Wärtsilä 46F

Best-in-class fuel economy & outstanding power-to-weight as well as power-to-space ratios

The technologically advanced Wärtsilä 46F can be run on either heavy fuel oil (HFO), marine diesel oil (MDO), or on light diesel when being operated within strict coastal or port emissions areas. This fuel switching can take place smoothly and without power interruption across all engine loads.

This flexibility enables the operator to select the fuel according to price, availability, and the need to meet local emissions regulations.

The Wärtsilä 46F engine is fully compliant with the IMO Tier II exhaust emissions regulations set out in Annex VI of the MARPOL 73/78 convention.

    Technical Data
    Wärtsilä 46F IMO Tier II or III
    Cylinder bore 460 mm Fuel specification:
    Piston stroke 580 mm Fuel oil 700 cSt/50oC
    Cylinder output 1200 kW/cyl 7200 sR1/1000 F
    Speed 600rpm ISO 8217, category ISO-F-RMK 700
    Mean effective pressure 24.9 bar L engine SFOC 171 g/kWhat ISO condition
    Piston speed 11.6m/s V engine SFOC 170 g/kWh at ISO condition
    Option:Lubricating oil module integrated on engine.

    Dimensions (mm) and weights (tonnes)
    Engine type A* A B C D F Weight
    6L46F 8430 8620 3500 2930 3750 1480 97
    7L46F 9260 9440 3800 2950 3750 1480 113
    8L46F 10080 10260 3800 2950 3750 1480 124
    9L46F 10900 11080 3800 2950 3750 1480 140
    12V46F 10080 10150 3770 4050 3800 1820 173
    14V46F 11650 11729 4243 4678 3800 1820 216
    16V46F 12700 12779 4243 4678 3800 1820 233


    Rated power
    Engine type kW
    6L46F 7 200
    7L46F 8 400
    8L46F 9 600
    9L46F 10 800
    12V46F 14 400
    14V46F 16 800
    16V46F 19 200

    Press releases

    Wärtsilä to provide clean power and navigational control for new Virgin Voyages cruise ship fleet

    by Wärtsilä Corporation | Jul 03, 2017
    The technology group Wärtsilä has been contracted to provide a comprehensive scope of solutions for three new 2800 passenger cruise vessels being built for Virgin Voyages. The ships are to be built at the Fincantieri shipyard in Italy. The order for Wärtsilä engines, hybrid exhaust cleaning scrubber systems, and selective catalytic reduction (SCR) systems was booked in 2016, while the order for the Wärtsilä integrated navigation systems was booked in March 2017.

    Virgin Voyages is the latest of the international Virgin Group’s travel businesses. The company plans to create a completely new experience at sea for its cruise passengers, and the ships have been designed with the latest technologies accordingly. The Wärtsilä solutions have been selected to support the requirement for clean and efficiently operating vessels.

    The ships will each be powered by two eight-cylinder and two twelve-cylinder Wärtsilä 46F engines. The technologically advanced Wärtsilä 46F engine represents best-in-class fuel economy, and outstanding power-to-weight and power-to-space ratios.

    The Wärtsilä Hybrid Scrubber System selected for these vessels has the flexibility to operate in both open and closed loop modes using seawater to remove sulphur oxides (SOx) from the exhaust. Significant reductions in the emissions of nitrogen oxides (NOx) and particulates will be made possible by the Wärtsilä SCR system. Wärtsilä will also handle the commissioning of the engines and scrubber systems in cooperation with the shipyard.

    Navigation and automation controls for the vessels will be efficiently handled by the Wärtsilä’s Nacos Platinum solution. By integrating various control and monitoring systems, such as those for navigation, automation, emergency shutdown, flood detection, plus power and propulsion, the vessels can be operated homogenously from various onboard positions. The truly multi-functional operator stations enable unequalled flexibility and convenience.

    “It is an honour for Wärtsilä to have been selected to provide such a comprehensive range of solutions for this high profile travel business brand now entering the cruise sector. It represents further endorsement of the quality of our offering and the benefits of our capabilities as a single-source supplier,” says Fred Danska, Director, Cruise Business, Wärtsilä Marine Solutions.

    “We are very pleased to be able to partner Wärtsilä for our first series of ships. Their technical expertise, commitment to supporting our sustainability goals, and excellent reputation made them the best choice for us. Virgin Voyages is committed to creating a sea change, Wärtsilä shares our vision and will help make it a reality” says Stuart Hawkins, Senior Vice President, Marine & Technical, Virgin Voyages.

    Florida based Virgin Voyages’ cruise operations will commence in 2020 from Miami with the delivery of the first of these three ships. The other two vessels will be delivered in 2021 and 2022.

    Link to image

    Caption: Tom McAlpin CEO & President, Sir Richard Branson Founder Virgin, Stuart Hawkins SVP Marine & Technical at the rollout of the new name and logo for Virgin Voyages.

    Media contacts:

    Mr Fred Danska
    Director, Cruise Business
    Wärtsilä Marine Solutions
    Tel: +358 10 709 5405

    Ms Marit Holmlund-Sund
    Senior Manager Marketing, Communications, Marine Solutions
    Wärtsilä Corporation
    Tel: +358 10 709 1439

    Wärtsilä in brief

    Wärtsilä is a global leader in advanced technologies and complete lifecycle solutions for the marine and energy markets. By emphasising sustainable innovation and total efficiency, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers. In 2016, Wärtsilä's net sales totalled EUR 4.8 billion with approximately 18,000 employees. The company has operations in over 200 locations in more than 70 countries around the world. Wärtsilä is listed on Nasdaq Helsinki.


    IMO Tier III and Beyond

    Some years ago, with the end of the Wärtsilä 46 product cycle in sight, Wärtsilä decided to upgrade the engine design.
    28 May 2012
    • Twentyfour7. article

    Related services

    Contact us – Wärtsilä 46F

    If you have an inquiry concerning an existing installation, spare parts, maintenance etc, please send us a service inquiry.

    Please fill in the form on the right if you have an inquiry related to MARINE ENGINES for newbuild applications. Fields indicated with an asterisk (*) are required.

    Find your local Wärtsilä office

    © 2019 Wärtsilä