Reversed Stern Drive Tug 2513 'Bis Viridis'

The first compact tug designed to work always bow first.
  • Built


  • Length o.a.

    24.73 m

  • Beam overall

    13.13 m

  • Depth at sides

    4.95 m

  • Draft aft

    5.50 m

  • Bollard pull ahead

    75 tons

  • Speed

    12.9 knots

  • Propulsion system

    main engines

    2x MTU 16V 4000 M63L-1A

    total power

    4480 bkW (6008 bhp) at 1800 rpm


    Rolls Royce US 255

    propeller diameter

    2700 mm

    forced ventilation

    60.000 m3/h

    exhaust emission

    IMO Tier III compliant

  • Deck lay-out

    Anchor: 1x 360 kg Pool (High Holding Power); anchor winch: hydraulic 10 m/min; towing winch: hydraulically driven split drum 31 ton pull up to 11 m/min, reduced pull up to 38 m/min, 175 ton brake; Ø towing hook: SWL 100 ton; fendering: Cylinder + block bow fender, D-fender side/aft and Ø tyre fendering

  • Auxiliary equipment

    Generator set: 2x Caterpillar C4.4 TA, 81 kVA, 400 V, 50 Hz; Ø generator set: 2x Caterpillar C4.4 TA, 94 kVA, 440 V, 60 Hz; general service pumps: 2x Azcue CA 50/3A 20 m3/h at 2.35 bar; bilge water pump: Azcue CA 32/0.5 3.6 m3/h at 1.1 bar; fuel pump: Azcue BR-41-10 12 m3/h at 1 bar; fuel oil purifer: 2x CJC, PTU3 27/81 3x FA/BLA 27/27; cooling system: Closed box cooling system; fresh water pressure set: Azcue MO-31/10; hydraulic system: double main engine driven pumps; Ø sewage treatment plant: Tecnicomar Ecomar 20; Ø oil pollution control: dispersant pumpset with two spray booms; Ø FiFi set: diesel driven pump 600, 1200, 2400 or Ø with water spray; Ø FiFi monitor: 1x 600, 1x 1200 or 2x 1200 m3/h, water/foam

  • Tank capacities

    fuel oil

    77.4 m3

    fresh water

    10.2 m3

    bilge water

    6.0 m3


    6.0 m3

    dirty oil

    2.5 m3

    lubrication oil

    2.5 m3


    3.0 m3

  • Accommodation

    For 4 (Ø 6) persons, completely insulated and finished with durable modern linings, sound absorbing ceiling in the wheelhouse and floating floors. Air-conditioned wheelhouse, accommodation and switchboard room. Accommodation above main deck with a captain’s cabin, chief engineer’s cabin, one double crew cabin, pantry, mess/dayroom and sanitary facilities. The superstructure is mounted resiliently to reduce noise levels.

  • Nav./comm. equipment

    Searchlights: 1x Norselight, 2000 W + Ø 1x Norselight 2000 W; radar system: 1x Furuno FAR-1518-BB + Ø 1x Furuno FAR-1518-BB; compass: Cassens & Plath Reflecta 11; Ø gyro compass: Anschuetz Standard 22 Compact; autopilot: Simrad AP-70; satellite compass/GPS: Simrad GN70/HS80A; echosounder: Furuno FCV-628 or Ø Furuno FE-800; speed log: Furuno DS-80; VHF: 2x Sailor 6222 + Ø 1x Sailor 6215; VHF hand-held: Jotron TR-20; Ø UHF: Motorola DM4400; NAVTEX: Furuno NX-700; AIS: Furuno FA-170; Ø SSB: Furuno FS-1575; Ø LRIT: Furuno Felcom 19; EPIRB: Jotron Tron-60S; SART: Jotron Tronsart20; anemometer: Gill Instruments GMX 500

  • Class

    Bureau Veritas

Our Services



Damen Marine Services B.V. gives you the opportunity to charter vessels from their own fleet and new Damen standardized vessels from stock.

Generally vessels are being chartered with crew however in some cases a bare boat charter can be considered.

Chartering – Purchase options


Our position is a flexible one. Owning a ship or chartering a ship have their own advantages and disadvantages. Both options can be discussed with Damen Marine Services. In cooperation with the new building division of Damen Shipyards we can see if chartering, as a fore runner, can be used before the purchase of a ship. Temporary utilization of a ship can be discussed as well as long term contracts, all given by circumstance.

Outright purchase

Chartering under positive financial arrangements while your vessel is being built


If any of our vessels are to your liking, an outright purchase can be discussed. The availability of vessels in our present fleet goes without saying. Being part of the Damen shipyards Group the availability of new built stock vessels as well as presently operational vessels is the philosophy.


Whether it's a simple question or you need assistance with your Damen product, we believe great things can start with a small conversation.

I'm interested in...