Yamaha 30hp to 60hp + 25hp ‘High-Thrust’ Motors – 3 Blade Dual-Thrust Aluminium – 13 Spline Shaft Propeller. ** Yamaha’s large-diameter, low-pitch dual-thrust propellers are designed to give instant power in both forward & reverse, by redirecting exhaust gases away from the propeller, reducing reverse ventilation and generating more power to the water. This increases forward thrust by up to 60% & reverse thrust by up to 70%
