Abstract:
In this study, tonnage measurement was calculated according to both international and national rules which are applied by Turkish Administration. In this way, application of both methods was compared. It was explained why national tonnage is different from international tonnage. Advantages and disadvantages of both methods were discussed. Tonnage measurement of a bulk carrier, a passenger-car ferry and a wooden commercial yacht was calculated to show the differences according to types of ships. Simpson's first method was used for calculations. Plans of the ships were attached the file called ”œprojeler” on CD. Keywords: Gross tonnage, Net tonnage, Simpson's first method, Tonnage certificate, International Maritime Organization, Tonnage 69.
