Mariners Log goes beyond scheduled maintenance. Traditional systems help you plan and record maintenance tasks, while Mariners Log uses operational data, machine learning, alerts, and insights to help identify developing issues earlier and support smarter fleet decisions.
The all-in-one system for running your vessel or fleet
Manage maintenance, compliance, inventory, logs and projects from one platform, powered by predictive analytics, automated vessel data and practical operational insights.
Predictive Maintenance
Identify developing faults, analyse machinery trends and adjust maintenance before failures occur.
Planned Maintenance
Manage scheduled, recurring, one-off and running-hour maintenance across vessels and equipment.
Alerts
Surface machinery, maintenance and operational issues, with clear priorities and recommended actions.
Automated Data Collection
Capture machinery and operational data directly from onboard systems and sensors through installed hardware.
Compliance
Manage certificates, inspections, records and upcoming obligations from one place.
Inventory
Track spare parts, stock levels, critical items and maintenance-related usage across vessels and storage locations.
Fuel Efficiency
Monitor fuel use, speed, distance and operating conditions to identify inefficiencies and improve vessel performance.
Fleet Management
View vessel status, maintenance performance, alerts, compliance, and operational trends across the fleet.
Logs and Checklists
Replace paper records and spreadsheets with structured, customizable, digital logs, inspections and routine checklists.
Projects
Manage refits, repairs, dry-docking and larger maintenance programmes through connected tasks and progress tracking.
Frequently asked questions

How is Mariners Log different from traditional Planned Maintenance Systems (PMS)?
What is predictive maintenance?
Predictive maintenance uses data from equipment, operations, logs, and other sources to identify patterns that may indicate a developing fault. Instead of only maintaining assets on a fixed schedule or after failure, it helps teams act earlier and reduce unexpected downtime.
Can I just put my data into ChatGPT or Claude instead?
General AI tools can help analyse information you manually upload, but they are not designed to continuously monitor operational data, track asset trends over time, trigger alerts, manage maintenance workflows, or recommend actions from live and historical operating conditions.
Mariners Log is built for a specific job: predicting failures and recommending actions that help assets run more efficiently. Its machine learning module is trained around this purpose and becomes more reliable, smarter, and more accurate as more data is collected over time.
What data does Mariners Log use for predictive maintenance?
Mariners Log can use available data such as machine readings, digital logs, maintenance history, fuel use, weather, tides, oil analysis, manufacturer recommendations, and crew observations. The more quality data available, the stronger the insights can become.
Do I need to replace my existing maintenance system?
Ideally, but not necessarily. Mariners log does work alongside existing systems and workflows. It can support your current maintenance processes while adding operational intelligence, data visibility, alerts, and predictive insights.
How does Mariners Log help prevent breakdowns?
Mariners Log analyses trends across operational and machinery data to identify abnormal patterns and early warning signs. This helps teams investigate developing issues sooner, plan maintenance earlier, and reduce the risk of costly failures.
Can Mariners Log help reduce fuel burn?
Yes. Mariners Log analyses fuel use alongside operating conditions and asset performance to help identify inefficiencies. This can support practical recommendations that help reduce fuel burn, lower operating costs, and improve emissions visibility.
How accurate are the machine learning predictions?
Accuracy depends on the quality, quantity, and consistency of available data. Mariners Log has been developed since 2021, and its machine learning models continue to improve as more operational data is collected and analysed over time.
Is Mariners Log only for large fleets?
No. Mariners Log can support single assets, small operators, and larger fleets. The platform is designed to scale as operations grow, helping teams improve visibility, maintenance planning, and operational efficiency across their assets.
Can Mariners Log use our existing historical data?
Yes, where available and compatible, historical maintenance records, logs, fuel data, oil analysis, and operational data can help provide a stronger starting point. Historical data can support trend analysis and improve the foundation for predictive insights.
Personalized logs & checklists
Build your day logs and machinery running logs to suit your requirements. You can add, remove and name machinery, and arrange the flow to be more efficient. As a bonus, send us your current logs and we will set them up for you!
Flexible & simple
Mariners Log can be used in conjunction with existing planned maintenance systems. Our user-friendly logs and checklists will keep you up to date with the strict ISM & ISPS standards.
Designed for engineers & management
Be in the loop with your fleet's engineering department by having access to all Permits to Work, Checklists and Logs. There is no limit on fleet size.
Mariners Log Engineering
The ultimate super yacht management system