Cerys Line

The Cerys Line is a 26m survey vessel 

The Cerys Line is a 27m survey vessel perfectly suited for 24-hr operations and has an extensive track record in providing survey services since 2009.

The Cerys Line is a 27.5m LOA, 2.1m draft survey vessel with 24-hr operational capability and an endurance of up to 8 days. UK-registered, the survey vessel operates under the MCA workboat code Category 2 and can accommodate up to 4 marine crew and 4 survey crew members for 24-hr operations, with capacity available for a client representative.

Two diesel engines and two water jet engines allow for varying speeds of up to 12 knots, with survey speed of between 4-8 knots depending on water depths.





8 days


Permanently mobilised with a suite of advanced survey equipment

The Cerys Line is permanently mobilised with the latest generation survey equipment, including a Kongsberg EM2040 Compact (dual-head configuration; hull-mounted) multibeam echosounder (MBES) integrated with an Applanix POSMV OceanMaster GNSS-aided inertial navigation system.

QPS QINSy is utilised as the hydrographic survey management system which integrates the GNSS navigation solution and geophysical survey equipment to geo-reference the survey data.

A comprehensive suite of navigation equipment is equipped, including a Furuno FA150 AIS, Bridge Master E TRANSAS NaviRadar and Furuno Navnet VX2 radars interfaced with a TRANSAS NaviSailor ECDIS system, meeting IMO and SOLAS regulations.

Providing comfortable 24hr accommodation, the Cerys Line is equipped to accommodate four persons, with a galley, a TV lounge area and internet in all areas create a pleasant working environment.

Vessel Specifications

Flag: UK

SCV Work Boat Code: Category 2 (60 miles from safe haven)

Length overall: 27.5m

Beam: 5.82m

Draft: 2.1m

Gross Registered Tonnage: 75

Total of 8 berths for 24hr Operations: 2 x Single berth and 3 x twin berth cabins. Dedicated survey acquisition, separate gallery and mess areas

Service speed: 12 knots max – 10 knots cruising

Multibeam Echosounder: Kongsberg EM2040C (200-400KHz), Dual-Head, Dual-Swath, Hull Mounted

Side Scan Sonar*: EdgeTech 4200 Multi-Pulse (300-900KkHz)

Magnetometry*: Geometrics G882 Marine Magnetometer

Positioning System: Applanix POS MV OceanMaster

Motion Sensor: Applanix POSMV (Integrated) IMU

Sound Velocity: Valeport MiniSVS and Swift SVPs

Underwater Positioning*: Sonardyne Mini Ranger 2 USBL (side mounted pole)

Side-Mounted Pole: Purpose built side mounted pole and plates (port and starboard) for additional survey equipment as required

Navigation Software: QPS QINSy Integrated Navigation Solution

Processing Software: CARIS HIPS and SIPS, Chesapeake SonarWiz


* Equipment is optional and can mobilised and de-mobilised as required, along with additional equipment upon request.

Main Engines: 2 x Deutz Diesel SBA 16 M 816 – 1500HP each

Water Jet System: 2 x Volvo D6 – 330HP/Ultrajet 1-5 knots

Generators: 2 x John Deere 4045TFM50 57kW each

Bow Thruster:1 x Volvo D7 HPU – 50HP Thruster

Fuel capacity: 9,500 litres

Fresh Water: 2,400 litres

Black Water: 1,000 litres

Charting System: TRANSAS NaviSailor

Radar 1: Bridge Master E – TRANSAS NaviRadar

Radar 2: Furuno Navnet VX2

DGPS1 /SAT Compass: Furuno SC50

DGPS2: Litton LMX 406

UAIS: Furuno FA150

Auto Direction Finder: Simrad TAIYO

Echo Sounder 1: Furuno FCV620

Auto Pilot: Simrad AP50

Navtex: McMurdo NAV7


VHF 1 GMDSS DSC: Sailor 6222

VHF 2: Furuno FM8800

Handheld: 2 x Handheld GMDSS SOLAS VHF, 3 x UHF ICOM IC-F61V

Network: 1GB Ethernet network system, WLAN/Printer, 4G Internet connection

Phone: GSM Phone, IRIDIUM Sat Phone


2 x 8-man Life Rafts, 8 x Immersion Suits, Fixed Buoyancy Lifejackets for 14 persons, 1 x SART, 2 x EPIRB

Cameras: Deck x 3, Engine Room x 4

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