Flat bottom, vertical sides and curves were found heavily fouled with barnacles. Propeller was also found fouled with various types of barnacles. Bow thrust propeller was found entangled with a great mass of mooring ropes, which were cut off and removed by hydraulic cutter.
CASE STUDY DESCRIPTION
The underwater cleaning of flat bottom, vertical sides and curves was carried out by hydraulic brush kart system.
The propeller polishing was carried out by 3M diamond disc pads.