Propeller cleaning & polishing

When the reduction in ship performance is associated with the condition of the ship hull, the effect of the propeller surface condition is often overlooked. Nevertheless, the effect can be significant.

The effect of the propeller surface condition is less important than the hull condition, but significantly more important in terms of energy loss per unit area. In economic terms, high return of a relatively cheap investment can be obtained by propeller polishing.

When considering the propeller surface condition a distinction has to be made between fouling and surface deterioration coupled with an increase in propeller roughness.

Propeller polishing will not only save fuel but also a well-cleaned propeller gains speed.
The best efficiency on your fuel investments. Therefore a well maintained polished propeller is a cost and time effective asset for a vessel, a low investment with high return.

The trick in establishing the best practices for propeller polishing and maintenance

is to work out a routine for propeller cleaning which permits rapid, easy propeller cleaning which is frequent enough to minimise the fuel penalty from propeller roughness and fouling and which results in the minimum removal of propeller material in order to achieve a smooth, fuel-efficient surface.

Propeller polishing is very important to get the most of your engine, it’s the quickest way to reduce fuel consumption.

Propeller polishing is applicable for all vessels and vessel ages.

The propeller may be polished twice a year. This is either performed by a diver while the ship is berthed and loading cargo or when the ship is in dry-dock. The fuel cost for the ship will be reduced from improved propeller efficiency since the power loss in the system will be decreased.

For more info on propeller cleaning & polishing during ship operations contact FN Diving.

Underwater propeller polishing

One of the most effective ways to improve vessel performance without taking the ship out of service. A fouled or rough propeller creates drag, increases fuel consumption, reduces speed, and puts unnecessary load on the engine and propulsion system. Professional underwater propeller polishing restores a smooth hydrodynamic surface, helping the vessel run cleaner, more efficiently, and with less resistance through the water. The result is lower fuel costs, better propulsion efficiency, reduced vibration, and stronger overall vessel performance. Regular propeller polishing is not just maintenance, it is a direct way to reduce operating costs, protect the propeller surface, and minimize the risk of future repair or replacement.