CONTINUOUSWAVE

The Yamaha F70 on my MISCHIEF 15 accelerates to 4,500-RPM turning an aluminum propeller [of unspecified brand, model, and number of blades] marked as 14.5 x 17-pitch. [The recommended full throttle engine speed] should be more than 5,000-RPM, and I infer the propeller pitch should be adjusted. [I pl...