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Yamaha Marine Propellers

No matter how powerful a Yamaha outboard you have, it's all for nothing without the propeller. Just as your wheels put power on the road, your propeller puts it into the water. Every ounce of thrust comes from those blades digging into the water and shoving it backwards. All Yamaha boat parts and accessories are important, but your propeller is absolutely vital.

Aluminium Propellers

The most common material for boat propellers is aluminium. Yamaha aluminium propellers are light and readily affordable, making them an excellent choice for most casual boaters. You can also find a tremendous variety of aluminium propellers no matter what your needs. They aren't particularly durable, so if you spend a lot of time in shallow waters you may be concerned about wear and damage to your propeller.

Steel Propellers

Steel means strength. Yamaha steel propellers are stronger than aluminium, so they don't flex under torque. They last longer and can transmit more power into the water than their aluminium counterparts. That strength also means you can use steel for vented propellers to coax that last bit of speed out of your boat. You also want to go with steel if you have a more powerful motor.

Three Blades or Four

The number of propeller blades you need depends on what you do with your boat. Three bladed propellers work better at low speeds where you keep the entire propeller submerged all the time; four blades are better if you go faster and the top blades sometimes leave the water. With four blades, you never have fewer than two blades in the water. To continue with the automotive analogy, fewer bigger blades are like lower gears: more torque and less speed.

Picking the Right Propeller

Picking the right propeller is vital to enjoying your boating experience. If you don't have enough pitch, you may find your engine is running too hard before you even get on plane. You want a propeller that lets you get up on plane right at the sweet spot of your RPM range.

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