Propeller’s Performance Vent System (PVS)
Comparing the Bravo I LT with the Bravo I FS propeller
Propeller’s Performance Vent System (PVS)
Comparing the Bravo I LT with the Bravo I FS propeller
Testing the HS4 4-blade and the Saltwater Series II 3-blade Yamaha’s propellers
By Thomas P.
The new HS4 4-blade propeller was launched in early 2017 and is designed for Yamaha outboard engines over 200 hp. With the addition of Yamaha’s Shift Dampener System, it is much quieter and offers smoother operation at low rpm.
The HS4 propeller has a diameter of 15 inches and is available in 21", 22" and 23" pitches in both right- and left-hand rotation.
Our Saltwater Series II 3-blade test propeller is also equipped with SDS, has a diameter of 15 ¼" and is available in 18" and 19" pitches.
