Synchronizing Vessel Data…
High-precision cargo displacement calculation via 6-point optical draft readings and dockwater density calibration.
Preselect Draft Survey in the requisition portal with immediate surveyor dispatch.
Request This ServiceImmediate confirmation & operations desk file creation
Draft surveys are the internationally recognized, legally admissible method for determining the metric tonnage of dry bulk cargoes (manganese, bauxite, clinker, wheat, fertilizers). V-Marine surveyors execute precision optical waterline readings, dockwater density hydrometer sampling, and quarter-mean hydrostatic corrections compliant with the UN ECE Code of Uniform Standards.
Forward, Midships, and Aft draft marks on both port and starboard sides.
Hydrometer sampling at multiple depths (surface, mid-draft, keel) to establish true dockwater density.
Sounding all ballast tanks, void spaces, bilge wells, and freshwater/fuel tanks.
Establish official bill of lading cargo tonnage and commercial invoice settlement.
Prevent cargo short-landing claims and protect against vessel overloading penalties.
Reading waterlines before cargo operations and calculating initial displacement.
Applying stem/stern trim corrections and hog/sag keel deflection compensations.
Repeating the process post-loading to determine net cargo weight loaded or discharged.
Pre-fills all parameters in our multi-step requisition system for swift surveyor mobilisation.
2–4 Hours per reading session (Initial & Final sessions)
Need urgent surveyor mobilisation in West African waters?