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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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A 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.
QL bronze propellers are available for metric bored propeller shafts. Not available in North America.
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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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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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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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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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Asuitable for all Sail-Drive units, the patented Max-Prop Propeller Rubber Bushiong is the only prop on the market who has been developed on purpose to grant any protection against any solicitation dynamic on the cinematism of the transmission of the movement.
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Very low drag, proven performance, unequalled reliability, outstanding reverse and internal adjustable pitch.
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Very low drag, proven performance, unequalled reliability, outstanding reverse and internal adjustable pitch.
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Autoprop is unique! This remarkable propeller can be found on thousands of sailing yachts the world over! Fitted to all the BT Challenge yachts, and tested in the most arduous conditions, Autoprops benefits for cruising yachts are unmatched by any other product. Considerably reduced drag can be expected from most feathering propellers but unlike ' the others' Autoprops exclusive design enables her shaped blades to automatically find the optimum pitch when motoring or motor sailing, ensuring excellent performance both ahead and astern, with virtually no 'prop walk'.
Faster motoring speeds for the same revs; better economy using lower revs at a yachts normal cruising speed; as much as one knot increase in sailing speed and a huge advantage when motor sailing, unachievable by any other feathering propeller: -
Autoprop automatically adopts the most efficient pitch setting, taking into account the driving force of the sails. The result is increased speed at lower revs, giving longer range and more comfortable cruising.
Too good to be true? There is lots more to be discovered on this web site about this great propeller range, which offers two and three blade versions plus one suitable for sail drives, and Autoprop sizes will accomodate any engine up to 350hp. To find out more follow the links below to download our brochure,fill in our enquiry form, view Autoprops own site or contact us directly using the details on our contact page.
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An innovative new propeller for sailing yachts ...
The Kiwiprop™ is a unique cost effective feathering propeller that eliminates gears, aligns the blades with the streamlines not the shaft, minimises corrosion potential from the lightweight composite blades and offers users easy variable pitch adjustment. In the Kiwiprop™ the individual blades are always free to "weather vane" in the actual water flow, to a minimum drag position so don't cause autorotation.
This modern light weight three bladed feathering propeller has proved much smoother and quieter in operation than equivalent two bladed units and offers the additional benefits of variable pitch, fully lubricated, minimal corrosion potential and the full reverse thrust.
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SCHOTTEL controllable-pitch propellers (SCP), manufactured by SCHOTTEL-Schiffsmaschinen GmbH (formerly WPM), are propulsion systems that can be used with almost any type of vessel. The power spectrum ranges from 600 kW to 30,000 kW, with propeller sizes varying between approximately 1.5 to 8.0 metres.
Advanced calculation methods allow the controllable-pitch propeller systems to be optimally adapted to the vessel’s hull form, thereby maximizing efficiency and minimizing noise generation.
The simple structure of the SCP guarantees a high level of user-friendliness, and the robust design keeps maintenance requirements to a minimum and ensures it a long service life.
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Unlike a fixed propeller which efficiently transfers motor power in only a limited r.p.m. range, the Controllable Pitch Propeller guarantees optimal power transfer throughout the whole r.p.m. range of an engine. Advantages AWM-Controllable Pitch Propeller: more speed in calm sea, more power reserves in rough sea, lower fuel consumption, improved manoeuvring and the maximum power transfer throughout the whole r.p.m. range of an engine Advantages of low fuel consumption: Motor-sailing yachts and motorboats has to cope with changing sailingconditions and wether types. In contrast with Regatta yachts (they can get help from a Regatta organisation) motor-sailingyachts and motorboats have to have thrust in themeselves when something goes wrong. In this kind of situations AWM-Verstelbare Propellers are an extra safety. At the same time low fuelconsumption is important for the boatman, because with long boot expeditions filling stations are often not close by.
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The 5-bladed FASTER Propellers with a blade area ratio of 80% are specially designed for a quiet run and a minimum on vibrations and noise. FASTER 5-bladed propellers are extremely suitable in cases where a propeller with limited diameter must be applied. The 5-blades have large influence on the pressure differences. The higher the number of blades, the smaller will be the pressure differences, what results in less noise. FASTER propellers are cast from Manganese-bronze and on request we can also supply these in Nickel-Aluminium bronze. All FASTER Propellers are dynamically balanced.
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Shaftdrive propellers
