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Edda Flora ROV/Subsea Vessels

Edda Flora is an ROV/Survey vessel. She is well equipped for operations in harsh conditions, including a DE-ICE notation. As a sidenote, Edda Flora was, in 2008, one of the last vessels to be built in the Haugesund area, which is where Østensjø makes its home.

General description

General

Operator
Østensjø Rederi AS
Built
2008
Builder
Karmsund Maritime AS
Delivered
July 2008
Yard no.
29
Call sign
LAJW
Flag
Norwegian
Port of Registry
Haugesund
IMO no.
9386380
Classification
DNV, 1A1, SF, Comfort-C(3)-V(3), HELDK-SH, EO, DYNPOS AUTR (ERN 99/99/99), CLEAN DESIGN, NAUT OSV, ICE C, PMS, ISM, DE-ICE
Safety regulations
NMA, World Wide, GMDSS A3, Solas 1974/1978, International Convention on Load lines, Pollution Prevention - MARPOL 1973/1978, INLS certificate
Outline of the vessel
The vessel is designed as a Inspection Maintenance & Repair Vessel. It is specially designed for operation in northern waters and high focus on excellent manouverability and station keeping capabilities. The vessel is built for the following main tasks: • ROT operations using module handling system • Inspection and ROV operations • Light construction works • RFO operations. It has also the following special features: • Skidding system for 30 tons modules on main deck. • LARS handling system for OBS-ROV and WORK- ROV. • One moonpool for MHS operations. • SCR catalytic reactors for reduced Nox emissions to air. • DE-ICE notation, with covered l mob boat, bow area and hangar area.

Dimensions

Length o.a.
95,0 m
Length b.p.
82,2 m
Breadth mld.
20,0 m
Depth mld.
9,8 m
Draft max.
8,0 m

Tonnage - Deadweight

Gross tonnage
6074 GT
Net tonnage
NT
Deadweight max
4696 t

Deck loading capacities

Deck measurements
40 m x 19 m
Outside deck area
750 m2
Inside deck area (hangar)
WROV hangar 73 m2. OBS ROV hangar 36 m2
Deck cargo capacity
1900 t. 10 t/m2

Deck equipment

Anchor chain
10 shackles PS and SB. Type: 52 mm Stud Link chain
Anchors
2 x 4590 kg. Type: Spek Stockless
Anchor Windlass / Mooring Winch
2 x 20 T
Mooring winch
1 x 12 T
Deck cranes
3 x 15 tm: 1.13 T at 15 m. 1 x 4 tm: 0.590 T at 7.7 m
Tugger winches
1 x 20 T
Capstans
2 x 10 T
Offshore crane
Single part: 50 T at 15 m. 15 T at 25 m. Double part: 100 T at 7,5 m. Wire lenght: 2000 m Active Heave Compensated to 100T. Aux winch (AHC): 10 T at 26 m. Wire length: 450 m Man riding SWL 5 T. Type: Hydramarine

Propulsion

General
Diesel electric propulsion plant. 2 x Voith Schneider, each 3800 kW. Type: VSP 36 R6EC/300-2
Main engines
5 x Catepillar. Type: 3516 CTA. Each 2220 bkW, 1800 rpm. Total: 11100 kW
Generator set
5 x AVK. Each 2100 kW, 690 V, 60 Hz. Total: 10500 kW
Horse power ration
2 x 3800 kW (Voith ) + 2 x 1400 kW ( Bow thrusters) + 1 x 1400 kW ( Retractable Azimuth)
Fuel type
MDO / MGO

Auxiliaries / Electrical power

Generators
5 x AVK. Each 2100 kW, 690 V, 60 Hz. Total: 10500 kW
Harbour generator
1 x Catepillar, 968 bkW, 1800 rpm. Type: 3508 BTA
Emergency generator
1 x Catepillar, 189 bkW, 1800 rpm. Type: C9TA

Electrical systems and power management

General
Switchboards by WANO. LLC - Low Loss Concept by Wãrtsila/WÄS

Speed / Consumption

Max speed / Consumption
16,6 knots, 42 m3/day
Service speed / Consumption
15 knots, 32 m3/day

Main propellers

Maker
2 x Voith Schneider
Type
VSP 36 R6EC/300-2
Speed
Combinator mode: from 22 rpm to 68 rpm. Fixed mode: RPM 1 (46 rpm), RPM 2 (58 rpm), RPM 3 (68 rpm)
Diameter
4,50 m diam.plate

Thrusters

Bow thrusters
2 x Brunvoll Tunnel thrusters, each 1400 kW. Type: super silent, frequency driven pitch propeller. Alconza el. motors
Bow azimuth thruster
1 x Brunvoll Retractable azimuth thruster and pitch propeller, 1400 kW. Alconza el. motor

Bridge / Manoeuvering

Bridge controls
Bosch Rexroth, Brunvoll
Loading / Discharging
Wartsila IAS

Dynamic positioning system

Type
Kongsberg K-Pos
Approval / Class
DNV DYNPOS-AUTR. IMO Class 2
Reference systems
2 x HiPAP 500, Seapath 200, DPS 200, Fanbeam 4.2
Sensors
3 x Gyro, 3 x Motion Reference Unit, 2 x Wind sensor

Liquid tank capacities

Marine Gas Oil
1140 m3
POT water
1187 m3
Drill Water/Ballast
2890 m3
Misc.tanks
220 m3
Urea
122 m3

Liquid discharge

Fuel Oil pumps
1 x 0-150 m3/h
Ballast pumps
2 x 150 m3/h
Discharge piping
4"
FW high pressure pumps
2 x 60 bar
FW transfer pump
1 x 0-150 m3/h

Navigation equipment

Radar
1 x Furuno FRC 2827 3 cm Chart radar ARPA. 1 x Furuno FAR 2837S 10 cm ARPA. 1 x Furuno FAR 2117BB 3 cm
Electronic Chart System
2 x Telchart T 2137 ECDIS
Compass
3 x Simrad Gyro GC 80
Autopilot
1 x Anchutz pilot star D
Echo Sounder
1 x Furuno FE 700
DGPS
2 x Furuno GP 150
AIS
1 x Furuno FA 150
Voyage data recorder
1 x Furuno VR 3000
Sound direction finder
1 x Vingtor VSS111
Log
1 x Skipper EML 224 EM log
Helideck Monitoring system
1 x Kongsberg Seatex HMS 100

Communication equipment

General
GMDSS installation in accordance with IMO regulations for vessels operating within Sea Area A3
GMDSS Radio MF/HF Transceivers & DSC
1 x Furuno FS-1570
GMDSS VHF with DSC
2 x Furuno FM-8800S
GMDSS VHF portable
3 x Tron TR-20
VHF
3 x Sailor RT 2048
GMDSS EPIRB
1 x Tron 45 SX. 1 x Tron 40S Mk 2
GMDSS SART
2 x Tron
GMDSS Inmarsat C
2 x Furuno Felcom 15
UHF
14 x Portable Motorola GP 340. 3 x Fixed Motorola GM-360. 1 x Fixed Motorola in crane
Sattelitte sytem
1 x GIS V-sat. 1 x Iridium
Mobile Telephone
3 x GSM system
Helicopter Communication
2 x VHF fixed Icom HM-161. 4 x VHF Portable Icom IC-A3E

Accommodation

Total no. berths
70 x Beds
Total no. of cabins
59 x Cabins
Single cabins
48 x Single cabins
Double cabins
11 x Double cabins
Office
7 x Offices
Hospital
1 x Hospital
Ventilation/A-C for accommodation
High pressure single-pipe fully redundant ventilation system. Full heating/AC throughout the accommodation
Other
2 x Operation Rooms, 2 x Conference Rooms, Fitness room, Wardrobe, Laundry, 3 x Lounges

Lifesaving / rescue

Approved lifesaving appliances for
LSA approved for 70 persons
Liferafts
6 x 35 persons. Type: Viking
Rescue/MOB boat
Mare Safety, FRB 700 with 206 HP. TTS Marine Davit HL9DP
Fire-fighting/foam
Water/Foam pump/monitor covering helicopter deck

Module handling tower

General
1 x 30 T , 2000 msw. 1 x Effer crane 44 TM 2,9 T at 12,33 m

Other

Helicopter deck
Helicopter deck designed for Sikorsky S-92 (9,3 T). Helideck designed and equipped in accordance with relevant authorities. Helicopter monitoring system
Helicopter Reception
1
Moonpools
1 x Moonpool 7,2 x 7,2 m with removable bottom and top hatch
Offshore crane
Single part: 50 T at 15 m. 15 T at 25 m. Double part: 100 T at 7,5 m. Wire lenght: 2000 m Active Heave Compensated to 100T. Aux winch (AHC): 10 T at 26 m. Wire length: 450 m Man riding SWL 5 T. Type: Hydramarine
ROV systems
Hangar with arrangements for installation of LARS and ROV on PS and SB. Module skidding system on deck
Large side gates in ship`s side
Hinged hydraulic operated side gate in hangar on PS and SB
Anti roll system
2 x Passive roll reduction tanks. Active roll reduction with Voit Schneider system
Anti heeling system
1 x Anti heeling pump Framo 2000 m3/h. Automatic-/manual system