Propeller Polishing on Oil Products Tanker

Polishing propeller with fixed blades with a total diameter of seven meters and five blades. The maximum working depth was 14.9 meters at the deepest-reaching blade.
A propeller polishing can reduce the fuel consumption with several percents and is a good investment for the owner. Saving money, time and the environment.
The extra "propeller" mounted on the boss weakens the hubs vortex and decreases fuel consumption with up to 5 % or an average of 2 %. Paying it self off in one year.