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E3 (E-cubed) is a propeller that features innovative technical solutions in its shell, which are combined with the use of materials and treatments so far only applied in advanced technology fields. These innovations guarantee an absolutely superior resistance to mechanical shocks and galvanic corrosion, by no means comparable to the performances of common feathering, folding or solid blade propellers.
Thorough studies and tests have been carried out over several years for the development of the project, allowing to obtain an extremely reliable product in a particularly slim body.
All this guarantees a long endurance propeller with a wide range of applications, making E3 suitable for all race and cruise sailing boats.
The adopted solutions are in line with the latest sailing trends, always oriented towards innovative materials and technologies capable of exalting modern boats' performances.
The feathering 3 blades propeller E3 (E-cubed) is available either for shaft-drive and S-Drive.
E3 is built completely with high-strength and high corrosion resistance stainless steels and has a micrometric pitch-setting device allowing to set the most appropriate pitch from the outside.
E3 doesn't require disassemblage of its parts in order to be installed or removed and doesn't require any hub puller, therefore it can be installed in few minutes easily even underwater.
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All Clements' high performance propellers are manufactured from high integrity castings and a full range of designs are available with a three, four or five blade configuration suitable for all types of semi and deep V planing hulls. Sizes range up to 1.2 metres in diameter, in accordance with ISO standard 484/2 and, if required, to meet the demands of classification society inspection.
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Interchangeable with Flo-Torq & Vortex System SOLAS High Performance / Rubber Hub Stainless Steel Propellers / 3 Blade
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Interchangeable with Flo-Torq & Vortex System SOLAS High Performance / Rubber Hub Aluminum Propellers / 3 Blade
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Interchangeable with Flo-Torq & Vortex System SOLAS High Performance / Rubber Hub Aluminum Propellers
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Interchangeable with Flo-Torq & Vortex System SOLAS High Performance / Rubber Hub
Stainless Steel Propellers
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A propeller is possibly the most essential component of a motorboat and very important for sailing boats too. It requires a lot of attention, both by the naval architect and by the propeller manufacturer. "Specialists", who are able to tell you "off the cuff" what type of propeller your boat requires, simply do not exist. VETUS makes good use of an especially developed computer programme, which ensures the determination of the exactly right propeller for your boat with the aid of some (correct) information, which we require from you.
What are the most important demands made upon a propeller?
Balance
If you bear in mind that a propeller is often rotating at 2.000 r.p.m. (which is more than 30 revolutions per second!), you will appreciate that a good propeller should be well-balanced. A difficult and time-consuming job. but an absolute "must" nonetheless.
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A fixed propeller is a sure choice when you know which propeller is the optimum propeller for your application, and when there are no substantial variations in the speed and payload of your boat. Most pleasure boats, some sailboats and many professional vessels are equipped with fixed propellers. These propellers usually range from two-blade to five-blade depending on individual needs. West Mekan calculates and produces fixed propellers of diameters up to 1500mm, and also distributes fixed propellers from a range of manufacturers. Fixed propellers are suitable for speeds up to approximately 40 knots.
Modern motors, with high RPM rates that make the boat capable of reaching great speeds, can make it difficult to find a suitable standard fixed propeller. This because it is not an easy task to find the correct main parameters such as diameter of the propeller, design pitch, pitch distribution and blade area may with this type of propeller. A specially designed fixed propeller can therefore very well prove to be your best option. But even if the fixed propeller is specially designed, the result may not be satisfactory. Our Type FR propeller is a better and more secure choice in such cases.
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Interchangeable with Flo-Torq & Vortex System SOLAS High Performance / Rubber Hub Aluminum Propellers / 4 Blade
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Interchangeable with Flo-Torq & Vortex System SOLAS High Performance / Rubber Hub Stainless Steel Propellers / 4 Blade
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complete range of 2-, 3- and 4-blade bronze propellers for inboard installations makes the choise easy. All propellers are available as Right Hand rotating propellers and some 4-blades also as Left Hand rotating propellers.
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Bruntons Custom Division was set up to satisfy the growing demand for solutions to increasingly difficult propulsion problems. This specialist division has succeeded in providing clients around the world with the very latest technological answers to seemingly insoluble situations.
The company is able to draw on a full range of specialists who are all employed within the Bruntons Group. Not just naval architects and designers but also metallurgists and the highly experienced craftsmen who actually build the propellers and sterngear.
As yachts and commercial craft become more advanced in both design, and the materials from which they are constructed, it is not surprising that the likelihood of being able to get a propeller 'off the shelf' is proving more and more difficult. By working with clients naval architects early on in a vessels design stage, we are able to develop exactly the right propeller and sterngear for any craft.
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A range of controllable pitch propellers is available with diameters up to approximately 8500 mm and rated for engine outputs of up to 30 000 kW.
MAN Diesel's advanced propeller blade design and calculation methods exploit the latest hydrodynamic theories and tank test results to create a propeller design that ensures maximum efficiency while maintaining low noise and low vibration characteristics.
Complete propulsion packages can be tailored to meet specific requirements by using these propellers in association with MAN Diesel two-stroke or four-stroke diesel engines and, where applications demand, reduction gearboxes
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External pitch adjustment (no tools required for pitch adjustment), increased motor efficiency, very low drag under sail, legendary reverse, and great reliability.
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The 2-blade Gori folding propeller is for sailing yachts fitted with engines up to approximately 60 HP (44 KW). It is available in 7 diameters from 11.5" to 18" for shaft installation and Sail-drive. RH and LH rotation.
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The 3-blade Gori folding propeller marks a technological and functional leap forward in the development of propellers for sailboats. It is now possible for sailboats and motorsailers to gain the folding propeller's speed advantages under sail, combined with the fixed propeller's thrust capability when motoring.
The 3-blade Gori folding propeller was introduced on the market in 1994 and won the DAME award and HISWA award the same year, as the best new marine product.
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"Overdrive" function
The 3-blade Gori folding propeller's "overdrive" function adds a new dimension to sailing under power. The helmsman can choose the propeller pitch and profile in the water while sailing forward, by regulating the yacht's shift and throttle control. Without the use of vulnerable hydraulics or complicated mechanical devices.
The "overdrive" is used when motorsailing in fair weather or when using the engine under sail. The "overdrive" gives the same speed at lower rpms. The result is less engine noise, less vibration and better fuel economy.
The function is simple. E.g. when changing from "overdrive" to normal ahead the shift and throttle control is set in neutral, which allows the propeller to fold. Then the shift and throttle control is set in forward again.
The propeller in itself adds a new dimension to sailing under power. Qualities that are unique to the 3-blade Gori folding propeller.
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Varifold Propellers have taken the market by storm. Regularly fitted by such notable yacht building names as Baltic, Swan, Wally, Moody and Oyster, the complete range of Varifolds has a model for cruiser racing and racing yachts of every size. Varifold is revolutionary in design and brings a revolution to the yachts they are fitted to. Radical reductions in noise and vibration and excellent performance under engine, both ahead and astern, are the result of the propellers unique design. Varifolds have proper helical pitch distribution, including pitch reduction towards the blade tip. This pitch reduction 'unloads' the blade tips and, combined with the skewed blades, greatly reduces noisy pressure pulses against a yachts hull. While some other folding propellers have a helical pitch shape, few have proper sections or pitch distribution. None, put all these requirements into a complete package, except Varifold.
- Diameter 432mm to 813mm or 16" to 32"
- For engines rated to 350HP
- Available for shafts & saildrives
- Latest blade design incorporates high skew and cambered blades for smooth operation
- Pitch reduction at the tip to reduce pressure pulses on the hull
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The 4-blade Gori folding propeller has the same advantages, as the 3-blade Gori folding propeller with Overdrive. The 4-blade propeller has been developed for big sailing boats with engine over 150 hp.
Available in diameters from 23" and upto more than 31" for shaft installation.
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Varifold Propellers have taken the market by storm. Regularly fitted by such notable yacht building names as Baltic, Swan, Wally, Moody and Oyster, the complete range of Varifolds has a model for cruiser racing and racing yachts of every size. Varifold is revolutionary in design and brings a revolution to the yachts they are fitted to. Radical reductions in noise and vibration and excellent performance under engine, both ahead and astern, are the result of the propellers unique design. Varifolds have proper helical pitch distribution, including pitch reduction towards the blade tip. This pitch reduction 'unloads' the blade tips and, combined with the skewed blades, greatly reduces noisy pressure pulses against a yachts hull. While some other folding propellers have a helical pitch shape, few have proper sections or pitch distribution. None, put all these requirements into a complete package, except Varifold.
- Diameters up to 1,016 mm or 40"
- For engines rated to 750HP
- Designed for high power sailboats,
to minimise noise & vibration
- Incorporates the latest low noise
blade design
- High blade area minimises
cavitation and thrust breakdown
at full power giving improved
efficiency and speed
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THIS PROPELLER HAS BEEN DEVELOPED FOR THE RACERS. IT'S FOLDING BLADES JOIN PERFECTLY IN ORDER TO PRODUCE A MINIMUM DRAG. OUR PRODUCTION RANGE FITS THE MAJOR ENGINES USED BY THE RACERS. THIS PROPELLER IS DELIVERED FURNISHED WITH MOUNTING TOOLS.
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The racing series folding propeller from Gori propeller is developed from our experience in supplying the world's leading yachtsmen, many of whom achieved firsts in Admiral's Cups, Whitbread Round The World Races and other major events.
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The racing series folding propeller from Gori propeller is developed from our experience in supplying the world's leading yachtsmen, many of whom achieved firsts in Admiral's Cups, Whitbread Round The World Races and other major events.
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The racing series folding propeller from Gori propeller is developed from our experience in supplying the world's leading yachtsmen, many of whom achieved firsts in Admiral's Cups, Whitbread Round The World Races and other major events.
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The racing series folding propeller from Gori propeller is developed from our experience in supplying the world's leading yachtsmen, many of whom achieved firsts in Admiral's Cups, Whitbread Round The World Races and other major events.
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Varifold Propellers have taken the market by storm. Regularly fitted by such notable yacht building names as Baltic, Swan, Wally, Moody and Oyster, the complete range of Varifolds has a model for cruiser racing and racing yachts of every size. Varifold is revolutionary in design and brings a revolution to the yachts they are fitted to. Radical reductions in noise and vibration and excellent performance under engine, both ahead and astern, are the result of the propellers unique design. Varifolds have proper helical pitch distribution, including pitch reduction towards the blade tip. This pitch reduction 'unloads' the blade tips and, combined with the skewed blades, greatly reduces noisy pressure pulses against a yachts hull. While some other folding propellers have a helical pitch shape, few have proper sections or pitch distribution. None, put all these requirements into a complete package, except Varifold.
- Diameter 305mm to 432mm or 12" to 17"
- For engines rated to 50hp
- Available for shafts & saildrives
- Blades fold completely together for minimum drag
- Modern blade design with substantial blade area for smooth running and minimum noise & vibration
- Rubber bump stops minimise blade opening impact
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By now everybody knows 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 two fixed blades propeller).
The opening operation is automatic and is caused by the centrifugal force, increasing according to the engine revolution. In forward gear the pressure on the blades allows a performance equal to the fixed-blades propeller.
During this opening phase a quick acceleration of the engine is not advisable, and we recommend to make it
smoothly and gradually.
Even at low revolutions the centrifugal force is enough to opening the blades.
When the engine is off, a forward speed of 1 to 2 knots generates sufficient water pressure for the blades to close.
Reverse gear has always been the main problem for folding blades propellers.
Mainly due to the water pressure acting in opposition to the blades opening and the lack of a support point for the blades on the hub, only partially open, and the blades float, causing an unstable and insecure condition when maneuvering.
In order to avoid this inconvenience we studied and tested special blade sections that allow the blades to remain fully open during reverse operation with positive maneuvering results.
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The SOLAS Ski Propeller is designed with a revolutionary new blade geometry to handle a wide range of conditions, from family recreation to sporting and competitive events.
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When it comes to safeguard national security, you certainly do not want to make compromises. Maritime superiority and defense readiness are of crucial importance to ensure a successful mission of naval vessels in times of crisis and conflict as well as for maintaining peace at home or abroad.
When it comes to these vital questions you want to have the best equipment available for your Navy. You want to have the world leader in innovation, design, and manufacture of naval controllable pitch propellers (CPPs) at your side: ANDRITZ HYDRO with its Escher Wyss controllable pitch propellers.
Our leadership in this domain has been acknowledged by our customers and their positive experience throughout decades of navy services. It is proved by the quality of our innovative and numerous navy references. It is demonstrated by the concept of our unique technical design.
Each Escher Wyss naval CPP is a tailor made product based on the continually improved design features and principles of a more than 45 years exclusive development of naval propellers. It is not the result of an adaptation of commercial or civil applications.
Stringent noise requirements for SILENT THRUST and absolute reliability in adverse environmental conditions are of vital importance for a successful mission of naval vessels. Additionally, an economic operation with high propulsion efficiency, easy maintainability and low life cycle costs must be ensured during peaceful times. Consequently, all these fundamental aspects are thoroughly considered in our design efforts.
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Boat shaftdrive propellers
