CoatingPassport · schema v1.1Demo · Naval hull

DEMO-NAVAL-F-04 — Coating Passport

In-water hull survey of a frigate-class vessel by inspection-class ROV. Same CoatingPassport schema as commercial vessel-hull, with naval-domain severity calibration: biofouling threshold tightened from 15% to 15% (was IMO BR threshold), signature-coating breakdown at 5% triggers drydock scheduling. Defensive posture only — observation + audit, never autonomous action.

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Asset

Asset ID: DEMO-NAVAL-F-04
Type: Naval hull
Material: coated_steel
Operator: Demo Defense
Last drydock: 2024-08

Inspection

Timestamp: Tue, 28 Apr 2026 09:00:00 GMT
Footage source: rov
Duration: 105 min
Frames analyzed: 189,000
Operator tier: compliance_bundle
Model version: hullproof-vlm-v2.1.3

Findings summary (3)

critical

severe

moderate

minor

Findings detail

biofouling

confidence 92%487 framesimg-quality 87%severe

Biofouling estimated 22% coverage across midship vertical sides. Above naval 15% threshold — performance penalty affects top-speed reserve and acoustic signature.

Location: Vertical sides, midship, 40-80 m from bow (60, 0, -4)

Recommended action: Hull cleaning prior to next operational deployment. Review anti-fouling system performance vs spec.

coating breakdown

confidence 88%287 framesimg-quality 83%moderate

Signature-reducing coating breakdown estimated 6% in aft 1/3 zone. Above naval 5% threshold; affects radar-cross-section and acoustic-signature performance.

Location: Aft 1/3, signature-coating zone (110, 0, -3)

Recommended action: Schedule drydock signature-coating reapplication within 6 months. Coordinate with anti-fouling system replacement for efficiency.

anode depletion

confidence 91%87 framesimg-quality 88%moderate

Anode set 48% depleted. Within expected progression for 20 months since last drydock.

Location: Stern frame anodes, port + starboard (125, 0, -6)

Recommended action: Plan anode replacement at next drydock.

CountEmissions EU — condition evidence

Instrument: Regulation (EU) 2026/1030
Methodology: EN ISO 14083:2023 (well-to-wake)
IMO biofouling rating: —
Condition-attributable power excess: attach a PerformanceValue to quantify

Supporting evidence for a primary-data fuel/intensity figure — not the ISO 14083 calculation and not a replacement for EU MRV / FuelEU monitoring. A fouled hull burns more fuel per tonne-km; this is the verified condition that defends a lower self-reported intensity.

Compliance

EU AI Act class: high_risk_ai_system
Review workflow: Pending

Applicable standards

• NATO STANAG 4154 (Common standards for shipborne equipment)
• NAVSEA Standard Items (US Navy ship repair)
• MIL-STD-2035 (Nondestructive examination acceptance criteria)
• BR 3033 (Royal Navy general regulations for ships)
• Forsvarsmateriell tekniske krav

Interoperability

Cognite CDF compatible: Yes
OSDU mapping: —
Veracity export: Not exported
Knowledge graph: Not generated

The same JSON powers Cognite CDF Asset+Timeseries, OSDU exports, RDF knowledge graphs, and MCP-tool calls from agentic systems. PDF is a renderer of this; never the source.