SIEM MOXIE SX 163

Particulars are believed to be correct, but without guarantee. Updated in April 2017. Page Two

General

The ISV Siem Moxie is a unique Installation Support Vessel specially

designed and equipped to allow quick and safe “walk to work” access

to offshore installed assets. The vessel provides a reliable platform

for offshore wind farm operations including installation, repair and

maintenance operations as well as technician accommodation and

transport.

The vessel design is based on an SX 163 design to meet todays and

future demands of the offshore wind industry.

The vessel is environmentally friendly with a focus on low fuel

consumption and has been designed in line with DNV-GL’s Clean

Design guidelines.

With its optimized hull form, including the X-bow shape, sophisticated

propulsion system, 3D motion-compensated knuckle boom crane and

active motion-compensated personnel transfer gangway, the vessel

is optimized for working in demanding weather conditions. The vessel

design is hereby focused on optimal safety, efficiency, capability and

comfort.

The propulsion system comprises speed controlled electric motors

through two Voith Schneider Rudder ECS propeller units, one

retractable thruster and two transverse tunnel thrusters.

In addition to the exceptional active roll-stabilisation achieved by the

Voith Schneider system, a passive roll reduction system is built in.

Description

High standard accommodation is available for 60 persons with low

noise levels. With its optimized hull form, including the X-bow shape,

sophisticated propulsion system, 3D motion-compensated extendable

boom crane and active motion-compensated personnel transfer

gangway, the vessel is optimized for working in demanding weather

conditions. The vessel design is focused on optimal safety, efficiency,

capability and comfort.

The propulsion system comprises speed controlled electric motors

through two Voith Schneider Rudder ECS propeller units, one

retractable thruster and two transverse tunnel thrusters. In addition

to the exceptional active roll-stabilisation achieved by the Voith

Schneider system, a passive roll reduction system is built in.

The vessel’s main services/duties are:

Support of installation, repair and maintenance services on fixed

offshore structures and other offshore installed assets.

Safe transfer of personnel from a fixed structure to the vessel and

vice versa.

Safe lifting operations of up to 5 tons to and from a fixed structure.

The vessel is fitted with:

Active motion-compensated personnel transfer gangway. 3D motion

compensated and extendable boom crane.

SIEM Moxie-Installation Support Vessel

Particulars are believed to be correct, but without guarantee. Updated in April 2017. Page Three

Main Particulars:

Length overall 74.0 m

Length between p.p. 70.7 m

Breadth moulded 17.0 m

Depth from main deck 8.0 m

Max. draught 6.4 m

Design draught 6.0 m

Freeboard at max. draught 1.6 m

Freeboard at design draught 2.0 m

Capacities (100%):

Fuel oil 955 m3

Fresh water 780 m3

Water ballast/TFW 1,877 m3

Lub. Oil & Hydr. Oil 55 m3

Sewage 160 m3

Deck load (VCG 1 m ab. main dk.) 500 t, 5 t/m2

Cargo deck area 190 m2

Deadweight at max. draught 2,798 t

Gross tonnage 4,367

Net tonnage 1,311

Maximum deck cargo capacity is based on a slightly lesser draught

than the vessels’ maximum draught.

Classification and Regulations:

The vessel is built and accredited in accordance with NMA (Norwegian

Maritime Authority).

Main Class is DNV *1A1 with the following class notations: Offshore

Service Vessel, SF, E0, BIS, DYNPOS-AUTR, CLEAN DESIGN, COMF-

V(3), NAUT-OSV (A), SPS.

IMO MSC.266(84) - Code for Special Purpose Ships, 2008.

Nationality:

Norwegian flag (NIS).

Thrusters:

Two off Tunnel thrusters fwd., electrically driven

Variable speed, controllable pitch type

Propeller diameter approx.: 2,250 mm

Motor rating approx.: 1,200 kW at 900 rpm

Fresh water cooled electric motor

One off Retractable azimuth thruster fwd., electrically driven

Variable speed, controllable pitch type

Propeller diameter approx.: 1,650 mm

Motor rating approx.: 850 kW at 1,200 rpm

Fresh water cooled electric motor

Roll Reduction System:

Two off Passive roll reduction tanks

Active roll stabilisation is achieved through the Voith Schneider pro-

pulsion and control system.

Joystick:

The vessel is equipped with a joystick system which integrates control

of the main propulsion units RPM and two off side thrusters and one

off retractable thruster simultaneously in one off single control lever.

DP System:

The vessel is equipped with a DP-2 (Dynpos AUTR) system comprising

the following reference system and sensors:

Two off Wind sensors with heating

Three off Motion Reference Units (3 off x-y direction)

Two off Differential GPS Systems

One off Cyscan Laser Reference System

One off Radarscan Relative Position Sensor

Anti Heel System:

Active anti heeling tank system comprises of:

Two off Wing tanks

One off Pump with el. motor, capacity approx. 400 m3/h

Particulars are believed to be correct, but without guarantee. Updated in April 2017. Page Four

Electrical System:

The vessel operates an alternating current system, which comprises of

3 phase 60 Hz general electric system acc. to DIN and/or IEC standards

and norms. System voltages: 690VAC, 440VAC, 230VAC and 24V DC.

Machinery Systems:

Two off F.O. day tanks

Two off F.O. settling tanks

Three off F.O. transfer pumps

Two off F.O. separators

Three off L.O. transfer pumps

Two off WB/TW pumps

Two off FW pumps

Two off Starting air compressors

Two off Starting air tanks of vessels

One off Working air compressor

Three off Bilge pumps

One off Bilge water separator

Two off Fire pumps

One off Emergency fire pump

One off Watermist fire protection system in engine room

Safety Equipment:

The vessel has safety equipment according to SOLAS and flag state

requirements.

Two off Fast Rescue Crafts with aluminum hull, inboard diesel

engine and water jet propulsion basin

Two off Single-point davit LARS inclusive of active heave

compensated winch system for Fast Rescue Crafts

Six off Life rafts, 35 persons each, 3 on each side

ULSTEIN SX 163

Particulars are believed to be correct, but without guarantee. Updated in April 2017. Page Five

Uptime Active Motion-Compensated Personnel Transfer

Gangway

An offshore access gangway (transfer system) is installed on the

C-deck mid-ship. The transfer system is based on an active motion-

compensated gangway system and can work in various modes.

Access to the transfer system is arranged directly from the C-Deck

on a permanent basis thus allowing for easy and safe access of

personnel.

Siem Moxie has been designed to operate in up to 3.5m significant

wave height for transfer of personnel to and from foundations as well

as the transfer of goods from the vessel to foundations using the 3D

motion compensated crane based on class requirements for the area

of operation.

Particulars are believed to be correct, but without guarantee. Updated in April 2017. Page Six

MacGregor 3D Motion Compensated Crane

The vessel is fitted with a three-dimensional (3D) motion-

compensated extendable boom crane on a newly designed pedestal

base, situated on the aft B-deck along the vessel centreline. The

compensating base can be locked allowing the crane to be used as a

conventional offshore heave compensated pedestal crane.

The crane capacity is SWL 5 t at 25 m outreach and at a hook-height

of 30 m above sea level. The crane can typically be used to place 10’

container or suitable pallet and box loads on offshore foundations or

platforms or on unmanned offshore installations.

In addition the crane includes a man-riding function in order to address

both MEDVAC and gangway contingency operations.

The crane, which has a hydraulically-tilting foundation, is mounted

at the centre point of the vessel. Although all areas of the vessel

experience the same angular movements in a seastate, positioning

the crane at the centre of the vessel minimises the actual physical

displacement of the crane and its load. The crane’s tilting foundation

compensates for pitch and roll, maintaining the crane pedestal vertical

with respect to the vessel movement; active heave compensation

provides the third degree of stabilisation.

The crane complies with NMD Regulations and the ILO 152 for

offshore lifting operations.

A motion reference unit (MRU) is the primary sensor for calculating

heave motion. In addition, a secondary sensor placed at the crane

boom tip is used to verify the MRU’s accuracy and provide overall

redundancy, adding to the system’s safety.

Particulars are believed to be correct, but without guarantee. Updated in April 2017. Page Seven

Main Propellers:

Two off Voith Schneider ECS Propellers and Cycloidal

Rudders and associated transmission

Power is approx. 1,850 kW

Motor speed 0 – 1,200 rpm

Blade orbit diam. 2,800 mm

Blade length of 2,340 mm

No. of blades: 5

Generators:

Two off Main engine generator sets,

capacity approx. 1,840 ekW at 1,800 rpm

Two off Main engine generator sets,

capacity approx. 1,380 ekW at 1,800 rpm

Total output approx. 6,440 ekW

One off Emergency generator set with air radiator-cooled engine

Emergency generator output approx.

285 ekW at 1,800 rpm

Deck Machinery:

One off Double electric windlass/mooring winch with cable

lifters, drums and warping heads

Two off Electric mooring winches aft, 10 t each

Workability:

The vessel has been designed and has proven its ability to operate in up to 3.5 m significant wave height, both for personnel transfers via gangway and cargo transfers using its specialized crane within its area of operation.

UTILIZING OUR ADVANCED FLEET OF OFFSHORE SERVICE VESSELS

E-mail: soc@siemoffshore.com

Telephone: +49 491 912 43-0

Siem Offshore Contractors GmbH

Bavinkstrasse 23, 26789 Leer, Germany

www.siemoffshorecontractors.com

c/o Siem Offshore AS

Nodeviga 14 • 4610 Kristiansand • Norway

Siem Offshore Contractors aims to fully utilize its advanced fleet of offshore service vessels to install, repair and maintain submarine cables within both the offshore renewable

energy market as well as the oil and gas industry. We excel in harsh conditions, minimising weather delays and maximising roll-out efficiency.

Postal address:

P.O. Box 425 • N-4664 Kristiansand S • Norway

Chartering Department:

Telephone: + 47 38 14 30 12

E-mail: chartering@siemoffshore.com

www.siemoffshore.com

Siem Offshore Inc