Why a Ship's Speed Is Measured in Knots: Actual Knots, in a Rope
Sailors threw a piece of wood into the sea, counted the knots in the rope behind it, and timed it with an hourglass. That is why speed is in knots.
Making Sense of Vessel Data
Performance, compliance, and the engineering behind both. We build vessel-data systems for shipowners and operators — and we publish what we learn from them.
Latest Insights
Papers, articles, and talks from our work on vessel data.
The Circle Painted on Every Ship Because One Man Lost His Temper
The circle on a ship's hull is there because one angry member of Parliament fought owners who overloaded ships for the insurance money. It still sets how deep a ship may load.
Energy-Saving Devices: Collecting the Propeller's Leftovers
A propeller leaves a third of its power behind in the water: spin in the slipstream, a vortex off the hub, and an uneven wake. ESDs are fixed steel aimed at those named losses: 1–5% each, forever, if the device matches the hull.
Who We Are
Blue Autonomy is an Athens-based maritime technology company. We help shipowners and operators turn raw vessel data into something they can act on — and we publish our methods, findings, and mistakes openly rather than treating them as trade secrets.
Our Values
Environmental Stewardship
We work to reduce the maritime industry's carbon footprint with solutions that optimise vessel efficiency and cut CO₂ emissions — measured honestly, not just reported.
Openness and Transparency
Clear methods and honest numbers are the foundation of every relationship — with clients, and with readers of our published work.
Collaboration
We work alongside crews, technical teams, and management as partners, fitting our tools into real daily operations rather than the other way around.
Innovation Through Technology
We apply AI, IoT, and high-frequency data analytics where they genuinely help — and we explain how they work instead of hiding behind buzzwords.
Operational Excellence
Our systems are built for reliability and precision, with 24/7 access to the performance metrics that matter for staying ahead of regulatory and market change.
Science, Made Accessible
Behind every recommendation sits real physics and statistics — and we explain both in plain language. A result you can't understand is a result you can't trust, on the bridge or in the boardroom.
Contact Us
If something you read here maps to a problem on your fleet, write to us — we answer ourselves. Email info@blueautonomy.gr or call +30 6984585624.