In the previous article, we saw how a propeller works and what its main parameters are. Now let’s see what the market has to offer.
Italian Propellers offers a range of standard propellers including 3, 4, 5 and 6-bladed propellers, made of OTS alloy (brass and manganese) and NIBRAL alloy (nickel, bronze and aluminium), ideal for all types of boat, as well as custom models. There is also the CMC model, an advanced surface propeller with an efficient geometry that guarantees outstanding performance.
Suzuki has launched a new generation of steel propellers for its high-performance single-propeller engines. New blade shapes have been developed to increase the torque and power output of Suzuki’s high-performance engines, and a new type of bushing has been introduced that includes an easily replaceable silent block (to prevent propeller “slippage”), without the need for special tools.
The Vetus catalogue of 3- or 4-blade propellers is very rich: you can choose from more than a thousand solutions in bronze/manganese, right or left-handed, in any shape and diameter. The secret? Vetus uses a specially developed computer program to determine the right propeller for your boat, capable of adjusting the balance, size, material and area of the blade.
One of the companies with the longest track record in the production of boat propellers – 80 years. The range proposed for standard models includes 2, 3, 4 and 5 blade propellers up to a diameter of 4 metres. Eliche Radice’s strong point is the background of experience gathered in a software that allows the determination of all the parameters and the design of the best propeller for each type of boat and transmission.
The diameter of the Lexor, the three-bladed stainless steel propeller from Solas, is extended and the blades are larger to push even large hulls hard. The propeller guarantees excellent performance at high and medium speeds and is designed for maximum efficiency (and therefore fuel saving).
When Volvo Penta launched its revolutionary IPS (Inboard Performance System), it set a new standard in efficiency, comfort and manoeuvrability by turning the propellers in a forward facing position. These two counter-rotating propellers, an important element of the hydrodynamic propulsion unit, pull the boat over the water instead of pushing it.