For boat owners around the globe, Deep Blue Yacht Supply is your trusted source for all size Nibral and Bronze Inboard Propellers. We are committed to providing the best inboard props, at the lowest prices; with superior customer service.

Deep Blue Yacht Supply has the largest inventory of Nibral and Bronze Inboard Propellers; you will be sure to find the best wheels for your boat. Deep Blue Yacht Supply carries Michigan Wheel Inboard Propellers, Hung Shen Propellers, and HyTorq Propellers, and are able to source Teignbridge Propellers, Rolla Props, Radice Props, CJR Propellers and Brunton Propellers.

Need assistance in selecting the best Nibral or Bronze prop for your inboard engine? Submit an Inboard Propeller Sizing to our propulsion & running gear experts, and receive back the correct inboard boat propeller based on your boat’s vitals.

Trust Deep Blue Yacht Supply to help equip your vessel with the best possible boat props. Deep Blue Yacht Supply is able to provide the ultimate sales and service experience, when it comes to selecting the best inboard propellers for your application.

While an inboard boat prop performs a simple task, propelling your boat through the water, there are quite a few considerations to keep in mind when choosing the proper propeller for you particular boat and engine. Using the wrong propeller can be inefficient and waste gas as well as causing damage to your engine over time. Plus, you won't get the full enjoyment from your boat. The following is a basic guide to choosing the right inboard boat props for your boat and type of usage.

Inboard boat props can come with 2, 3, 4 or even 5 blades and the general rule of thumb is the more blade surface area you put against the water the more thrust you develop. While simple in theory, it isn't really that simple in practice. In general though most pleasure boats will use a 3 blade prop, although once horsepower goes up a 4 blade prop can sometimes give a smoother ride and higher plane. It is really a function of your boats hull design and needs to be tested to see which you prefer. A 4 bladed prop will also help with slipping problems especially in rough water. 5 bladed inboard boat props are generally only used by trawlers, tug boats and workboats and then only when 4 bladed props give too much vibration.

Many boaters use their boats for a variety of things. Fishing, cruising, water skiing and trawling are just a few of the uses for a pleasure boat. If this is the case for you then you will have to make a decision on whether you want a prop that will give you more pulling power or a prop that will give you better speed. In general the pitch will control this with a higher pitch giving more speed and a lower pitch giving more power and acceleration. You will have to decide which is most important to you and choose your prop accordingly or else switch inboard boat props based on your intended usage. One thing you can do if you usually prefer power, but occasionally need speed is to have your blades cupped, which will increase your top speed by 3mph or so.

Inboard boat props should have a clearance of at least 15% of the diameter of the prop between the prop tips and the bottom hull of the boat and ideally this will be 20% or more. If your inboard boat prop diameter is too large then you can increase the pitch to compensate for the smaller diameter as long as the difference is no greater than 1 or 2 inches. It can also help in some instances to switch from a 3 blade to a 4 blade propeller to put more blade area against the water and increase control.

As you can see there are many different considerations to keep in mind when choosing the proper inboard boat props. Using the guidelines can help you get good performance, but there is always room for improvement and the only way to know for sure if an increase in pitch will help or if you like the feel of 4 blades versus 3 is to test it out for yourself.

All about inboard propellers

An inboard prop is responsible for moving a boat through water but choosing the right one can be challenging for boat owners. Propellers are available in a variety of sizes and in different configurations depending on boat owner preference and needs. The propeller should be efficient and operate smoothly to avoid damaging the engine and prolong the life of the boat. Here are some things to consider when choosing a boat propeller.

Selecting the Right Number of Blades

Manufacturers produce props with anywhere between two and five blades and each has its own advantages and disadvantages under specific boating conditions. Boat owners should analyze their own use to determine which prop to purchase. A higher amount of surface area will generally produce more thrust for the vehicle but the engine has to have the horsepower to handle it or the extra surface area will produce too much drag. The average pleasure boat works well with three blades but with more horsepower available, a four bladed prop produces a higher plane and smoother ride. Your boat hull design must be able to accommodate the four blades. Four blades help prevent slipping in rough water conditions. Trawlers, workboats and tugboats use five bladed props, but only if four blades produce too much vibration.

Different Props are Better for Different Jobs

Pleasure boat owners typically use their vessel to water ski, cruise, trawl and fish. Some props provide more speed while others have features that allow for additional pulling power. The higher the pitch, the more speed the prop will produce. A lower pitch produces better acceleration and more power. You should choose a prop that best fits your needs or various props to use in different situations, depending on how you use your boat and how frequently you take it out on the water. Boat owners who need speed occasionally but prefer more power most of the time can consider having the blades cupped to add approximately three miles per hour to the boat’s top speed.

Choosing the Prop Diameter

The clearance between the inboard prop blades and the boat hull should be a minimum of fifteen percent of the prop diameter but 20 percent or more is even better for optimum performance. If the prop is too large in diameter, it is possible to increase the pitch by no more than one or two inches to compensate. A prop with four blades has more surface area against the water than a prop with three blades and provides more control for the pilot.

Choosing the right prop for your boat may require some trial and error to determine which works best for your vessel and meets your boating requirements. Testing different pitches and props with different numbers of blades will give you a feel for which works better. A boat expert can help guide you in your decision by answering your questions. Testing may take some time but it is worth the effort to find the prop that performs best for your individual needs.

Propellers May Drag When Boats Use Wind Propulsion

When a watercraft has no other propulsion system except for inboard boat propellers, the issue of drag under sail simply does not come up.  Sailboat enthusiasts, however, know that it can be a real and pressing issue when they are using their sails to power the watercraft.

Why sailboats have propellers

Some might question why sailboats would have inboard boat props or other sailboat propellers in the first place.  They are certainly not necessary in the strictest sense of the word.  The trouble with using wind as a sole propulsion system, however, is that sometimes the seas are perfectly calm.  Many sailboat owners prefer to equip their boat with a propeller so that they need not worry about a lack of wind.  Indeed, in case of an emergency on board it can be critical to have an alternate means of propulsion. Sailor 2, Sailor 3 and MP3 boat propellers are ideal for this purpose.

The issue of drag under sail

When sails are billowing, however, motorized propulsion will not be necessary.  Boaters are divided as to the best way of dealing with the drag that an outboard motor can produce on a wind-driven sailboat.  Some believe that the best procedure is to lock the propeller into reverse any time the engine is switched off.  This will keep the propeller from being able to spin freely in the water.

Other boaters insist that it is best to allow propellers to spin while the boat it under sail.  To accomplish this, the engine should be switched into neutral gear.

Radice Boat Propellers

When boaters consider a propulsion solution for their watercraft, they often opt for Radice propellers, which are produced by the Eliche Radice company.  This firm has been in business since just after the First World War and is still family-owned today.  The company also produces shaft lines, struts, rudders, and bearings, but Radice props remain one of their most important product lines.

Radice boat propellers owe a large part of their success to the dedication of the 85 employees working in its large facility in Italy.  The foundry producing their products has an annual capacity of 600 tons, and every propeller project they take on goes through years of exacting experimentation in order to make sure that all specifications will be fully met.  Because of their long experience in propeller production, Eliche Radice has developed a vast archive of information for improving future propeller lines under development.

Radice carefully considers the impact of a number of factors on efficiency and propulsion including number of blades, the ratio of pitch to diameter, and disk area.  They specialize in adjusting these properties in order to produce ideal outcomes in terms of cavitation, silence, vibrations, and efficiency and use the latest technological solutions and materials that become available for propeller manufacture.

With Radice boat propellers installed as an aftermarket solution, boating enthusiasts can count on a highly satisfying experience out on the water, whether they prefer to cruise on lakes, rivers, or seas.

Michigan Wheel Propellers

Boaters know the importance of boat propellers. No one wants a sub-par product, and no one wants to be stranded without the necessary gear when something inevitably goes wrong. If you are looking for a new propeller or you simply want to find a product to keep as a spare, it is important to find a product made by the right company. As such, it is always wise to go with a well-known name like Michigan Wheel for your boat propeller needs.

It is always important to look for boating products from a company that you can trust. Michigan Wheel is not new to the game of manufacturing top of the line boating goods, and it continues to innovate in the market. Unlike some companies, Michigan Wheel is not content to merely manufacture one great set of boat propellers and call it a day – instead, the company continues to find ways to stay relevant in an always changing market. Today’s boat propellers are far superior to those available in years past, and one can always count on the company to find ways to surpass even the best boat propellers on today’s market.

Michigan Wheel has long been one of the standard names in inboard boat propellers, creating several models of propellers for both commercial and consumer boats for over one hundred years. The boat propellers themselves are divided into several different classes, each perfect for use in different waterborne craft. Whether you need an inboard propeller for your sailboat or for a towboat, Michigan Wheel has the model to suit your needs. Each of these devices are made to the company’s exacting standards, made of quality materials and with the ability to withstand the rigors of repeated use. Michigan Wheel stands by each of these products, and the company’s global recognition speaks for their quality.

In addition to the inboard models, Michigan Wheel also has a number of outboard boat propellers. Like their inboard cousins, these models are made to the company’s exacting standards. These products are accurate and consistent, perfect for use as both spare boat propellers and as replacements for existing models. Michigan Wheel’s products can be used in many different circumstances, and there are boat propellers available for the budget of almost any boater. Whether you need a simple back-up or your are looking for something at the top of the line, there is a product available to suit your needs.

Whether you are looking for an inboard or outboard model, Michigan Wheel has the boat propellers that you need. They are constantly innovating in the market, and their long-time work in the industry can assure you that any product that you choose to purchase will be of high quality. If you need a replacement or merely wish to upgrade to something that is a bit better than what you have had in the past, you may want to take a look at one of the company’s many products. At the end of the day, choosing one of Michigan Wheels fine propellers is a great way to know that you will get to where you are going.

Teignbridge: A Quality Propeller Solution

When boating enthusiasts want to purchase an aftermarket propeller for their watercraft, they usually prefer to work with a company that has ample experience in issues related to marine propulsion.  For this reason, many such consumers opt to install Teignbridge propellers.  The Teignbridge name has been associated with marine technology since 1974 and in the decades since has grown to become a leading supplier of propulsion solutions not just in North America, the United Kingdom, and Australia, but also throughout the world.

Teignbridge props are a specialty of the company but so is stern gear.  Teignbridge provides its customers with top-notch customer support.  One aspect of this is their provision of customized services to clients who needs them.  Teignbridge props can be custom-made as desired by a company that offers the functions of both design and manufacturing in house.  This means that Teignbridge is able to exercise full quality control in their factory, which occupies 65,000 square feet and was built specifically for the purpose of marine gear manufacture.

Teignbridge has no fewer than five highly qualified naval architects working on staff to produce excellent quality propulsion solutions including surface piercing props as well as models designed to be submerged.  Their propeller solutions help vessels to optimize their performance, but there is more to a propeller than speed and acceleration.  Comfort considerations are also important; at Teignbridge, propellers are designed to feature reduced noise, with vibration virtually eliminated.  These props also attain better fuel economy than many in their class.

Advantages of Rolla Propellers

A propeller is one of the most important components of any powered motor craft, but a number of different manufacturers produce quality propeller equipment.  How is a boating enthusiast to choose the right propeller for his or her individual craft? For many boaters, the answer is to shop for Rolla propellers, a quality maker of marine propulsion equipment since the early 1960s.  Rolla props are characterized by quality and efficiency.

Each Rolla propeller is the result of a painstaking process that combines software capacity with the latest developments in propeller technology.  Even the combination of these elements does not add up to quality unless they are also coupled with vast experience.  Rolla has been producing propellers for decades and has amassed an unsurpassed bank of data regarding the optimization of propulsion in powered watercraft.

Rolla is proud of the RAMTA Dvora Mk.  III, which utilized Rolla products and went on to conduct its initial sea trials, meeting them with excellence.  The performance specifications required during this trial were extremely demanding, some of them requiring the craft to perform within a narrow range.  The craft experienced no more than a 1% deviation from any of the standards thanks to the quality Rolla products incorporated into its design.

Rolla specializes in producing propellers that are considered very fast, highlighting the reasons the company is a world leader in watercraft propulsion with a specialty in integrating propeller design with hull analysis.

Bruntons Boat Propellers

Experienced boating enthusiasts know that their choice of propeller is one of the most crucial decisions they will make about their watercraft.  For many such boaters, the choice is clear: they prefer to use Bruntons propellers.  Bruntons has been in the propeller business for more than a century, specializing in providing propellers for a wide variety of boating applications that includes both small craft as well as large yachts.  Their signature products include the Autoprop and the Varifold, an innovative folding type of propeller.

About the Autoprop

Bruntons Props makes many kinds of propellers, but one of their unique products is the Autoprop, which is now in use on thousands of sailing vessels around the world.  The Autoprop has been tested in both calm and stormy seas and provides cruising yachts with unparalleled advantages.  Most feathering propellers result in a reduction of drag, but the Autoprop stands out in this regard, featuring specially shaped blades that are capable of finding “perfect pitch” during motor boat use.

Boaters who use an Autoprop have noticed that “prop walk” is virtually eliminated with this system, which works in cooperation with any sails that are also helping to power a vehicle.  An Autoprop from Bruntons Boat Propellers therefore allows for higher speeds even while the motor is under less stress.  The ultimate result of this arrangement is a watercraft that has a longer range, and passengers and crew who are much more comfortable en route.

Two Popular Hung Shen Inboard Propellers

Available since the 1970s, Hung Shen propellers reflect sound design and manufacturing principles that allow them to meet the needs of boating enthusiasts.  Although Hung Shen props are available in several different lines, each of which is designed for specific uses, the most widely used series are the EP-4B and EP-3B lines.

The EP-4B

This line of inboard propellers from Hung Shen features four precisely engineered blades and is manufactured from either bronze or nibral.  Designed to provide ideal efficiency, the propeller offers boating enthusiasts a high level of durability.  This is due to its thick leading edge, which makes the blades sturdy and resistant to chipping and other damage.

This propeller is a favorite among several different classes of boaters, including owners of crafts designed for general pleasure boating uses and pilot boats; police launchers also use the EP-4B inboard propeller.  With four blades, vibration is considerably reduced.  This is one factor in the popularity of this inboard propeller.

The EP-3B

This propeller features three blades and is best used in boats whose typical speeds do not exceed 25 knots.  At these speeds, the EP-3B experiences high efficiency.  Like the EP-4B series of Hung Shen propellers, it features a thick leading edge that tends to be resistant to damage.

Available only in bronze, the EP-3B can be obtained in diameters ranging from 17 to 20 inches.  The various sizes weigh between 20 and 24 pounds.  While these specifications may suit your needs perfectly, there are more choices available in the EP-4B line.

Michigan Wheel Inboard Propellers: DJX, DQX, and M-500 Series

The public at large is most familiar with outboard propellers, but as boating enthusiasts know, inboard propellers are another popular choice for watercraft propulsion.  Michigan Wheel makes inboard propellers with three, four, and five blades.

The DJX and DQX Lines

Michigan Wheel inboard props in this series have three blades.  An outgrowth of the Dyna-Quad and Dyna-Jet propeller lines, DJX propellers are designed for situations where there may be limited clearance for the tip.  They also work well with high loads.  Propellers in this line have diameters ranging from 12 to 21 inches.  Some propellers in this series have blades with no cup, while others exhibit all the common amounts of cupping boating enthusiasts look for.

Michigan Wheel inboard props in the DQX series have four blades and range from 17 to 32 inches in diameter.

The M-500 Line

Many boaters prefer the M-500 inboard propeller from Michigan Wheel.  With five blades and diameters ranging from 22 to 44 inches, these inboard props provide a large blade area even in the smaller propellers in the line.  This allows for high performance, even for boats that cannot accommodate large propellers due to clearance issues.

The M-500 is particularly useful in certain situations where water flow towards the propeller is disrupted by the presence of obstructions such as hull appendages, dead wood, or large and / or heavy v-struts.  Indeed, in these situations the M-500 is one of the most popular choices available.  It also helps to reduce engine vibration, which many boaters consider its most advantageous feature. 

HyTorq Propellers: The MY-T3 and MY-T4 Series

HyTorq props have a well-deserved reputation for being high quality inboard propellers that can be used in a variety of applications.  Although HyTorq Propellers were originally manufactured by Hall & Stavert, a Canadian firm, they are currently part of the propeller line produced by Michigan Wheel Marine, which operates out of Grand Rapids.  Michigan Wheel acquired Hall & Stavert in the mid-1990s but remains committed to producing the HyTorq series, which is noted by boating enthusiasts for its level of craftsmanship — a level that has remained high since the propeller line changed hands.

The MY-T3 Propeller

This line of propellers from HyTorq features three blades symmetrically arranged around the hub; each of the blades offers a large surface area.  This design is geared toward improving watercraft performance, particularly in the area of maneuverability.  The MY-T3 is also well-suited for applications that involve high-powered modern engines.  Because of its versatility, then, this particular propeller series is suitable both for pleasure boating and for serious professional applications such as installation on rugged fishing boats.

The MY-T4 Propeller

These HyTorq propellers have four symmetrical blades instead of three.  Like the MY-T3 line, they are manufactured to exacting standards, which produce a high-quality inboard propeller.  The main difference in functionality for the MY-T4 is that a larger amount of blade area is provided in this line.  Benefits of the MY-T4 series include extreme smoothness of operation.

Both the MY-T4 and MY-T3 series of propellers are available in both bronze and nibral.