Loading the World's Largest Railway Ferry — 600m Freight Train on a 200m Ship
A freight train three times longer than the ship itself needs to board a 200-meter ferry. The crew has 90 minutes. Trains, trucks, oversized cargo — all simultaneously. Every six hours. Every day. Except Christmas.
Key takeaways
- MS Skåne is 200 meters long — the world's largest multi-purpose railway ferry, operated by Stena Line from Rostock. It carries up to 600 passengers, trucks and trailers, and approximately 1,200 meters of rail track capacity on the same crossing.
- Rostock is the only port in continental Europe where a complete freight train rolls directly onto a ferry and crosses the Baltic Sea — no unloading at the port of origin, no reloading at the destination.
- A 600-meter DB Cargo freight train — three times the length of the 200-meter ship — boards MS Skåne by being divided into sections of up to 180 meters, loaded track by track using a built-in elevator that moves entire wagon groups between decks.
- The full turnaround — unloading the arriving crossing's trains, trucks, and passengers, and loading the departing crossing simultaneously across six rail tracks and multiple vehicle decks — must be completed in 90 minutes. The crew describe this as 'quite tight'.
- The train elevator aboard MS Skåne was built before the ship itself: Stena Line constructed the elevator first, then built the entire 200-meter vessel around it — making the elevator the structural core around which everything else was designed.
- DB Cargo wagons arrive from across Europe carrying consumer goods, steel, paper, construction machinery, and newly built locomotives and passenger trains bound for Stockholm and Gothenburg. Stena Line handles all port-side shunting and logistics from the moment a train enters the port.
- MS Skåne operates every six hours, every day of the year except Christmas. While it runs, its four diesel engines are being replaced one by one mid-operation — no crossing is cancelled for the refit, which is designed to keep the vessel running for at least 10–15 more years.
- Every two years, MS Skåne enters a planned dry dock for 2–4 weeks — the only scheduled interruption to a route that otherwise moves Scandinavia's freight supply chain continuously, around the clock.
The Problem: How Does a 600-Meter Train Board a 200-Meter Ship?
The ferry is 200 meters long. The train waiting to board is 600 meters — three times the length of the vessel. The train needs to be on board within 90 minutes, simultaneously with trucks, trailers, and passenger cars loading onto other decks. This is not an edge case. This is the normal operation of MS Skåne, running every six hours from the Port of Rostock.
The answer to the geometry problem is a built-in elevator and six rail tracks. The 600-meter train is divided into sections of up to 180 meters. Each section is pushed or pulled onto a track, the elevator moves wagon groups between the upper and lower decks, and the process repeats — out, in, out, in — until all six tracks are loaded. Total rail capacity on board: approximately 1,200 meters across all tracks and decks combined.
Stena Line and MS Skåne: The Ferry That Connects Two Continents
Stena Line was founded in Sweden in 1962. Today it operates one of Europe's largest ferry networks — 20 routes across the North Sea, the Baltic, and the Irish Sea. Its most operationally unique route is the Rostock–Trelleborg crossing, the only place in continental Europe where freight trains sail across the sea.
MS Skåne is the vessel that makes it possible. At 200 meters in length, it is the world's largest multi-purpose railway ferry, capable of carrying 600 passengers, 3,295 lane meters of trucks and trailers, and 1,110 lane meters of railway track — all on the same crossing. The vessel is nearly 30 years old and is currently mid-way through an engine replacement programme designed to keep it operational for at least another 10–15 years.
90 Minutes, Six Tracks, Simultaneous Operations
The loading sequence follows a fixed logic. Operations always start from the outer tracks and work inward toward the middle — the reason is water level variation across the elevator's range, which means the outer tracks are sequenced first to give the middle tracks the correct timing. While the rail tracks are being worked, the vehicle ramps at the bow and stern are also in operation, moving trucks and trailers on and off Decks 5 and 7.
Deck 3 is the train deck. Above it are the vehicle decks for trucks and cars. Above those are the passenger cabins and restaurant. Every deck is being worked simultaneously. The 90-minute window is tight even in summer — in peak freight season, when all tracks carry freight trains and the vehicle decks are fully loaded with trucks and trailers, the margin is essentially zero.
Once loaded, the wagons are secured using a proprietary cufflinks system at each coupling point. Air is then pumped out of the wagons' brake lines, locking the brakes into the parked position. Additional lashing points are available if sea conditions require it.
The Train Elevator: Built Before the Ship
The detail that surprises even people who work at the port: the elevator was not designed to fit inside MS Skåne. MS Skåne was designed to fit around the elevator. According to Christopher Schnur of Stena Line, the elevator was built first, and then the entire vessel was constructed around it. The elevator is the structural core of the ship.
The elevator spans two deck levels. It holds a section of railway track — up to 100 meters on the platform itself — and moves entire loaded wagon groups vertically between decks. The upper tracks run at one deck level; the elevator drops loaded wagons down to the tracks below. Six tracks in total, approximately 1,200 meters of combined rail capacity, in a 200-meter ship.
DB Cargo: What Actually Travels
The wagons on the crossing belong to DB Cargo — some owned, some leased — arriving from across Europe. The cargo mix is broad: consumer goods, steel, paper, construction machinery. Stena Line handles the booking and all port-side operations from the moment a train enters the port boundary, including shunting, intermediate parking on port tracks, and loading sequence management.
The service also moves newly built locomotives and empty passenger trains heading to Stockholm and Gothenburg — rolling stock that cannot go by road and cannot be disassembled for shipping. Dangerous goods and waste are transported under the relevant regulatory classifications. The operation accepts single wagons as well as full consists — a customer shipping one or two wagons gets the same port-to-ferry handoff as DB Cargo running a full 600-meter train.
Every Six Hours: The Invisible Infrastructure of European Trade
Consumer goods shipped from a Swedish manufacturer to a German retailer, steel moving south from Scandinavia, paper heading north from continental mills — all of it moves through this one operation, in the Port of Rostock, every six hours. Without it, the supply chain between the Nordic countries and continental Europe stops.
The crossing repeats on the other side: when MS Skåne arrives in Trelleborg, Sweden, the same 90-minute loading sequence runs in reverse. The ferry turns and heads back to Rostock. Every six hours. Every day. Except Christmas. The only planned interruptions are the biennial dry dock periods — two to four weeks every two years — where tracks are repaired, hull work is done, and the vessel is repainted before returning to service.
Replacing Engines While the Ferry Keeps Running
MS Skåne has four diesel engines. Typically two run at any time, with a third on standby. The fourth — whichever is not currently needed — is being completely removed and replaced with a new unit. Once installed, the next engine enters the replacement cycle. The work happens during crossings: engineers deconstruct and rebuild propulsion machinery while the ship moves between Germany and Sweden.
The programme covers all four engines over the course of one operating year, without a single crossing being cancelled for the refit. When it is complete, a vessel that is nearly 30 years old will have four new engines and, by the assessment of those running the route, another decade or more of operational life on the Rostock–Trelleborg corridor.