Piranha Boat Propeller

Piranha Propeller Hydrobites
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Hydrobite Boat Propeller

Hydrobites are small flow deflection devices on the high pressure side of the propeller blade. The Hydrobites control the water flow over the propeller surface, which improves hole shot, reduces vibration and controls ventilation associated with tight turns and high trim angles.

Buy a Piranha Boat Propeller

The Piranha modular design allows for blades to be replaced due to damage or to be re-pitched for performance. The key to the patented Piranha boat  propeller is the hub. The center hub is made from a high-strength aluminum core, over molded with our specially-formulated composite material.

The Piranha blades are designed to absorb the shock of a propeller strike, which virtually eliminates lower unit damage. The Piranha boat prop hub is so strong that it is guaranteed for life, “you damage it, we will replace it.” The Piranha boat prop design also eliminates spun boat propeller hubs.

The replaceable blades are manufactured from a specially formulated high-strength aerospace composite material. The manufacturing process is so precise, that the blade shape and pitch distribution is superior to Stainless Steel and Aluminum. Blade balance is no longer a problem as the Piranha Propeller blades are balanced to 2 times the industry standard. The precise balancing reduces lower unit damage caused by vibration.

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Repairing or replacing lower units is expensive. The Piranha propeller is so effective in reducing or even eliminating damage, some insurance companies will even offer discounts on premiums. A boat propeller is a critical component to the performance of a boat. Damaged propellers will not only degrade performance, but can cause excessive wear on the lower unit. Spare Piranha prop blades are easily stored, and replacement of a damaged blade only takes a few minutes. With the replacement prop blades on hand, it is simple to restore a damaged propeller to factory new specifications.

Shopping for a quality outboard boat propeller can be extremely challenging. Propeller designs come in a variety of sizes and configurations. The support team at Piranha is available to assist in making the optimum propeller choice for your outboard or sterndrive. Piranha Propellers extensive product line will fit all sterndrive and outboard manufacturers from 6 to 280 HP.

Propelled to Success

Piranha Boat Propeller

INTERCHANGEABLE DESIGN

Piranha’s unique composite propeller design consists of a center hub with three or four slots for inserting interchangeable blades of varying size and pitch.

Easily changing a damaged or broken blade instead of the entire prop lowers ownership cost; interchangeability also allows tuning of propulsion thrust to meet a boats intended use, for either speed or transporting loads.

When a metal propeller blade strikes a submersed obstacle, it can permanently bend or break, with severe impact forces often causing additional costly damage to the motors lower unit.

With a Piranha composite propeller, the blades flex and absorb the energy from minor impacts.  At higher impacts, the blades, which have lower shear strength than metal, sacrifice themselves by breaking and releasing energy before transferring damaging forces to the motors lower unit.

Lower unit repairs can cost up to several thousand dollars, making a $25 composite replacement blade a considerable cost saver, according to Stahl. Read More…

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