Feathering Yacht Propeller
Zhejiang Yuan Ding Marine Equipment Co., Ltd., with over two decades of dedicated history, has been singularly focused on one thing: crafting high-quality marine propellers. Since our inception, we have been committed to delivering exceptional Fixed Pitch Propellers (FPP) and Controllable Pitch Propellers (CPP) to meet the diverse needs of our global clientele.
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Why Choose Us
Our Factory
With a team of 130 dedicated professionals, our 16,000 square meter workshop annually produces 2,000 tons of copper alloy propellers, committed to providing efficient and reliable marine propulsion solutions.
Custom Service
With our advanced casting process, Yuan Ding Marine delivers fully customized propellers, whether you need one unique design or consistent quality across a large batch.
24/7 Customer Support
Our round-the-clock customer support ensures quick responses to inquiries, from initial consultations to after-sales services. We're here whenever you need us.
Advantages of Feathering Yacht Propeller
First, they are positive in their function. The torque of the shaft opens the blades, even if it is encrusted in marine growth it will open. Folding propellers use centrifugal force to open, meaning the shaft has to be rotating before there is enough force to open the blades, this causes quite a lot of shock load to the drive train.
Second, a feathering propeller has amazing reverse. As the blades rotate 180 degrees in ¾ turn of the shaft a feathering propeller has the same efficiency in reverse as in forward. This increase in efficiency decreases prop walk and improves control in reverse. A fixed propeller cuts with the trailing edge and against the cupping on the blades, it loses about 80% of its efficiency in reverse. Similarly, the twist of a folding propeller's blade tries to fold the blades in reverse, presenting a less than efficient attach angle.
Third, a feathering propeller is a low drag propeller. On an average 36 foot boat, a fixed two-blade would create around 70 pounds of pull if it were attached to a scale. A two blade feathering Max-Prop would only create 4 pounds of pull. Quite the difference, think of pulling a 5-gallon bucket behind your boat, that would be a drag.
Product Specification
We offer the following Product specifications：
|
Type |
3 blades. Left or right hand rotation |
|
Diameter |
16" (406mm) and 18" (457mm) |
|
Pitch Range Degrees |
16 degrees to 20 degrees. Reverse 20 degrees |
|
Pitch Range |
10" to 15" for 16" prop |
|
Castings |
AB2 Bronze to Marine standard |
|
Blades |
Dupont Zytel Black |
|
Nose Cone and Nut |
Dupont Delrin (Acetal) |
|
Spring & Cap Screws |
Stainless steel |
|
Blade Retaining Pins |
Stainless steel |
|
Shaft Diameters |
1.25" and 1" or SAE 16/32 Spline for all Saildrives. |
|
Shaft Taper |
SAE taper per ft = 0.7500 in +/- 0.002 (1/16" per inch) |
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Shaft Nut Thread |
As requested. Saildrive standard M16, AB2 Bronze |
|
Keyway |
1/4" square, parallel key |
|
Maximum Power |
50 hp |
|
Weight |
3.5 Kg |
Use of Feathering Yacht Propeller
With a feathering propeller, you can fine-tune the blades to your exact preference. The propeller comes with many gears, allowing you to adjust the pitch. Some sailors find it handy to make these adjustments themselves and see it as a significant advantage. However, keep in mind that you need to haul out the boat to make a minor adjustment and then need to relaunch the boat to evaluate the effectiveness of the change. If the modification doesn't enhance the performance, you'll have to repeat the process until you get the desired result.
All the mechanics and gears mean that a feathering propeller requires more maintenance. There are more components that can break, and it needs to be lubricated at least once a year. Some sailors find comfort in being able to adjust the blades themselves but imagine having to haul out your boat every time you need to make adjustments. The costs can quickly add up.
The blade on a feathering propeller is completely flat. A flat blade is essential to achieve as low drag as possible. The blades of a feathering propeller cannot fold in the way those on a folding propeller do; instead, they remain extended like a fixed propeller. However, they can rotate to align with water currents, thus creating less drag than a fixed propeller. While you can modify the pitch of the blades, their flat design combined with their rotational capability, essentially means you can't fully optimize the blade profile.
Installation: Feathering propellers can be easily installed or pulled in just a few minutes underwater. This can avoid expensive boat hauling fees when your propeller needs maintenance or to be replaced.
Adjusting Pitch: Adjusting propeller pitch can be done while the propeller is installed. This can be an expensive process for fixed blade propellers and propeller pitch is very important to the longevity of your propulsion engine as well. Your engine needs a proper load to ensure it is running in the proper rpm range. Propeller size and pitch make up an important part of this equation.
Reduced Wear: Lastly, there are benefits such as enclosed gear drives that avoid fouling and the feathering propeller eliminates vibrations and gear box wear and tear because the propeller isn’t turning while under sail.
FAQ
We're professional feathering yacht propeller manufacturers and suppliers in China. If you're going to buy high quality feathering yacht propeller, welcome to get quotation from our factory. Also, custom service is available.
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