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... about the function of the folding blades propeller for sailing hulls is: TO REDUCING THE PROPELLER DRAG DURING SAILING (propeller drag is reduced about 90% compared to the traditional ...
Eliche Radice S.p.A.
... Magnesium alloy propellers are worked with tollerances ISO 484 class 1°, dynamically balanced and painted in black color with a special epoxy powder which is axtremely hard and resistant to abrasion. Attention Our ...
Eliche Radice S.p.A.
Eliche Radice S.p.A.
... profile for a minimum drag in closed position. Geared blades for simultaneous closure. We do not manufacture folding propellers for saildrives.
... is the smallest of EWOL propellers, which however offers the same features and advantages of the original E3 ORION even for smaller boats, roughly between 18 and 30 feet. E3 ANDROMEDA is a cutting-edge feathering ...
In brief: The EWOL Hi-Speed propeller for sailboat is available with Sail Drive transmission or shaft line, 3 blades. It is built in stainless steel with high mechanical and corrosion resistance. It ...
... , great maneuverability of the boat, but at the same time delicate and safe reversals for the inverter. Like all EWOL propellers, E4 PEGASUS maintains exceptional characteristics thanks to the quality of the materials ...
Designed to be used for sailing boats, it offers minimum drag when sail-sailing. Ra = 0,2 ~ 0,25
Supplied for sailing boats tha go sailing and use the engine as an auxiliary, has been particulary studied to reach the maximun performance at a required cruising-speed. Ra = 0,33
2 bladed folding propellers, reduce drag while sail-sailing, and gives a good advantage in race. Ra = 0,2
The cruising sailors’ propeller. Its skewed sections are designed to reduce vibration. The HYDRASAIL offers a similar performance under power to a conventional 3 blades propeller, but due to its reduced ...
The HYDRAPOISE 3.45 is ideal for low powered displacement workboats and auxiliary sail craft. The aerofoil sections are designed to give optimum performance and manoeuvrability. Manufactured from high tensile manganese bronze as standard, ...
... working under various conditions, various trips, various speeds ... SAILBOAT Change the pitch for a minimum resistance in sailing. When you are in a light breeze, the propeller pitch can be ...
... feathering and folding propellers. FULL POWER REVERSE Tests have shown that the efficiency of the 2-blade Gori propeller in reverse is equal to or better than most 2- or 3-bladed fixed, feathering ...
Gori Propeller
Varifold folding propellers have taken the market by storm. Regularly ftted by such notable yacht building names as Baltic, Swan, Wally, Moody and Oyster, the complete range of Varifolds has a model for cruiser racing ...
Conventional cruiser type propellers can cause tremendous drag on sailing boats. For this reason we manufacture a range of narrow bladed two and three blade yacht propellers. These units are available ...
Austral Propeller
For the cruiser over 30', the MP 3 propeller has the blade area to get the job done. The thrust provided not only produces cruising performance when the sails are down, but also offers excellent maneuverability while docking.
Michigan Wheel Corporation
... folding prop. We have redefined the concept of low-drag sailboat propellers, creating a family of folding, feathering and fixed blade props. We've literally changed the expectations for sailboat ...
Martec
... thrusts! The propeller was designed and developed to the production stage in close collaboration between Bruntons Propellers and SPW GmbH, SPW having conceived the design and Bruntons taking on construction. ...
SPW
How to choose this product
A propeller is a mechanical device composed of a cylindrical hub with a series of blades around its circumference. Because of their helical form, the blades produce thrust as they turn, propelling the craft forward. It is designed specifically for sailboat auxiliary engines, where the performance/fuel consumption ratio is more important than speed. Folding propellers considerably decrease drag under sail.
Applications
All sailboats equipped with an inboard engine require a propeller adapted to its reduction gearing. Those presented under this heading are all specifically designed for sailboats.
Technologies
Such propellers are generally made of copper, bronze, cupronickel or stainless steel. The hub has a conical hole in its center to fit on the propeller shaft, or by a crenelated hole into which slides the spline of a sail-drive.
There are two, three or four blades whose degree of twist determines the 's pitch. Propellers are characterized by pitch and diameter. Two- or three-blade folding propellers are equipped with a rack. The force of the water flowing beneath the hull under sail causes the blades to fold together, decreasing drag and increasing speed.
How to choose
Specify the motor's reduction gear ratio and type of transmission, whether shaft or sail-drive. Racing sailors will appreciate the increased speed offered by a folding propeller.
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