Blue Fighter

New name: NAO Fighter. A medium-sized PSV vessel of the PX121 design with a cargo deck of 850 sqm and a load capacity of 4,200 tonnes (dwt). It has a max speed of 15.85 knots. The main engine arrangement includes two large and two small engines. By using only one large engine, the service speed can be 12 knots.

Vessel type

Platform supply



Built by

Ulstein Verft AS



Owned by

Nordic Amercian Offshore

Yard number


Designed by

Ulstein Design & Solutions AS

Ordered by

Blue Ship Invest

Operated by

Remøy Shipping

Principal dimensions

83.4 m
18 m
Dead weight:
4242 tonnes
Draught (max):
6 m
Speed (max):
15.85 kn
24 POB
Deck area:
850 sqm

Note: Subject to selected variant configuration


Fuel Oil (MDO):
1474 cbm
Fresh Water:
1033 cbm
Ballast water/Drill water:
1676 cbm
Liquid mud (sp. gr.2,8 t/m3):
1307 cbm
Brine (sp. gr.2,5 t/m3):
1307 cbm
Cement (4 tanks):
254 cbm
LFL* (4 tanks):
153 cbm
Base oil:
259 cbm


  • DnV 1A1, Offshore Service Vessel Supply, SF, E0, DYNPOS-AUTR, CLEAN DESIGN, COMF-V(3), COMF-C(3), LFL*, NAUT-OSV(A), DK(+), HL(+)

Featured solutions

Ship history

Vessel's name today is 'NAO Fighter', but the vessel was originally named 'Blue Fighter'. Delivered on 19 January 2012. After only days of operation in the spot market, ‘Blue Fighter’ entered a one-year contract, with an option for an additional year, with the American oil company Apache for work in the North Sea.

Remøy Shipping has technical and commercial management of the vessel, and the vessel's first Captain, Inge Gjelsten, had mastered several newbuilds before, but stated that 

"A vessel of this type is my preferred choice for the North Sea. It is remarkably efficient and comfortable in all weather conditions. Wind and seas have little impact on the vessel’s performance compared to conventional PSVs. We can compare performance directly when steaming on the same tracks to the oil fields: With the same weather conditions and 3-5 metres head sea within 30 degrees of the bow, our ship can easily and comfortably maintain a speed of 12-13 knots, while the other vessels have to reduce their speed to 7-8 knots. The higher speed is a result of the ‘X-BOW® effect’. Also, due to the position of the stabilisation tanks on board, ‘Blue Fighter’ operates extremely well when wind and seas approach from the side.”

Ulstein’s decision to focus on this ship type resulted from careful market analysis. The vessels have an optimum combination of fuel efficiency and deadweight, and a capacity and performance that approaches those of larger PSVs. They can take on most of the tasks usually handled by slightly larger PSVs, but at a lower operating cost.

The ship investment company Blue Ship Invest, a part of Ulstein Group, thus ordered two such vessels at the end of 2010, and later ordered four more, all of which were acquired by Nordic American Offshore (NAO) on 1 November 2013. All the vessels changed names, and 'Blue Fighter' was renamed 'NAO Fighter'.

2016: Still active - IMO 9613692

Please contact us for more information

Ulstein Verft AS

P. O. Box 158
NO-6067 Ulsteinvik

Tel: +47 7000 8000