ALP Striker

Ultra-long towing distance, oceangoing tug. With a bollard pull of more than 300 t, the vessel is designed for towing very large structures over long distances, such as oil rigs or FPSOs from the building yards to the installation site at the oil field. The vessel has fuel capacity to tow at full power for 45 days.



Built by

Niigata Shipbuilding & Repair, Japan



Owned by

ALP Maritime Services

Designed by

Ulstein Design & Solutions AS

Ordered by

ALP Maritime Services

IMO Number


Principal dimensions

88.9 m
21 m
Dead weight:
4250 tonnes
Draught (max):
8.5 m
Speed (max):
19 kn
35 POB
Deck area:
550 sqm

Note: Subject to selected variant configuration


Bollard pull:
312.4 t
Ballast water:
2900 cbm
Fresh water:
300 cbm
340 cbm
3200 cbm
Deck cargo:
2,400 t (10t/m2 Max)


  • DNV +1A1, Offshore Service Vessel+, Anchorhandling, Towing, E0, SF, Iceclass 1B, FiFi II, TMON, BIS, DYNPOS-AUTR, Naut-OSV(A), Clean Design, COMF-V(3), BWM-T, Recyclable

Featured solutions

Ship history

The DPII Anchor Handling Salvage Tug was delivered on 12 September 2016 to ALP Maritime Services. ALP Striker achieved an impressive bollard pull result of 309.6t at her sea trials. The vessel was shortlisted for the 'Support Vessel of the Year' Award for the OSJ conference in 2017.

The vessels of the SX157 design were developed in close collaboration with ALP. The vessels are outfitted with DP2 and anchor handling capacity in order to assist during the installation/hook-up phase for the towed objects.

The ALP Future Class family of vessels have a fuel capacity of 3400 m3 of IFO/MGO – sufficient for non-stop Trans-Atlantic/Indian, Pacific Ocean towing operations without fuel calls. These long-distance towing vessels have a bollard pull of 300+ tonnes, a service speed of 13 knots and a top speed of over 19 knots. Additionally, the vessels are equipped with dynamic positioning capability (DP II) allowing ultra-long distance towing, offshore installation and decommissioning of large floating production, storage and offloading (FPSO) units, floating liquefied natural gas (FLNG) units and floating drill rigs at the highest safety levels.

The ALP Future vessels measure approximately 88.9 metres long, weigh 4250 deadweight tonnes and reach maximum speeds of over 19 knots.

At the time of the contract signing, this was a new market to Ulstein, and the largest single contract so far to Ulstein Design & Solutions AS. Ulstein, in addition to providing the design, was also responsible for the deliveries of the main components, such as engines, thrusters and propellers, winch, power distribution and thruster drives, control system and communication system.

When developing the design, Ulstein had to ensure that each vessel has sufficient bollard pull and operational reliability to handle even the heaviest tows by only two vessels. Environment and fuel efficiency have also been important criteria. The vessels are classed with DNV’s Clean Design and Ice Class 1B notations, which allow operation also in restricted zones. Additionally, they are equipped as anchor handling vessels including a stern roller, a three-drummed winch with 400t hoisting capacity, and with chain lockers for rig chain. The ships have comfortable and spacious accommodation reflecting long periods at sea.

March 2020: A contract with Premier Oil brought the tug to the North Sea and this presented a good opportunity to renew her Bollard Pull certificate in Norway. In the new pollard pull test in Flekkefjord (Norway), the ALP Striker achieved a bollard pull result of 312.4t.

Vessel overview

Please contact us for more information

Lars Ståle Skoge DSC4468 comp bw
Lars Ståle Skoge

Commercial director

Tel: +47 915 81 226