BOA SUB C Subsea / Offshore Construction Vessel

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1 Accommodation: 138 beds 400 t AHC + 30 t AHC auxiliary crane to 3,000 m (9,843 ft) 600/500/500 t AH/towing winches to 3,000 m (9,843 ft) 7.2 m x 7.2 m (23.6 ft x 23.6 ft) moon pool 2 x 220 HP WROV s in hangars to 3,000 m (9,843 ft) 2,500 t carousel 2,004 m 2 free deck space BOA SUB C Subsea / Offshore Construction Vessel

2 BOA SUB C General Information Vessel s Name Flag Class Notations BOA SUB C Malta 1A1, Ice C, Tug, Supply Vessel, Oilrec, SF, E0, Dynpos-AUTRO, Clean Design, Naut- OSV, COMF-V(3) C(3), T- MON, BIS, DK(+), HL (2.8) IMO Call Sign Owner Manager Type Design 9HUC8 Boa OCV AS Boa Management AS Offshore Construction / Cable Laying Vessel VS 4201 OCV Year Built 2007 Place Built Main Dimensions Length Overall Breadth Moulded Depth Main Deck Max. Draught Summer Draught Accommodations Cabins Vigo, Spain m (454.4 ft) 30.6 m (100.4 ft) 11.6 m (38.1 ft) 8.9 m (29.2 ft) 8.77 m (28.8 ft) 72 single + 33 double All cabins are equipped with WC and shower. The vessel has recreation area with cinema, video, smokers lounge, gymnasium and sauna. Air condition installed for the entire vessel. ROV Operations The vessel has two (2) WROV hangars, 1 sb. side and 1 port side. Both WROVs are Oceaneering Millennium Plus design rated to 3,000 m (9,843 ft) water depth. There is a WROV workshop integrated in the superstructure. Both WROVs are equipped with a guided launching system for operation in extreme conditions, typical Hs 4,5 m, and 600 m (1,969 ft) tether. Horizontal Carousel Product storing unit with load capacity 2,500 t Helideck The helideck is designed for Super Puma EC225 Moon Pool The vessel is outfitted with a moon pool of 7.20 m x 7.20 m (23.6 ft x 23.6 ft) Main Crane (400 t AHC) Working depth 3,000 m (9,843 ft) Max working radius 42 m (137.8 ft) Max. height of hook (above deck) 53 m (173.9 ft) Max. capacity at m (9,843 ft) Stern Crane (30 t AHC) Working depth 3,000 m (9,843 ft) Max working radius 20 m (65.62 ft) Max. height of hook (above deck) 25 m (82.02 ft) Max capacity at m (9,843 ft) Deck Free deck space 2,004 m 2 The vessel has 3 large storage holds under the working deck with access through 6 x 6 m hatches Deck Strength The deck is reinforced for a specific load of 20 t/m 2 form frame 96 and aft. Height of cargo rail 3.20 m (10.50 ft) Dynamic Positioning System Kongsberg Simrad SPD-21/SDP11, (IMO DP Class III). Including flexible lay software upgrade Anchor Handling & Towing Equipment AHT 600/500/500 three-drum anchor handling / towing winch consisting of: 1 x anchor handling drum 600 t SWL Inner Diameter 3,500 mm ( in) External Diameter 7,200 mm ( in) Width of Drum 5,800 mm ( in) Capacity 3,500 m (11,483 ft) of 90 mm diameter wire 2 x towing secondary winch 500 t SWL Inner Diameter 1,500 mm (59.01 in) External Diameter 3,850 mm ( in) Width of Drum 2,960 mm ( in) Capacity 3,500 m (11,483 ft) of 90 mm diameter wire

3 Performance Service speed Max. speed Consumption in port Consumption at economical speed Consumption on DP Type of fuel Bollard pull Navigation Equipment Gyro Compass Radar Ecdis 12.5 knots 17 knots Approx. 3 m 3 /day Approx. 25 m 3 /day Approx. 17 m 3 /day MDO 220 t 3 x Anschutz Standard 20 Compact 1 x Pathfi nder/st MK 2 ARPAC3430/12 SD ARPA system 30 kw S-band w/12ft antenna 1 x Pathfi nder/st MK 2 ARPAC3425/7XD ARPA system 25 kw X-band w/2 antennas, one 7ft, one 9 ft 1 x Pathfi nder/st ECDIS MK 2 C21 Bridge Station Echo Sounder 1 x Skipper GDS khz AIS + DGPS, Automatic Identifi cation System (AIS) with GPS antenna (MX428SBIM) Automatic Pilot Auxiliary Cranes Max. Capacity Max. working radius Min. working radius 1 x Anschutz Adaptive Digital Autopilot NautoPilot t (at 22 m radius) 22 m (72.18 ft) 4 m (13.12 ft) Moon pool 7.2 m 2 Shark jaws Hydraulic towing pins Stern roller Capstans Tugger Winches Guide Winches 2 x 750 t SWL hydraulic wire and chain stoppers (Karm Forks) 2 x sets for bollard pull 300 t operated from bridge locally 750 t downward pull (length of 4,500 m (14,764 ft) and width of 4,000 m (13,123 ft) 2 x 15 t 2 x 20 t 2 x 14.9 t SWL (Constant Tension) 3,000 m Machinery & Propulsion Gen. sets Total Capacity Harbour / Emergency Generator 1 x 915 kw Propulsion 2 x kw each gear box 2 x 5,760 kw 4 x 2,880 kw 23,040 kw 2 electrical motors for each of 2 shaft lines Propellers 2 x Scana Volda 1440/1441 Propeller Diameter 4.4 m Rudders 2 x Ulstein Hinze Rudders HLR-S 2700 Thrusters Bow Thrusters Tunnel Thruster Brunvoll 1 x 800 kw Combined Tunnel Azimuth Thruster Brunvoll 1 x 2,150 kw Azimuth Thruster Brunvoll 1 x 2,150 kw Stern Thrusters Tunnel Thruster 2 x Brunvoll 1,425 kw The tunnel thruster fwd is resiliently mounted Capabilities Capacity DWT at 8,6 m draught 12,000 t Fuel Oil 3,400 m 3 Fresh Water 1,425 m 3 (grand total) Ballast Water 16,500 m 3 (grand total) Chain Lockers 6 x 260 m 3 Tank Capacity Fuel Oil 3,400 m 3 Fresh Water 1,400 m 3 Water Ballast 17,900 m 3 Chain Lockers 1,909 m 3 Lube Oil 77 m 3 Hydraulic Oil 53 m 3 Oily Water Drain Tank 25 m 3 Sewage Tank 79 m 3 Grey Water Tank 100 m 3 Sludge Tank 65 m 3 Waste Oil Tank 74 m 3 Drain Tank 21 m 3 FW generator 2 x ENWA MT35 SRH 230, production 35 t/day each at +25 o C.

4 Communication Equipment Satellite Communications Terminal VSat (KU Band / C band) Inmarsat 1 x STR 1500 CN Inmarsat C/GPS Ship Earth Station 1 x NERA Saturn Bm, Inmarsat-B SAT- COM Class 2 Radio Communications MF / HF Systems STR 2000 R (250 Watt) VHF Systems 2 x VHF 1100 DSC Duplex Helicopter Comms Southern Avionics SA-100 (250 KHz to 1250 KHz) Emergency Comms 3 x Tron VHF hand-held watertight: Tron 40S/FBH4 406 MHz EPIRB Tonnage Gross Tonnage 16,562 Net Tonnage 4,969 Rescue & Life Saving Equipment In accordance with flag state and Solas requirements. Lifeboats 2 each with a capacity for 105 persons MOB boat 1 Liferafts 8 each with a capacity for 25 persons Lifejackets 135 Survival suits 105 Miscellaneous The vessel has excellent office and conference facilities. There is an Ethernet data communication network between the bridge, ECR and all offices (onboard) The vessel is equipped with anti heel and roll damping tanks

8 CORPORATE HEADQUARTERS BOA Management AS Strandveien Trondheim Norway Every effort has been made to ensure that all information contained in this brochure is accurate and up-to-date, however all specifications are subject to change without notice and should be verified. BOA Offshore AS accepts no liability or responsiblity for any action taken based on the information presented in this brochure. BOA Offshore AS encourages interested parties to verify the contents of this brochure when in doubt. BOA - Novemberl 2016

BOA SUB C. Subsea / Offshore Construction Vessel

BOA SUB C. Subsea / Offshore Construction Vessel Accommodation: 153 beds 400 t AHC + 30 t AHC auxiliary crane to 3,000 m (9,843 ft) 600/500/500 t AH/towing winches to 3,000 m (9,843 ft) 7.2 m x 7.2 m (23.6 ft x 23.6 ft) moon pool 2 x 220 HP WROV s in