Stena Superfast X (Vessel Profile)

Profile of the Stena Line Dublin - Holyhead vessel STENA SUPERFAST X. Includes historical overview, technical data, photographs, and deck plan.

IMO Number: 9211511

Constructed by: Howaldtswerke-Deutsche Werft AG (HDW) #360


Stena Superfast X approaches Belfast on her maiden arrival. Stena Line

Photo: STENA SUPERFAST X approaches Belfast on her maiden arrival in Northern Ireland.  Stena Line

Overview of Stena Superfast X

STENA SUPERFAST X is Stena Line’s latest permanent addition to the Irish Sea fleet, and was built as a sister ship to STENA SUPERFAST VII and VIII.  Her regular route is from Holyhead in Wales to Dublin, however in February 2016 she was temporarily deployed to Belfast in order to cover the refit/dry-docking period of the regular Belfast to Cairnryan vessels.

Stena Superfast X.  Stena Line.

SUPERFAST X was the final of 4 identical ships delivered to Superfast in 2001 and 2002 by the same yard (the other of the 4 ships in the Superfast VII class was launched as SUPERFAST IX and is currently Marine Atlantic’s ATLANTIC VISION, operating in Canadian waters). STENA SUPERFAST X is unique among the four Superfast VII class ships in having no tips on her funnel wings.  This is because they had to be removed as part of the sale arrangement between Superfast and Veolia/SNCM, as Superfast were fiercely protective of their brand at the time – the funnel wings where a key part of the Superfast branding.

SUPERFAST X has had a very different career to the other Stena Superfast vessels, having now operated for no less than 7 different operators in the Baltic, North Sea, Mediterranean, English Channel, and finally the Irish Sea.  Although Stena purchased the then DIEPPE SEAWAYS in January 2014, she had an existing charter with DFDS which didn’t expire until November that year.  On expiry of the DFDS charter DIEPPE SEAWAYS went to the Nauta ship repair yard at Gdynia, Poland for conversion to make her more suitable for replacing both STENA NORDICA and HSS STENA EXPLORER on the Holyhead to Dublin/Dun Laoghiare routes (the Dun Laoghaire route closed during 2014).  This included extensive work to her interior accommodation, alterations to both the bow and stern loading arrangements (which had been adapted for the English Channel service by SeaFrance), new propeller blades, and a technical overhaul to bring the ship up to Stena standards.  The resulting interior layout is somewhat different to that of STENA SUPERFAST VII and VIII, reflecting the longer voyage by the provision of a number of cabins on deck 8.

DIEPPE SEAWAYS is seen arriving at Dover, 20th April 2013. Copyright © Ian Boyle 2013.
DFDS Seaway’s DIEPPE SEAWAYS is seen arriving at Dover, 20th April 2013. Copyright © Ian Boyle 2013.


It is expected that STENA SUPERFAST X will be replaced in early 2020 by the first of Stena’s new E-Flexer ships, currently under construction in China.  At present it is unknown whether STENA SUPERFAST X will stay in the Stena Line fleet afterwards, or be offered for sale/charter.

Stena Line E-Flexer #1 is steel ready at the AVIC Weihai Shipyard in China. © Stena RoRo.
Stena Line EFlexer #1 is steel ready at the AVIC Weihai Shipyard in China. © Stena RoRo.

Deck plan

Photograph (slightly retouched) of the deck plan onboard Stena Superfast X, February 2016. Copyright © Steven Tarbox
Photograph (slightly retouched) of the deck plan onboard Stena Superfast X, February 2016. Copyright © Steven Tarbox

Look Inside

An interior gallery of STENA SUPERFAST X can be found at the dedicated “look inside” feature here.

Technical Information



Stena Superfast X

IMO Number



Knud E Hansen A/S and Deltamarin

Building Yard

Howaldtswerke-Deutsche Werft AG, Kiel, Germany

(Now part of ThyssenKrupp Marine Systems)


Det Norsk Veritas

DNV GL 1A1 Car Ferry A TMON

Hull Number


Keel Laid






Conversion Yard

Stocznia Remontowa Nauta S.A., Gdynia, Poland.

Conversion completed

22/2/2015 (left Nauta for Holyhead)


Stena North Sea Ltd.

(Operated by Stena Line Limited (Irish Sea South))


Northern Marine Ferries Ltd.

In service (original)


In service (Stena Line)


Call sign (Stena)


Length overall (Between perpendiculars)







Gross Tonnage




Machinery (after Stena conversion)

•   4 x Wärtsilä-Sulzer NSD 16ZAV40S main engines producing 11520kW each (cylinder diameter: 400mm, stroke: 560mm) manufactured by Wärtsilä-NSD in Italy, coupled to 2x 5.2m KaMeWa propellers via 2 x Schelde DH4500 dual input single output gearboxes with 2 speed power take-off for shaft generator. 2 x ABB AMG 500 L6 2100kVA shaft generators.

•   3 x MAN B&W 8L28/32H diesel engines, producing a total of 1,848 kW each @ 720 rpm and one Caterpillar 3508DI-SCAC diesel engine producing 968kW @ 1800 rpm.  3 x ABB and one Caterpillar electric generators.

•   3 x  2000mm KaMeWa 925kW bow thrusters and 1x KaMeWa TT2200K/CP-KII 2200mm 1350kW stern thruster.

•   2 x Ulstein electro-hydraulic steering gears.

•   2 x Blohm+Voss S600 fin stabilisers

Power(Max/Pme  @ 75%)


Operational speed (Tallink/Stena)

28.6kn/22 knots

28-29 knots maximum speed (pre-rebuild)

Capacity (for Tallink)

717 passengers (626 berths)

110 trucks and 85 cars

Capacity (for Stena)

1200 passengers and the following vehicles

1891 lane meters total (661 cars or 110 trailers or a mix of both)

Onboard Facilities in use

•   Stena Plus Lounge (chargeable extra).

•   Met Bar and Grill.

•   Barista coffee house.

•   Family lounge with childrens play area.

•   Free cinema.

•   Stena “outlet” shopping.

•   Dedicated freight driver lounge and separate coach driver lounge.

•   Passenger cabins.

•   Sun and promenade decks.

•   Free Wi-fi @ Sea.

Flag (Stena)

UK flag - red ensignUnited Kingdom (Cardiff)

Previous operators (most recent first)

DFDS Seaways France (as Dieppe Seaways)

SeaFrance (as SeaFrance Molière)

Anek Lines (as Jean Nicoli)

COTUNAV (as Jean Nicoli)

SNCM (as Jean Nicoli)

Superfast Ferries (as Superfast X)

Previous flags

2012 – 2015 France (Le Havre)

2012 – 2012 Malta (Valetta)

2008 -2012 France (Boulogne sur Mer)

2007– 2008 France (Ajaccio)

2002 – 2007 Greece (Piraeus)

Stena Superfast X Gallery

For the best viewing experience, users of mobile devices such as phones or tablets should use their device in landscape format.

NIFS would like to thank Scott Mackey and Diane Poole OBE at Stena Line for their help compiling this page.

An artists rendering of the new Stena E-Flexer class. All four vessels are now confirmed as earmarked for Stena's routes from Belfast. Stena Line.

Stena E-Flexer – Stena’s new class of RoPax ferries.

The leading independent resource on the internet for Stena’s next generation of RoPax ferry, the Chinese built Stena E-Flexer class. Includes technical info and regular updates (including pictures) on the construction of the new vessels including those for Stena Line, Brittany Ferries, and DFDS.

Read More »

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