Tokyo - Mitsui O.S.K. Lines (MOL) announced that it participated in a demonstration test of ship class survey using aerial drones to inspect an MOL-operated coal carrier in service, along with Nippon Kaiji Kyokai (ClassNK), Hitachi Systems, and Mitsui Co.
According to MOL, the demonstration test included a simulated ship inspection inside the cargo hold and ballast tank (which holds water used to balance the ship when it is not carrying cargo), using video shot from an aerial drone. The test verified the effectiveness of using drones to monitor rust, corrosion, and the presence of cracks, it said.
ClassNK has conventionally conducted visual inspections while ship management companies handle maintenance and inspection works by assembling scaffolds during dry docking.