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Not every ship needs dry-docking just because a survey is due. UWILD services in Nagoya Port exist for the vessels that qualify, and this page helps owners and managers decide whether theirs does.
Eligibility is set by the class society, not by the contractor. As a rule, younger ships with a good coating record and no open Hull defects are the best candidates. Bulk carriers, bauxite carriers, tankers, container ships and car carriers are all surveyed this way. Older ships, or ships with heavy coating breakdown, are more likely to be sent to a dock. Ask your class office early, because the answer shapes the whole voyage plan.
A dry-dock visit means yard fees, tug and pilot costs, off-hire days and often a ballast leg to reach the yard. A UWILD job in Nagoya is done alongside or in the anchorage area, in one working day for most ships. The Ship stays in service, and the only extra cost is the dive team and the report. We do not quote figures on this page because every ship is different, but the largest saving is usually the off-hire time.
Honesty helps here. If the Hull is badly fouled, if the surveyor wants to see something that can only be examined out of the water, or if repairs need dry working conditions, dry-docking may be the only route. We would rather tell you that at the planning stage than waste a day alongside. Even then, an in-water survey can give you a clear picture beforehand, so the dock work is planned with facts instead of guesses.
Send us the ship's particulars and the last bottom survey report. We review them against the class requirements, give you a plain yes or no on UWILD feasibility, and price the dive if it is a go. Our team holds ClassNK and ABS certification, and we work with surveyors of other IACS societies as well. Most owners get an answer from us within one working day.
Before choosing between UWILD and dry-docking, a technical manager can ask a few plain questions. When was the Hull last cleaned and coated? Are there open conditions of class below the waterline? Has the Ship had any berth contact or grounding since the last dock? Does the next voyage allow a day alongside in Nagoya? If the answers are favourable, UWILD is worth discussing with the surveyor.
Take a nine-year-old bulk carrier with a sound coating and a clean damage record, due for her intermediate bottom examination. Dry-docking would mean a ballast voyage to a yard and several days out of service. A UWILD in Nagoya Port, done during a normal cargo call, keeps her earning. The saving here is not a trick of accounting. It is simply the days the ship stays at work.
Q1. What ship age is commonly accepted for UWILD?
Many class society rules accept UWILD for ships up to about 15 years old with a sound coating, but the final decision belongs to the class society and can differ by ship type.
Q2. How long does a dry-dock bottom survey usually take compared with UWILD?
A dry-dock stay for a bottom survey commonly takes 3 to 7 days. A UWILD job in Nagoya Port normally takes about 1 working day.
Q3. What is the typical cost of avoiding dry-dock?
Take a ship earning USD 15,000 per day: 3 to 7 days in dock means roughly USD 45,000 to 105,000 of lost earnings before yard costs. Actual figures vary with the charter rate.
Q4. How often must a ship’s bottom be examined?
Class rules based on IACS requirements call for two bottom examinations in any 5-year class period, with an interval of no more than 36 months between them.
