Block outfitting through sea trials
Commissioning software for a newbuild where hundreds of systems have to be proven before the flag will let it sail.
A newbuild moves from steel blocks to a system-complete vessel to a ship that has proven itself at sea, all against a fixed delivery date the yard has already sold. Deskely holds every system, tank and machinery item in one register with a completion order that reflects how a ship is actually built and tested.
- Scope
- Hull, systems, machinery
- Parties
- Yard plus owner plus class
- Order
- Block, system, trial
- Gate
- Sea trials and delivery
Choose your project type
The problem
Every block, every subcontractor, and none of it adds up to a completion status.
A single vessel has dozens of blocks, hundreds of tanks and thousands of pieces of machinery and outfitting, each tracked by a different trade in a different spreadsheet.
Nobody on the yard floor can answer the only question that matters as sea trials approach: which systems are actually proven, and what is holding up the rest.
Deskely puts every hull, tank and system in one register with one status model, so trial readiness is derived from signed records instead of assembled from foreman reports the night before.
Setting up the register
Hull blocks, tanks and systems are separate structures with separate gates.
Structural blocks, tank testing, piping systems, electrical distribution, machinery and outfitting each reach completion on their own path, and every system crosses several blocks before it is whole.
General arrangements, system diagrams and equipment lists are parsed into a reviewed register, so every tank, valve and machine carries its drawing reference from day one.
That structure is what makes it possible to close out a block and commission a system while the rest of the hull is still being outfitted.
Execution
Tank testing, cable pulling and hook-up each leave a signed record behind.
Technicians work on board with a tablet: tank tightness and structural tests, cable pulling and termination, piping hydrotests and equipment hook-up captured where the work happens.
Photos and readings are mandatory where they matter, which stops a compartment being marked complete on optimism ahead of a trial.
Punch raised during any of these activities is categorised immediately as blocking or non-blocking for the next milestone.
Trials and delivery
Harbour trials, sea trials and delivery are signed against a defined record set, not negotiated on the quay.
The harbour acceptance and sea trial certificates list exactly which records permitted them and which punch items were carried, with owners and dates against every one.
That is what turns delivery into a documented event between yard, owner and class rather than a dispute settled in the final week.
Carried punch stays live in the same register through the guarantee period until it is closed.
Handover to the owner
The vessel is delivered to a crew that will operate it for twenty-five years.
The owner inherits the asset base along with manuals, spare parts references, test history and class correspondence. Assembled at the end, that pack is always incomplete.
Because the dossier builds continuously, the as-built and class handover package per system is an export rather than a project of its own.
Every signature keeps a name, role and timestamp, which is what makes the pack useful during the first class survey.
Weight control and the inclining experiment
The inclining experiment is one afternoon that either confirms eighteen months of weight control or exposes it.
Every outfitting decision on a newbuild — a heavier paint spec, an owner-furnished item swapped late, cabling routed differently than the estimate assumed — moves the vessel's lightship weight and centre of gravity a little further from the number the naval architect used to close the stability book.
By the time the inclining experiment is scheduled, class and the naval architect expect a weight report that reconciles actual installed weight against the estimate, item by item, not a spreadsheet reconstructed from purchase orders in the final week before the test.
Deskely holds outfitting and equipment weights against the same tags used for commissioning, so the weight and centre of gravity report going into the inclining experiment is drawn from what was actually installed and signed for, not from what was ordered.
How it runs
From first steel to a delivered vessel.
Newbuild projects reward structure set up before the first block is erected, because trials are where every documentation gap becomes visible at once.
- 01
Break the vessel into systems
Hull blocks, tanks, piping systems, electrical and machinery, each with its own completion path.
- 02
Parse the equipment set
General arrangements, system diagrams and equipment lists drafted into a reviewed tag register.
- 03
Template the record set
Installation, hydrotest, hook-up and functional records defined once per equipment and system type.
- 04
Give subcontractors scoped access
Each trade completes its own records against its own tags, without seeing or editing anyone else's.
- 05
Gate trials on system completion
A system cannot go forward to sea trials until its prerequisite records and tests are signed.
- 06
Certify and deliver
Harbour and sea trial certificates issued from signed records, with punch categorised and dossiers exported to the owner.
FAQ
Questions about Newbuild vessels scopes.
Keep reading
Marine and shipyard commissioning
The full sector view: hull and system registers, sea trial evidence, punch lists and redelivery certificates.
Read moreCertificates
Mechanical completion, harbour and sea trial certificates issued from signed records.
Read moreAI drawing parser
General arrangements, system diagrams and equipment lists turned into a reviewed asset register.
Read moreOther marine and shipyard project types: Vessel conversions and module integration, Drydock and repair periods, Cruise and ferry refits, Naval and defence vessel completions, LNG/LPG carriers and gas systems, OSV, PSV, CSV and walk-to-work vessels, Dual-fuel, scrubber and emissions retrofits, Shipyard facility and drydock infrastructure, Commissioning through sea trials to delivery.
