Robalo R302 with Twin Yamaha 300 HP

 59% Faster at 3500 RPM
26% Better Fuel Economy at 26 MPH

The conventional props tested on the Robalo R302 were stainless steel 15.25” x 19” (38.73 cm x 48.26 cm). The Sharrow props were 15” x 19” (38.1 cm x 48.26 cm).

One of the most critical aspects of every center console’s performance is at what RPM the vessel gets on plane. It is here that the Sharrow Propeller's performance is remarkable. At about 2800 RPM, the boat is firmly on plane (typically about 17 mph for these types of boats) with the Sharrow props and 25.7 mph at 3000 RPM. With the conventional stainless steel props, the boat has not yet been able to climb over its bow wave.

At 3500 RPM, where most engines produce their most efficient performance, the R302 equipped with the Sharrow Propeller goes 59% faster than the boat with conventional blades (32.2 mph vs 20.3 mph). This also means that the boat can stay solidly on plane at about 800 RPM less than it can with the standard props.

Cruising Speed Efficiency: For a boat such as the Robalo R302 center console, cruising speeds are generally considered to be from 20 mph to 35 mph, where the range is maximized and comfort, depending on sea state, is best. Here we see MPG improvements from 14% to 26% for the Sharrow props over the conventional units.

The actual number of miles of increased range the Sharrow props deliver at cruising speeds is significant. Note that at 33 mph, the Sharrow props have 65 miles greater range.

At the cruising RPMs of 2500, 3000, and 3500, the R302 equipped with Sharrow Propellers will get you to your destination 24%-46% quicker at the same RPM when compared to conventional propellers. This benefit also results in a quieter ride (as much as 80% quieter) due to lower RPM and lower cavitation levels.

True Advance™ is a design feature within all Sharrow Propellers™ that contributes to the incredible efficiency and performance of the Sharrow Propeller™. It allows our propellers to achieve their maximum advance rate and efficiency much earlier on in the RPM and speed range of a boat compared to standard propellers. The benefits of Sharrow True Advance™ include:

  • Unmatched Efficiency

  • Greater Range

  • Superior Fuel Economy

  • Increased Load Capacities

  • Faster Speeds (up to 10 MPH FASTER) at Cruising RPM’s

  • Enhanced Handling and Maneuvering

  • Up to 50% More Reverse Thrust for Greater Stopping Power

  • Lower Emissions / Reduced Carbon Footprint

  • Quieter Operation

  • Less Driver and Passenger Fatigue

  • Longer Engine Life

  • Can be Utilized on Virtually any Propeller Driven Craft