The deadweight of the ship when light, i.e. with stores; fuel, fresh water, crew and ballast on board, but no cargo.
Ubunzima bomthwalo wenqanawa xa ikhaphu-khaphu umzekelo ngcino, izibaso, amanzi omthombo, abasebenzi, ibhalasti esenqanaweni kodwa akukho mthwalo.