analysis have been collected and analyzed by Sharrow Engineering. Additionally, Sharrow Engineering implemented a rigorous in-water test program using manned vessels in lakes, rivers, and bays. Results from this extensive research program demonstrate that the Sharrow Propeller is 9%-15% more efficient than the industry standard Wageningen B-series design. The SHARROW PROPELLER™ also exhibits a wider peak efficiency curve for greater utility over a wide scope of operational ranges and a 17% reduction in torque while accelerating. EFFICIENCY GAINS OF THIS MAGNITUDE ARE GAME CHANGING FOR THE GLOBAL PROPELLER INDUSTRY WHERE 1% IS CONSIDERED SUBSTANTIAL. Testing methodology and results were independently analyzed, reviewed and validated by Applied Universal Engineering of San Diego, CA and HS Marine Propulsion of Ocean Springs, MS.
The International Maritime Organization (IMO) has new regulations that will require the reduction of exhaust gas sulphur oxide (SOx) to 0.5% globally and 0.1% in certain geographic regions by 2020. This will require shifting to more expensive LNG or Medium Gas Oil fuels, or by installing exhaust stack scrubber systems, exhaust gas recirculation systems, or chemical processing, all at considerable capital cost and significant reduction in vessel efficiency. The SHARROW PROPELLER™ can easily be retrofitted to existing propulsion systems to generate immediate fuel savings of 9%-15%, or added to new propulsion systems to enhance efficiencies.