Sharrow Engineering funded the development of an enhanced 12-stream dye injection visualization system with high-speed 750 fps camera at the University of Michigan’s Marine Hydrodynamics Laboratory.
As the video shows, the larger volume of the captured stream of the Sharrow Propeller™ and greater downstream mixing. Note in the photo the outer orange streamline that is ingested into the Sharrow Propeller™ passes beyond the tip of the standard propeller. The standard propeller produces a concentrated tip vortex while the Sharrow Propeller™ has no tip vortex; the tip vortex is an induced loss and a source of cavitation.
Here we see underwater video captured on a test vessel which demonstrates one of the greatest strengths of the Sharrow Propeller™. The standard propeller shows tip vortices cavitation (TVC), which coalesces into the typical helical paths from each blade. This phenomenon is expected from a standard blade and a source of energy loss. At this operational point, the speed of advance is low, and the loading is high, so TVC is very likely. Notice that the Sharrow Propeller™ (on the top) doesn't show any TVC, which is one of the many reasons the Sharrow Propeller™ is more efficient than a standard blade.
The noise reduction that you will experience on your boat with a Sharrow MX™ is incredible. Cavitation created by standard propellers is a huge source of noise for boaters. The Sharrow MX™ dramatically reduces traditional tip vortices and cavitation, providing you with a smooth and quiet ride like you’ve never experienced before.
Sharrow Propellers accelerate water much more efficiently than traditional propeller designs. This video explains propeller slip and the incredible True Advance™ technology within each Sharrow Propeller design.
Fox Sports covers Sharrow Marine and the revolutionary Sharrow Propeller at FLIBS 2022
Fox Sports Interviews Greg Sharrow, CEO of Sharrow Marine and inventor of the Sharrow Propeller, at FLIBS 2022 - FULL INTERVIEW
BoatTEST conducted extensive testing comparing the performance of the Sharrow MX-3 Propellers vs. Standard Propellers on a Robalo R302 with twin Yamaha 300-HP engines. Watch the full video to see comparison data of the propellers. “It simply goes further ahead with every rotation.” – Capt. Steve, Director of Testing
BoatTEST.com evaluated a 57’ (17.37 m) catamaran powered by a pair of 300-hp OXE diesel outboard engines. They ran her with custom Sharrow Marine props and conventional 5-blade props custom-made by one of America’s best outboard prop manufacturers.
BoatTEST Sharrow MX™ Propeller review. World Cat 325 DC with twin Yamaha 300 HP motors.
“WE WERE GLUED TO THE WATER. I WAS TAKING HIGH-SPEED PERFORMANCE TURNS THAT WERE JUST UNBELIEVABLE! THE BOAT WAS GLUED TO THE WATER.”
In September of 2019, BoatTEST.com conducted a thorough review of the SHARROW PROPELLER™ and compared the performance to industry standard stainless steel blades. Click on the video above to watch the full video review.