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Turning Point Express Mach3
Aggressive rake and cupping characterize the Turning Point Express Mach3 , which is cast in a proprietary stainless steel alloy that contains over 20 percent more chromium than other brands, giving it an extra-glossy finish and impeccable rust resistance.
- Left and right-handed options
- Tuned vents for good acceleration
- Noisier than other models
You’ll want to seriously consider the Quicksilver Nemesis if you plan to tow skiers or tubers with your vessel. With four blades for increased grip in the water, it can achieve top-shelf torque distribution and mid-range speed.
- Resists corrosion
A great choice for offshore fishers with larger boats, the Solas Rubex L3 provides stable propulsion whether you find yourself in rough waters or calm seas. It is forged from crack-resistant, stainless-steel and can be used interchangeably with a variety of engine types.
- Large diameter provides good thrust
- For 135 to 300-horsepower motors
- No hub kit included
If you plan to cruise over shallow water, having a Motorguide Machete III installed can help you navigate past seaweed and other aquatic flora. It easily outperforms other models designed for trolling motors in both speed and acceleration.
- Tapered hub design
- Affordable enough to buy a spare
- Blades made of plastic
Selecting The Best Prop Is Crucial But Easy With Mercury Marine
Boat dealers and service experts will tell you that incorrect prop selection is a leading cause of poor engine and boat performance. The Mercury Propeller Selector tool on MercuryMarine.com helps boaters select the best propeller model and pitch for their boat. The Prop Selector is essentially a digital catalog that aids in selecting the most appropriate propeller.
To find your propeller on MercuryMarine.com, click on Propellers, then click on Mercury Prop Selector. Once there, follow the simple steps to select your boat type, boat usage and engine information, and the Selector will provide a recommended prop family. The Selector then helps you determine the correct pitch of your propeller.
To find your closest Mercury dealer for assistance in selecting the best propeller for your boat, click on Find A Dealer on MercuryMarine.com and follow the easy steps.
PROP SELECTOR Q & A
What does the Prop Selector do?
The Mercury prop selector asks the questions that a typical prop guy will ask when someone says they need a new prop for their boat. The tool uses that information to provide a good starting point for prop selection based on your input on boat type, type of use, engine/drive type, etc. Just like working with a prop expert if you have existing performance data, the tool can also take that into account and be more accurate with its selection .
How does the Prop Selector benefit boaters?
The prop selector works equally well for all types of boats.
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Is A Stainless Steel Prop Always The Best Choice
Many people think a stainless steel propeller is always the best choice. But for a lighter and smaller boat, that may not always be the case. As you saw, many aluminum props are extremely high quality. Aluminum props can deliver better hole shot and increase speed. They give great fuel economy and have a wide pitch range. Whether you want a lower pitch or something higher, an aluminum prop could work fine.
The other big consideration is price. Aluminum props are cheaper. That price difference can be very significant.
Prop Antifouling Research Spins Into New Territory
A cheap, effective antifouling paint for a propeller is as rare as a good pun. The coating must not only ward off all marine growth, it must present a smooth slick surface that can stand up to the constant water friction when the boat is under power. And in the case of a folding prop, the coating must also adhere in nooks and crannies and, in some cases, even withstand metal-to-metal contact. These demands are well beyond the reach of any run-of-the-mill marine coating. Thus, our search for-wait for it-a prop paint.
Yes, you can paint a bronze propeller with conventional, copper-based hull paint, but it wont do much good, since the more noble metals in the bronze prop will eventually waste away the copper biocide. Dont even think about painting an aluminum outdrives or prop with a copper paint, or the reverse will occur-the more noble copper will attack the outdrive alloys. Even with the right preparation, regular bottom paint tends to wear quickly on a prop due to increased water friction.
Paints for Props and Running Gear
For the past few years, Neeves has been trying to find a paint for props, saildrives, and running gear that matches the life of the antifouling on his hull. The seasonal sailor who hauls and paints every year doesnt need this level of performance, but for a year-round sailor, a good multi-season prop paint can yield big savings.
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Find A Replacement By Oem Part Number
If you know the OEM part number and basically just need to find the replacement, use the Prop Finder tool. Or search the pages and PDF guides below by your OEM part number to find a suitable replacement. Give us a call at 1-800-998-9508 or Intl. +1-206-780-5670 if you dont find what you need and our boating experts will quickly help you locate a replacement.
- OEM Cross-Reference Table for Mariner, Mercury Outboard & Mercruiser Stern Drives
- OEM Cross-Reference Table for Mercury / Michigan Wheel / Quicksilver / Turbo / Turning Point
How To Find Your Best Propeller
The Prop on the Boat Goes Round and Round
Propellers are the final gear in your boats driveline. Having the correct prop on your boat can make the difference between happy boating and costly floating. Because props come in a huge variety of shapes and sizes it can be a tricky task to identify the one that works best on your boat. Here are the steps that I recommend to both find your propeller and understand how it works.
Information gathering is the first step in finding your best prop. This includes the make, model and year of your boat and engine. Also note the make and size of your present prop . Then consider how you use your boat. Is it for family day trips, long cruises, or tow sports? Finally, record the maximum RPMs that you can achieve with your existing prop at wide open throttle.
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How To Select A Propeller For Your Boat
Selecting the right boat propeller is an important factor in maximizing your boat’s performance. Determining the correct size and style of boat prop will keep the engine operating within its recommended RPM range and allow it to apply its maximum horsepower to the water. One of our goals at Overton’s is to help make choosing a boat propeller an easy process. We have a huge selection of props and prop accessories at great prices! Optimize your performance with the right propeller using the information below or take advantage of our propeller selector tool for help in choosing your prop.
MATERIAL – We offer propellers made of composite, aluminum, and stainless steel. Composite props offer good performance, are durable, and inexpensive. They also offer some protection for your lower unit during a prop strike. Aluminum props are the most common and are suitable for the widest range of applications since there are so many models and styles available. Stainless steel props offer the highest performance and best durability.
Select the prop size that lets your engine operate at WOT in the correct RPM range.
NUMBER OF BLADES – When the number of blades are changed, diameter and pitch may require adjusting to keep the RPMs in the proper range. For most purposes, 3 and 4-blade boat propellers can be used interchangeably on outboards and sterndrives without much of a change in performance.
Maximizing Horsepower Minimizing Rpm
The right propeller for your boat and engine combination is based in part on the wide-open throttle operating range for your specific engine. This information is an intersection of horsepower and RPM and can be found in your owners manual.
An optimal outboard propeller will maximize your boats performance while allowing your engine to operate in the recommended RPM range. The correct propeller will prevent the engine from over-revving and facilitate maximum horsepower with minimum RPM.
An outboard engine under load should reach the manufacturers recommended RPM at WOT, usually expressed as an RPM range. Your optimal propeller will deliver acceptable acceleration and top speed while still allowing your Yamaha outboard to reach its recommended revs at WOT.
If you get this relationship wrong, premature engine damage is too often the result.
The 10 Best Boat Propellers
This wiki has been updated 10 times since it was first published in February of 2019. There is no one-size-fits-all when it comes to boat propellers. Having the right fit for your vessel is integral to ensuring you get the most out of your motor. Most times, the factory-installed model isn’t ideal, and installing an after-market option can mean a noticeable increase in acceleration and top speed. Our guide will help you sift through the ocean of choices to find the perfect match.When users buy our independently chosen editorial choices,we may earn commissions to help fund the Wiki.
This wiki has been updated 10 times since it was first published in February of 2019. There is no one-size-fits-all when it comes to boat propellers. Having the right fit for your vessel is integral to ensuring you get the most out of your motor. Most times, the factory-installed model isn’t ideal, and installing an after-market option can mean a noticeable increase in acceleration and top speed. Our guide will help you sift through the ocean of choices to find the perfect match.When users buy our independently chosen editorial picks,we may earn commissions to help fund the Wiki.
Boat Propeller Fit Guide
If youre buying a new propeller for your boat, you may simply need a replacement for a prop you damaged, you may be trying to address a performance issue or you may simply want to gain better fuel economy. Whichever the case, we can help you find the right propeller for your needs.
Choosing the best propeller for your boat is a key factor in performance and choosing the wrong prop can lead to poor fuel efficiency and issues with engine performance including slower speed and increased wear and tear on your engine.
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Too Much Or Not Enough Pitch
Propeller pitch is the distance the prop moves forward in rotation. Some propellers have a constant pitch, which is the same at all points from the leading edge to the prop blades trailing edge. Ideally, a motor with a wide-open throttle range of 5000-5800 rpm will reach 5400 rpm with the boat running wide open and trimmed out for optimal performance, a full load of fuel and water and an average passenger load.
If the propeller pitch is too low, the engine may run over the desired WOT rpm, leading to engine damage. If the prop pitch is too high, the motor may run below the WOT range. Boaters refer to this as lugging the engine. Not enough pitch can cause too much stress on the engine and gearcase components.
To Pitch Up Or Pitch Down
This is an integral question that must be answered before you buy the new propeller. As explained, by increasing your prop pitch, you will be effectively decreasing the engines rpm and vice versa.
Since the general rule of thumb is that every two-inch increase in pitch decreases the engines rpm by about 400 revolutions, if you find that your boat is under revving, then you might want to consider getting a propeller with a lower pitch and vice versa. If your boats issue is that its over-revving, then getting the 21 pitch propeller might be the best solution.
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The beauty of all this is that your boat manual will have the desired specifications, but you could also ask your mechanic or even your dealer to advise which prop pitch would be the perfect solution for your specific boat. Just remember, one of the most important considerations here is your performance goal. What is it you want the boat to do exactly?
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Choosing The Right Pitch
If you are currently satisfied with the performance of your engine, we recommend to choose the same pitch. However, if you wish to change the performance you can consider a different pitch. For example if your engine currently makes too much or too few RPM , or if you want to use your boat for a specific purpose .
A good indicator for selecting the optimal pitch is the RPM your engine makes at ´wide open throttle´ . Each engine has a prescribed ´optimal´ RPM that it should be making at wide open throttle. This differs per engine but often it is between 4500 and 6000. You can check your manual, or check this RPM Range Chart for the most common engines.
If currently your RPM is too high, you may consider a larger pitch that will improve your top speed. If the RPM is too low, the engine is not reaching its full potential because of a too large pitch. In this case choosing a smaller pitch can result in better acceleration and higher top speed .
If youre changing pitch on a recreational boat, remember that each inch of pitch translates to a difference of approximately 200 to 300 rpm. Lowering the pitch will increase rpm and choosing a larger pitch will reduce the rpm. For example, going from a 23 pitch to a 21 pitch will increase engine rpm by about 400 to 600. For smaller horsepower engines this difference is usually bigger: one pitch can already make such a difference.
NEW: for direct advice on the optimum pitch!
What Is The Best Prop For A Pontoon Boat
Most pontoon boats use aluminum propellers. However, stainless steel propellers are stronger, stiffer and more efficient, and in many cases may prove more satisfying than aluminum props. It’s also good to have older composite or plastic blades around as a prop replacement in the case of an emergency.
Moreover, what Prop should I use for my boat?
To test the prop, run the boat at WOT and observe the maximum engine RPM on a tachometer. If the RPM is below the recommended operating range, switch to a propeller with lower pitched blades. If the RPM is higher, switch to a propeller with higher pitched blades.
Also Know, how do you know what Prop I need? The size of a propeller is defined with two sets of numbers, diameter and pitch, with pitch always following the diameter.
In this way, is a 3 or 4 blade prop better?
A 3 blade propeller usually offers top speed performance while a 4 blade propeller provides maximum thrust and smooth cruising operation. Four blades have some features of their own, though. They often provide more lift at the stern which will help accelerate the hull, especially if it is stern heavy.
Will a 4 blade prop make my boat faster?
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What Material Is Best
Most outboards and IOs are originally sold with aluminum props, which are inexpensive and repairable. Inboards use three- and four-bladed props of bronze, or a nickel-bronze-aluminum alloy. Replacement props for IO or outboard boats are available in aluminum or stainless steel. These materials compare as follows:
Aluminum is the most common, least expensive material. Suitable for most outboard and sterndrive applications.
Stainless steel offers a performance advantage over aluminum due to stiffer, thinner blades and more advanced designs. Best choice at speeds over 50mph, or if your boat is running over oyster beds or sandbars regularly. Stainless costs more but is five times more durable than aluminum. Stainless props can be repaired, at a higher cost, to like-new condition, while repaired aluminum will suffer from metal fatigue and a loss of strength.
Michigan Wheel Apollo Xhs
Whether you’ve got an outboard or a sterndrive, you can’t go wrong with the Michigan Wheel Apollo XHS , which boasts a mirror-like polish and a wide blade area. Its ability to absorb the impacts and stresses of shifting gears helps protect your lower unit in the long run.
- Cad-designed blade geometry
The squeeze casting process used to produce the Turning Point Hustler ensures that this aluminum four-blade is free from air bubbles, voids, and other defects that could affect performance. On top of that, a five-step, powder-coated finish guarantees a long service life.
- Can improve fuel efficiency
- Reasonable price for the quality
- May cause a slight drop in rpm
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