Draft Survey Calculator carries a draught survey all the way through — from the six draft readings to the cargo figure — and produces a certificate you can send.
Built for chief officers, port captains and independent cargo surveyors who need a defensible number rather than an estimate.
WHAT IT CALCULATES
• Six draft readings — forward, midships and aft, port and starboard
• Corrections for the position of the draft marks
• Apparent trim and corrected trim
• First and second trim corrections
• Correction for water density
• Deductibles: ballast water, fresh water, fuel oil, diesel oil, lubricating oil and others
• Net displacement, the ship's constant, and cargo quantity
Enter the vessel's hydrostatic particulars — displacement, LCF, TPC and MTC ±0.5 m — and every stage is carried through at full precision, to the number of decimals you choose.
THE CERTIFICATE
The report lays out the whole draught survey: initial and final surveys together, every intermediate value, and the resulting tonnage. Export it as a PDF and send it to the master, the agent or the charterer without leaving the ship. Put your own letterhead on it — company name, contacts, memberships and logo — and add the port, the cargo and the working times for each pair of surveys.
IT WORKS WITHOUT A SIGNAL
Everything runs on the device. No account, no registration, no sign-in, no server. In a hold, alongside, or at anchor with no coverage, the app behaves exactly the same as it does ashore.
Your surveys stay on your phone. Nothing is uploaded, and a report leaves the device only when you send it yourself.
YOUR VESSELS
Keep the ships you work on — name, IMO number, year of build, flag, light ship weight, summer deadweight, breadth moulded, LBP and thickness of keel — so the particulars are already waiting the next time you board. Add a photograph to tell sister ships apart at a glance.
FREE, AND WHAT THE UNLOCK ADDS
Use it free for one vessel and one complete initial-and-final survey cycle, with the full calculation engine at full precision. The arithmetic is never reduced in the free version.
A single one-time purchase — not a subscription — adds unlimited vessels and surveys, and PDF export of the certificate on your letterhead. The report screen itself is free, letterhead included: check your own numbers before you buy. You buy it once and it stays yours.
LANGUAGES
English, Spanish, Ukrainian and Russian. Survey terminology stays in English throughout, as it appears on the paperwork.
Questions and corrections: Draft_Survey@and.od.ua
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