
MV, MT, MS — Every Commercial Ship Prefix in 5 Minutes
MV, MT, MS, LNG/C — every commercial ship prefix explained with real examples from fixture recaps and Bills of Lading. Practical guide for shipping professionals.
Expert guides on voyage planning, route optimization, and shipping industry analysis.
Maritime Insights is the analytical layer of Fairway ETA. The calculator and data hub price the next voyage; this section reads the conditions around it — why a freight rate is moving, how a regulatory cycle reshapes routing decisions, where the market and the physical fleet have drifted out of sync.
The work is organized into eight categories — Freight & Chartering, Vessels & Fleet, Trade & Insurance, Fuel & Emissions, Market, Geopolitics, Routes, and Regulation. Category detail, voice notes, and editorial standards are documented at the bottom of this page.

MV, MT, MS, LNG/C — every commercial ship prefix explained with real examples from fixture recaps and Bills of Lading. Practical guide for shipping professionals.

A modern ship's hull is standardized worldwide — same steel grades, same welding rules, same safety systems. But the tools and fittings inside the engine room still carry the fingerprints of whichever national industries supplied its engines and components. Why is one layer fully unified and the other one not?

Every large commercial ship returns to a repair yard on a 5-year regulatory cycle. In 2026 more than 12,000 vessels are due — and half of all dry-dockings happen in just three countries.

VLCC capacity: 200,000–320,000 DWT, roughly 2 million barrels per voyage. Suezmax: 120,000–200,000 DWT. Aframax: 80,000–120,000 DWT. Each tanker size class is defined by a physical constraint — a canal width, a port draft, a terminal limit. This guide covers every class from MR to ULCC: tonnage, dimensions, cargo capacity, typical routes, and per-barrel economics.

The world's largest ships can't use the world's busiest strait. A shortcut has a volcano in the middle. The straight line on the chart isn't the shortest distance. Ten routes that look irrational on a map — and the constraint that makes each one the only rational choice.

Class certificates appear on every vessel document but rarely get explained. A working tour of what a classification society does, why losing class effectively grounds a ship, who the 12 IACS members are, and how class differs from flag state and P&I.
Freight & Chartering covers TCE, Worldscale, FFAs, demurrage, charter parties, and the Baltic indices. Vessels & Fleet covers ship types, fleet structure, shadow fleet, and yard capacity. Trade & Insurance covers bills of lading, P&I clubs, classification societies, and war risk insurance. Fuel & Emissions covers bunker prices, ECA zones, carbon capture, and the energy transition. Market reads freight rates, index divergence, and shipping cycle diagnostics. Geopolitics tracks how chokepoint events become freight costs. Routes covers route economics, distance comparisons, and ETA methodology. Regulation covers IMO frameworks, MEPC outcomes, trade policy, and compliance impacts.
Standards are kept on the about page. The short version: we cross-verify against primary sources before publishing, we paraphrase rather than quote at length, and we date articles so corrections can be tracked. If a number turns out to be wrong, we update the article rather than letting the original stand.