Nigerian Navy orders new survey vessel from Ocea

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After receiving the 60 metre NNS Lana hydrographic survey vessel from Ocea earlier this year, the Nigerian Navy has ordered a 35 metre hydrographic survey vessel from the French shipbuilder.

Ocea on 12 October said the contract is for an OSV 115 SC-WB vessel that is part of the company’s auxiliary vessels range. “In support of the OSV 190 NNS Lana, it will allow the Nigerian Navy to complete the knowledge of its maritime territory,” Ocea said.

The OSV 115 SC-WB is designed for several missions, including oceanographic/hydrographic operations/survey; oil spill operations; general patrol; search and rescue; and diving support.

Equipment that will be carried on board includes a multibeam echosounder; a single beam echosounder; water sampling, storage and analysis equipment; and a wet laboratory. A 5.6 metre hydrographic boat fully equipped for surveys in small and very shallow waters will also be carried.

The vessel has a capacity for 12 crew and passengers and will be able to reach a top speed of 12 knots and a range of 3 000 nautical miles at 10 knots.

The Nigerian Navy has received a large number of vessels in recent years from Ocea, including the NNS Lana, two 35 metre FPB 110 Mk II patrol boats and two 17 metre C-Falcon interceptors.

The NNS Lana arrived in Nigeria on 17 May and replaced the previous NNS Lana, which was decommissioned a decade ago. The vessel (A499) is designed and purposely built to enable the Nigerian Navy to conduct hydrographic and oceanographic surveys. It is also capable of conducting geophysical studies, search and rescue operations as well as patrol duties. The ship is equipped with survey equipment as well as a 7.6 metre boat for shallow water surveys. The ship has an Automatic Weather Station (AWS), wet and dry laboratories, scientific and technical workshops as well as operating and processing rooms for survey data.

Machinery includes two MTU engines, three CAT main generators/one emergency generator, electric propulsion system and other auxiliaries. The electric propulsion, which is operated at survey speed, is particularly installed to minimize distortion of data due to machinery noise. The ship has a maximum speed of 14 knots and a capacity of 50 crew.

The two new hydrographic survey vessels will help the Nigerian Navy Hydrographic Department conduct hydrographic surveys and charting of Nigeria’s waters. They will also afford Nigeria the opportunity of keying into the General Bathymetric Charts of the Oceans (GEBCO) Seabed 2030 project and the Global Multi-Resolution Topography (GMRT) synthesis project which would ultimately facilitate Nigeria’s accomplishment of its obligation under the SOLAS Convention (International Convention for the Safety of Life at Sea).



Over the last eight years Ocea has supplied one FPB 98 Mk I patrol vessel, eight FPB 72 Mk II, two FPB 110 and two FPB 110 Mk II patrol vessels to Nigeria in addition to four C-Falcon interceptors.