Shiftless no more

Article Abstract:

The Mercury Marine Variable Pitch propeller ($600) has the ability to change pitch settings while a boat is traveling through the water. The propeller is best suited for heavier boats with less powerful engines and may not significantly improve performance on all boats.

Propellers, Variable pitch, Variable pitch propellers, Mercury Marine Variable Pitch (Propeller)

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Sound judgment

Article Abstract:

Motorboaters can quantify boat noise by using a crash-test sound dummy made up of soft silicone incorporating a very sensitive microphone. They can also utilize new materials to minimize the 'drum' effect within the craft.

Management, Maintenance and repair, Noise control, Motorboats

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ComProp propeller

Article Abstract:

The ComProp propeller is a low-priced four-blade propeller made of composite materials. The propeller offers quick acceleration and features blades designed to break off to protect the gear mechanism. The price is $94.95.

Propellers, ComProp (Propeller)

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