täieliku veeväljasurve ja töövalmis mehhanismidega (vastavates süsteemides oleva õli, toite- ja jahutusveega) tühja laeva massi vahe tonnides, s.t. lasti, kütuse-, õli-, magevee- ja toiduvaru ning reisijate, meeskonna ja nende pagasi arvestuslik kogumass
the difference in tonnes between the displacement of a ship on summer load-line in water with a specific gravity of 1,025 and the total weight of the ship, i.e. the displacement in tonnes of a ship without cargo, fuel, lubricating oil, ballast water, fresh water and drinking water in the tanks, usable supplies as well as passengers, crew and their possessions
