A TEAM of Hydrex diver/technicians from the company's headquarters in Antwerp have performed a propeller blade cropping on a 190-metre container bulker berthed in Hamburg.
Two parts of the tip of one of the four propeller blades were damaged and needed to be cropped to restore the propeller's efficiency and balance, a company statement said.
After the equipment arrived at the vessel's location the team started the operation with a detailed survey of the affected propeller blade. The team then used the information acquired during the inspection to calculate and determine the correct measurements needed to modify the trailing edges of the propeller blade.
Next the divers cropped the blade and ground its edge to give it the correct radius. The opposing blade was modified using the exact same cutting line, to give the propeller back its balance.
When the cropping was complete, the Hydrex technicians buffed the blades to make sure that any remaining loss of efficiency would be minimal.
The repair took less than a day, preventing delay to the vessel's schedule.