FPP & CPP PROPELLER MAINTENANCE, REPAIR & OVERHAULS
HOW BARTECH PROPULSION CAN HELP WITH PROPELLER REPAIR
Regardless of the make or type of your CPP or FPP propellers, our propulsion engineers can perform maintenance, overhauls or repairs in dock, in-house, afloat or submerged.
With over 30 years experience and with mechanical and electrical service engineers at our disposal, we can deploy at short notice to any location worldwide.
For more information, use the form lower down the page or ring +441206 645 065.
Our Propeller Repair Services
Propeller repair and maintenance service:
Marine propellers are a crucial component to the success of any ship. They help with propulsion and steering, which is why they must be in good shape before you take your boat out on the water.
What are marine propellers?
Marine propellers are corrosion-resistant because of their material composition. They are made operational directly in seawater and use an alloy that includes aluminium, stainless steel. These two elements are known for being highly resistant to acids. Like those found at sea level and other chemical agents prevalent on vessels operating off coastlines or near rivers where they could pick up industrial waste runoff from industries upstream (Aluminium Association).
What are difference between FPP and CPP propellers?
Fixed Pitch Propeller (FPP)
The propellers on a ship are usually fixed pitch, meaning they have the same number of teeth throughout their axial length. This helps ensure there's enough torque for movement even when another blade in the rotation is not generating any power due to wind resistance or other factors affecting its effectiveness as an engine (like ships passing each other). The term FPP comes from "fixed" and "pitch." It refers to how these circular blades twist along with themselves at different angles depending upon speed requirement. This results in forwarding motion per revolution. So you see one visible spot move relative to those who don't use theirs against gravity - think screws.
Controllable Pitch Propeller (CPP)
Controllable Pitch Propeller (CPP), also commonly known as Variable Pitch propellers. The twist or pitch in root section blades' orientation concerning their angle makes a relative difference. It thus can change all other blade sections, which were at previous angles. They attain new ones. In short: you can control how much each individual blade goes up or down by changing its roots'.
How FPP and CPP propellers can be maintained
Propellers don't last forever, but they can be extended with care.
Avoid Contact With Bottom Surfaces
If your boat's propellers never hit anything, then you're less likely to get their lifespan shortened. A depth finder is an essential piece of equipment for avoiding contact with surfaces. It'll let you know when there are rocks or other obstacles in the water that might damage them if run aground on them during a ride.
Scrub It Down
After each ride, always wash the propeller with water and mild detergent solution to remove any salt or oil residue. Once clean, wipe down all blades using a lubricant such as CRC 6-56 that protects against corrosion from chemicals in stormy weather conditions.
All boat propellers experience wear from the water, and even minor scuffs can develop into major cracks. Inspect your outboard's blades for any signs of damage, such as abrasions or nicks, before they become too hazardous to use. If you only find scratches on one side of an object like a blade, then take it apart using very fine-grit sandpaper. This should smooth down any sharp edges caused by cuts made during construction.
How FPP and CPP propellers can be overhauled
A propeller repair is a fix-it job for your boat's propellers. It can be used to address minor damage, such as indentations or dings in the metal of the blades due to collisions with other objects on the water. Minor repairs are much less expensive than an overhaul and will not alter any part of the blade itself. Instead, they focus on fixing what has already been damaged by repairing it from within. Using special tools that drill into each small nick before filling it in with new material made to last through another collision or scrape against seaweed or rocks below the surface.
A more major fix, or a complete overhaul of the marine propellers, is necessary if large gaps in the blades cannot be repaired with simple fills and patches. Overhauls can also restore blades to their former glory after many years of use by completely reconditioning them from top to bottom. This type of service will ensure that your boat's propellers stay in tip-top shape through all kinds of weather conditions without worrying about their durability.
When deciding between a propeller repair and an overhaul, the choice largely depends on how severely damaged your blades are. A simple patch job will suffice for most boats if there is no damage beyond scratches or nicks in the paint. On the other hand, if you feel like your boat's propellers could use some TLC after many years of service, ensure they get all the necessary attention with a thorough refurbishing.
Get in touch today to get a quote or ask a question.
If you have a question about your propulsion system or would like a quote for a part, overhaul or service, just fill out your details on this page and we will contact you or you can contact us using the details below.
+44 7731 591517