5-Blades WHISPER Max-Prop Propeller, shaft 45-50 mm, Spinner 120mm

5-Blades WHISPER Max-Prop Propeller, shaft 45-50mm, Spinner 120mm

Unique Characteristics of the WHISPER

• The Max-Prop Whisper uses five blades to provide quiet operation and impressive thrust. Especially against heavy wind ans seas, the fifth blade will maintain boat speed on a heavy vessel. Also, the fifth blade provides am smoother operation quieting down propeller noise on larger applications.
• The WHISPER is based on the EASY design, so it ships fully assembled, making installation and pitch changes simple and fast. The pitch is adjustable, providing the ability to fine tune the loading of the engine. Moreover, pitch adjustment can be done in the water as the propeller does not need to be disassembled to change the pitch.
• On the body of each propeller two threaded holes (housings) are obtained, marked with letters “R” and “L”; a screw/rod is inserted in each hole. The pitch of the propeller, for both forward and backwards motions, can be easily varied by changing how deeply each screw/rod penetrate the body:
• A series of equidistant grooves are carved in the head of each screw/rod. These grooves have dual capacity: locking the screw/rod in the selected position by fastening it with a threaded grub screw, and precisely defining the value of the rotation angle of the screw/rod, when switching from fastening in a groove to fastening in the next groove. All the propellers have been sized so that, by one complete turn of the screw/rod, the corresponding pitch of the propeller varies by four degrees. Therefore, since there are eight grooves in the head of each screw/rod, by shifting the locking of the screw/rod from one groove to the next (i.e. by a single groove), the propeller pitch will vary by half a degree.
• The WHISPER is designed for larger moderate to heavy displacement vessels. Which can benefit from the extra thrust and quiet performance of a five blade propeller. Very helpful also in applications where the propulsion system has very reduced space.

 
For Shaft Diameter 45mm ISO, 50mm ISO or 1-3/4" SAE
Propeller Central Housing / Spinner 120mm