Crude oil tanker operators, product tanker technical managers, and marine superintendent directors face relentless structural seaworthiness and class survey mandates: managing VLCCs, Suezmax, Aframax, and chemical parcel tankers through mandatory IACS Enhanced Survey Programme (ESP) cycles, 5-year intermediate and special drydock overhauls, and United States Coast Guard (USCG) Title 46 CFR hull inspections. When ultrasonic thickness measurement (UTM) gauging sheets, ballast tank coating condition ratings, sacrificial zinc anode wastage ledgers, sea chest valve overhauls, and drydock repair specifications live across disconnected shipyard spreadsheets and paper binders, tanker fleets face catastrophic steel wastage structural failures, severe USCG Port State Control detentions, and budget-breaking drydock timeline overruns. Fleet Rabbit delivers specialized marine tanker hull inspection and drydock-scheduling software, unifying steel thickness gauging ledgers, ballast tank coating condition mapping, running-hour drydock project Gantt tracking, and offline ship-to-shore synchronization into one comprehensive maritime platform. Eliminate hull survey blindspots, streamline Class special surveys, and maintain verified structural integrity across open-ocean voyages with zero satellite connectivity. Book a Demo to see Fleet Rabbit tanker hull inspection software in action.
MARITIME APEX HORIZON HEROTanker Hull Inspection & Drydock-Scheduling Software
Manage ultrasonic thickness gauging (UTM), track ballast tank coating degradation, schedule 5-year intermediate/special drydock work packages, and ensure continuous USCG and Class structural compliance across tanker fleets.
Why Legacy Spreadsheets Fail Tanker Hull Inspections
Manual shipboard steel logs and static shipyard spreadsheets leave tanker operators vulnerable to unmonitored plate diminishing, unexpected steel renewal scope creep, and class drydock audit failures.
Ballast Tank Coating Breakdown & Anode Wastage
Double-hull water ballast tanks suffer from accelerated microbial and saltwater corrosion; static spreadsheets miss epoxy coating blistering and depleted zinc anodes, leading to premature structural plate wastage.
Unorganized Ultrasonic Thickness Gauging (UTM) Data
Thousands of UTM steel thickness measurement points trapped in physical paper binders prevent superintendents from forecasting critical bottom plate and longitudinal frame steel renewals before drydock tenders.
Drydock Scope Creep & Schedule Overruns
Unrecorded sea chest valve pitting, rudder stock bearing clearances, or tailshaft seal leaks discovered after de-watering blow drydock budgets by 40% and delay tanker commercial trading charters.
Open-Ocean Ballast Tank Inspection Dead Zones
Shipboard officers completing close-up structural inspections during ballast ocean transits face zero cellular or satellite connectivity in tank holds; cloud-only tools freeze and lose photo-verified condition logs.
How Fleet Rabbit Powers Tanker Hull & Drydock Management
Fleet Rabbit synchronizes hull structural condition ledgers, Class survey countdown timers, drydock work package builders, and ship-to-shore sync into one maritime platform. Request a 1-on-1 walkthrough.
Ultrasonic Steel Thickness & Diminishing Engine
Log and visualize plate thinning across keel strakes, side shell plating, and deck longitudinals with automated alerts when steel wastage approaches Class renewal limits.
Ballast Tank Coating Condition Mapping
Standardized IACS coating condition rating forms (GOOD/FAIR/POOR) covering transverse bulkheads, stringers, zinc anode wastage percentages, and edge breakdown photos.
Drydock Specification & Scope Builder
Consolidate open defect requisitions, sea chest overhauls, propeller polishing, tailshaft surveys, and steel renewal tonnages into standardized shipyard tender packages.
In-Tank Offline Mode & Micro-Sync
Inspectors log coating ratings and attach high-resolution crack/corrosion photos inside double-hull spaces offline; data auto-syncs to shoreside servers via marine VSAT.
Rudder, Tailshaft & Sea Chest Tracking
Track historical rudder pintle clearances, Simplex tailshaft seal renewals, ICCP hull cathodic protection logs, and high/low sea chest overboard valve pressure test certificates.
Enhanced Survey Programme (ESP) Vault
Centralize Class ESP Executive Hull Summary reports, Condition Assessment Scheme (CAS) certificates, bottom survey in drydock records, and UWILD diver reports.
Statutory, Flag State & IACS Enhanced Survey Compliance
Fleet Rabbit’s tanker hull inspection and drydock workflows are structured to meet statutory international maritime regulations and IACS classification rules across major governing bodies.
Full alignment with IMO Resolution A.1049(27) (International Code on the Enhanced Programme of Inspections During Surveys of Bulk Carriers and Oil Tankers - 2011 ESP Code) and SOLAS Regulation XI-1/2.
Supports USCG Title 46 CFR Subchapter D (Tank Vessels - Inspection and Certification), Drydock and Underwater Gear examination cadences (Subpart 31.10-20), and Underwater Survey in Lieu of Drydocking (UWILD) rules.
Pre-aligned with OCIMF SIRE 2.0 structural inspection verification questions, Tanker Management and Self Assessment (TMSA 3) Element 4A (Hull Integrity and Drydocking), and CDI-T chemical tanker standards.
Supports IACS Unified Requirements UR Z10.1 (Hull Surveys of Oil Tankers), 5-year Special Survey steel renewals, Intermediate Bottom Surveys, and Ballast Tank Coating Performance Standards (IMO PSPC).
Tanker Hull & Drydock Software Comparison
A focused capability comparison for tanker technical directors evaluating hull structural integrity, IACS ESP documentation, and drydock project management. Competitor data sourced from public records as of 2026. Request a technical comparison.
| Capability | Fleet Rabbit | Amos / DNV ShipManager | Samsara | Generic Tools |
|---|---|---|---|---|
| Pricing (per vessel) | $5/month | $500–$2,500/mo ($$$$) | $27–60/month | Variable ($$$) |
| IACS ESP Coating Condition Rating (GOOD/FAIR/POOR) | Native & automated | Module upgrade required | Not available | Manual file drive |
| UTM Thickness Gauging & Wastage Diminishing | Native & automated | Complex separate add-on | Not available | Manual spreadsheets |
| Drydock Scope Builder & Clearance Logs | Pre-built & specialized | Enterprise module only | Generic vehicle only | Not available |
| In-Tank Full Offline Mode & Micro-Sync | Full offline mode (VSAT ready) | Legacy database sync | Limited | Limited |
| Free Trial | 14 days, up to 3 assets | Demo only | Demo only | Demo only |
| Contract Terms | Monthly or annual | Multi-year enterprise lock-in | 3-year minimum | Annual / Multi-year |
5-Step Implementation Roadmap
Fleet Rabbit provides an accelerated deployment program engineered for tanker fleets, transitioning your hull management from fragmented shipyard sheets to automated structural compliance in two weeks.
Vessel Hull & Tank Layout Import
Import tanker particulars, double-bottom/wing ballast tank structural layouts, previous drydock reports, and baseline UTM gauging records.
ESP Survey & Drydock Cadence Setup
Configure automated 90/60/30-day countdown alerts for 2.5-year Intermediate Surveys, 5-year Special Drydock Surveys, and UWILD milestones.
Coating & Anode Inspection Checklist Setup
Activate standardized digital inspection forms for IMO PSPC coating condition ratings, sacrificial zinc anode wastage, and sea valve pressure tests.
Shipboard & Shoreside Rollout
Equip Chief Officers, Chief Engineers, and shoreside Hull Superintendents with the intuitive offline-ready mobile and desktop application.
Live Structural Integrity Board Go-Live
Activate real-time tank coating degradation maps, UTM steel diminishing ledgers, drydock scope builders, and 1-click Class ESP reports.
2-Week Fleet Deployment Plan & Results
Modernize marine tanker hull structural inspections and drydock project management with zero disruption to active cargo voyage charters. Request an onboarding plan.
Week 1: Setup & Data Migration
- Migrate historical UTM steel thickness tables, ballast tank coating logs, and previous drydock repair ledgers
- Set automated 90/60/30-day renewal triggers for USCG Drydock Examination and Class Special Survey windows
- Configure user permission roles for Master, Chief Officer, Chief Engineer, and shoreside Hull Superintendent
Week 2: Shipboard Pilot & Go-Live
- Conduct quick 20-minute shipboard officer training on completing in-tank offline mobile inspections and photo uploads
- Validate micro-sync data transmission over shipboard VSAT and fleet satellite links
- Activate central shoreside dashboard with live hull structural condition indicators and drydock tender builders
Protect Tanker Fleets from Steel Wastage and Drydock Budget Overruns
Track ultrasonic steel thickness, automate IACS ballast tank coating ratings, and streamline drydock project management across global tanker fleets. Start today at $5/asset/month with a 14-day free trial.
Real-World Operational Results
Proven operational outcomes reported by international crude tanker operators and chemical parcel fleet technical managers. Request the full tanker hull case study.
Drydock Scope Optimization — 10-Tanker Crude Fleet
An international crude tanker operator suffered recurring 20% to 35% shipyard budget overruns on 5-year special surveys due to unexpected ballast tank steel renewals discovered after docking. Fleet Rabbit centralized UTM diminishing charts and coating condition photos, allowing superintendents to accurately pre-tender steel renewals, saving $240,000 across two dockings and reducing off-hire shipyard duration by 5 days.
Class Condition Elimination — 16-Parcel Chemical Fleet
A chemical tanker operator experienced frequent Class Condition of Class (CoC) remarks during intermediate surveys due to unorganized zinc anode replacement records and unmonitored sea chest valve pitting. Fleet Rabbit structured underwater gear PM tracking and ballast tank inspection logs, eliminating 100% of Class structural remarks and accelerating oil major vetting approvals.
When preparing a double-hull tanker for a 5-year special survey drydocking, you need exact steel diminishing data and clear ballast tank coating ratings before opening shipyard tenders. Fleet Rabbit gave our Chief Officers an intuitive offline tool for tank inspections and gave our shoreside superintendents complete visibility into every square meter of steel, cutting drydock surprises to zero.
Frequently Asked Questions
Upgrade Your Marine Tanker Hull & Drydock Management in Less Than 2 Weeks
Track ultrasonic steel thickness, automate IACS ballast tank coating ratings, and ensure seamless Class drydock survey readiness at $5/asset/month with a 14-day free trial.
