Sea Spear

Platform supply vessel of the large and proven PX105 design. The loading deck area is in excess of 1,000 square metres and the vessel has a load capacity of 4,700 tonnes.

Vessel type

Platform supply



Built by

Zhejiang Shipbuilding Co. Ltd, Ningbo, China



Owned by


Designed by

Ulstein Design & Solutions AS

Ordered by

Deep Sea Supply

IMO Number


Principal dimensions

88.9 m
19 m
Dead weight:
4500 tonnes
Draught (max):
6.6 m
Speed (max):
15.5 kn
23 POB
Deck area:
985 sqm

Note: Subject to selected variant configuration


Fuel oil:
870 cbm
Fresh water:
1260 cbm
Ballast/ Drill water:
1520 cbm



Featured solutions

Ship history

The Zhejiang yard, a part of the Sinopacific Group, delivered twelve ULSTEIN designed vessels to Deep Sea Supply during 2013 and 2014.

The vessels are constructed for operations all over the world. “We are very pleased with the vessels - and so are our clients”, stated Finn Amund Norbye, CEO in Deep Sea Supply. “ULSTEIN participated in the vessels' construction and was also responsible for the electrical installations. Communication and quality of work have been good. We have taken delivery of twelve large state-of-the-art platform supply vessels in approx. 18 months, which must be considered to be very satisfactory.” The X-BOW® hull line design eliminates slamming from head sea, increases comfort and safety and reduces fuel consumption.

In addition to the basic design, ULSTEIN delivered a comprehensive package of systems and equipment as well as on-site support. ULSTEIN’s equipment deliveries include diesel electric propulsion and engines, and the system deliveries include power distribution and propulsion, automation, internal communication and entertainment, navigation and radio. The vessels were among the first in which ULSTEIN had the switchboards produced at their own company in Ningbo, reducing delivery time due to shipment.

Ships delivered:

  • ZJ2013 Sea Falcon - delivered 5 February 2013 - IMO number 9645683
  • ZJ2014 Sea Flyer - delivered 14 May 2013 - IMO number 9645695
  • ZJ2015 Sea Forth - delivered 16 August 2013 - IMO number 9656723
  • ZJ2019 Sea Spark - delivered 23 October 2013 - IMO number 9656620
  • ZJ2016 Sea Frost - delivered 13 November 2013 - IMO number 9656735
  • ZJ2020 Sea Spear - delivered 6 January 2014 - IMO number 9656632
  • ZJ2021 Sea Spider – delivered 27 January 2014 - IMO number 9656644
  • ZJ2022 Sea Springer – delivered 8 April 2014 - IMO number 9656656
  • ZJ2023 Sea Supra – delivered 10 June 2014 - IMO number 9656668
  • ZJ2024 Sea Surfer – delivered 18 July 2014 - IMO number 9656670
  • ZJ2025 Sea Swan – delivered 3 September 2014 - IMO number 9656682
  • ZJ2026 Sea Swift – delivered 23 October 2014 - IMO number 9656694

2017: All vessels in the DESS fleet were merged into the Solstad Farstad fleet. From 1 October 2018, this company changed named to Solstad Offshore.

2019: The 'Sea Spear' has changed colours to the Solstad colours, and is soon to change name. The photo below was taken by the Ulstein team on 21st January 2019 in Limassol, Cyprus, during 5-year classing.

2023: Sea Spear has been sold to Tidewater.

The 'Sea Spear' during 5-year classing.
The 'Sea Spear' during 5-year classing.

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