We have two complete propeller service-centers and distribution facilities to help us support all of our customers' needs.
We provide technical analysis in identifying the most efficient way to maximize vessel performance. Using your vessel and engine specs, we'll show you exactly which propellers will help you with important performance issues.
The correct propeller size allows the motor to achieve maximum RPM within the manufacturer's maximum rated RPM range at wide open throttle. If you are below the rated RPM range you need to purchase a propeller with less pitch. If you are over the maximum range you need to purchase a propeller with more pitch. One inch of pitch equals approximately 200 RPM on outboard and sterndrive applications. Inboard applications depend on reduction gear ratios and operating conditions.
Disclaimer: Johnny’s Propeller Shop, Inc. offers propeller size suggestions as a free service to the public. Propeller sizing is very complex and subjective in nature. All propeller suggestions are subject to sea trial and are offered at the sole risk to the consumer. Johnny’s Propeller Shop, Inc. assumes no liability for damages as to the outcome of our propeller suggestions.