A destroyer is thousands of systems across a dozen disciplines that must integrate — and stay integrated — across a class that lasts decades. PurpleBrain ties together the specs, standards, change orders, and decisions that connect the disciplines — cross-referenced to the drawings by number and revision — so the cross-discipline questions no single drawing holds get answered, with the document behind every answer. It runs on the yard's own systems. Nothing leaves the yard.
The knowledge to build, integrate, and sustain a destroyer is scattered across hundreds of vendor packages, thousands of drawings, evolving specs and as-builts — and the deepest of it lives in the heads of veteran engineers who are retiring.
Scroll to stack the disciplines: bare hull, then propulsion, distribution, piping, damage-control boundaries, and the combat system on top — each one wiring into the layers beneath. Then watch what one change touches across all of them.
Naval architecture sets the frames, the waterline, the shape everything else must live inside — the baseline every other discipline writes its specs and change orders against. Those references are the first thing in the layer.
The engines, the shaft line, the screws — sized to the hull. When a change touches the hull, the shaft-alignment dependency is one someone already wrote down — the spec, the change order, the engineer's note that ties them. That record is in the layer, not just in an engineer's memory.
Miles of cabling and pipe runs snake the length of the ship, penetrating frames and bulkheads. Each run crosses a dozen compartments — and every penetration is a decision that another discipline will need to know about.
Watertight and fire boundaries divide the ship into zones that must hold under casualty. They cut across every run beneath them — which is exactly why a change to one run can quietly invalidate a boundary.
Radar faces, the mast, weapons, sensors — the reason the ship exists, resting on every layer below it for power, cooling, and structure. One ship, one connected system — not a stack of separate drawings.
Watch the blast radius light up: a piping run and a cable tray flagged for reroute review, a damage-control boundary to revalidate, and three vendor packages to notify — each surfaced from the specs and change orders that reference this penetration, cited to its drawing number and revision, and held for a qualified engineer to sign off. That interplay is the digital twin of the ship's knowledge.
"If we reroute this cable run around the new sensor foundation, what does it affect?" — answered from the electrical, structural, and damage-control specs, the vendor packages, and the change orders that set the current configuration, each pointing to the drawing number and revision to open next.
Every response quotes the exact clause of the standard or the as-built it rests on, and cites the affected drawing by number and revision — pointing you to the sheet, not paraphrasing what's on it. When the record conflicts, it holds the conflict for review instead of guessing. A qualified engineer signs off before it becomes the yard's answer.
The waivers, the trade-offs, the "why we did it that way on the last hull" — captured into the same queryable layer alongside the drawings, so the class keeps its reasoning long after the person who held it moves on.
Nothing becomes the ship's record until a qualified engineer who knows the system signs off.
The physics-and-CAD twin — the one that simulates the hull and the systems — is Siemens and Dassault territory. PurpleBrain is the layer alongside it: the queryable, cited record of what the ship is and why it was decided that way.
This is defense work — ITAR-controlled, classified in places, and your data cannot leave your infrastructure. So it doesn't. PurpleBrain deploys on-prem or fully air-gapped, on the yard's own systems and the AI you already run behind your boundary. There is no PurpleBrain server holding your drawings, and no drawing, spec, or change order ever leaves the yard.
The same production system proven on 20,000+ documents at a U.S. industrial equipment manufacturer — pointed at your yard, inside your boundary.
Book a working session — point us at one discipline's drawings, the specs they answer to, and a change order that rippled further than anyone expected. We'll show you what a cited knowledge layer can trace across it, inside your boundary.
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Tell us which disciplines are hardest to reconcile, where the knowledge lives, and the cross-discipline question your team keeps chasing down by hand.