HULL SURVEY – PRINCIPAL DIMENSIONS AND DISTORTION

General During construction, the shipyard regularly measures the length, breadth, twisting of blocks, the flatness of plates etc. in order to build an accurate ship to the design dimensions. Purpose of measurements The keel alignment and measurements of principal dimensions are to be carried out to verify how accurately the ship form is maintained during … Continue reading HULL SURVEY – PRINCIPAL DIMENSIONS AND DISTORTION

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HULL SURVEY – HYDROSTATIC AND WATERTIGHT TEST

There are many survey and test items during construction. The tests in this section are, however, some of the most important of these survey items. The general requirements of hydrostatic and watertight tests or Structure test and Leak test. General Requirement  In the classification survey during construction, hydrostatic tests, watertight tests etc. are to be … Continue reading HULL SURVEY – HYDROSTATIC AND WATERTIGHT TEST

HULL SURVEY – FINAL INSPECTION

General All the blocks are joined together in the building berth and gradually each section, such as the double bottom and hold structures, is completed. This chapter deals with the inspection of each compartment in the building berth. Scope of inspections The scope of inspection of items relating to the hull structure of ordinary ships … Continue reading HULL SURVEY – FINAL INSPECTION