July is National Ice Cream Month
It’s here again! Hot, sweaty, summer sun, and the perfect season for our favorite treat! July is National Ice Cream Month. In 1984, Senator Walter Dee Huddleston of Kentucky introduced a resolution to proclaim the month of July 1984 National Ice Cream Month and the 15th of the month National Ice Cream Day. The bill […]
What Causes Propeller Ventilation?
What Causes Outboard Propeller Ventilation? Propeller ventilation is often confused with cavitation. For information about cavitation, see our What is Propeller Cavitation post. Propeller ventilation is when surface air or exhaust gasses are drawn into the propeller blades. When this occurs, boat speed is lost, and engine RPM increases rapidly. What causes Propeller Ventilation? Propeller […]
What is the difference between Bronze and Nibral?
What is NiBrAl? And how is it different from bronze? In the realm of inboard propellers and ski wheels, we primarily see products made of Manganese Bronze VS NiBrAl which is an alloy blend with nickel, bronze, and aluminum. While the two look very much alike, nibral is considered harder, stronger and more corrosion resistant. […]
What is Propeller Cavitation?
What is Propeller Cavitation? Cavitation is bubbles caused by excessive propeller speed or loading. The water vaporizes or boils due to the extreme reduction of pressure on the back of the propeller blade. Many propellers partially cavitate during normal operation, but excessive cavitation can result in physical damage to the boat propeller’s blade surface due […]
All about Anodes and Electrolytic Corrosion
How do anodes protect my boat from electrolytic corrosion? What are sacrificial anodes and why do I need to replace them? Any time you have exposed metals on your boat, you’ll want to protect them with sacrificial anodes. Anodes are often referred to as “zincs,” although different materials are used in different applications. Anodes are […]
How to Read Propeller Measurement Markings
HOW DO YOU READ PROPELLER DIMENSIONS? Most propellers will have measurements stamped between the blades, or around the hub on the aft end. Let’s look at this example: 14-1/2 X 19 RH 3 Blade SS Apollo Propeller We’ll break it down by section:14-1/2 : The propeller diameter. The diameter is always the first set of […]
