Detailed specification - DAN SWIFT - J. Lauritzen

DAN SWIFT – Detailed specificaon
1

Health, Safety and Environment
Health, safety, security and work environment is the top priority for Lauritzen Offshore Services. We operate under
a “zero accident” mindset with a no blame culture. We are commied to the acve prevenon of all accidents and
incidents including zero damage to the environment. Our HSSE commitment forms the guiding principle for all our
operaons and is reflected in Onshore & Vessel Procedures as seen in our Governing System.
We have implemented and live up to the stringent HSSE standards required by the Offshore Oil & Gas Industry
while simultaneously conforming to the mandatory codes and guidelines adopted from the Internaonal Marime
Organizaon. We are cerfied according to the ISO 14001;2004 standard.
It is of primary importance that our employees, contractors and suppliers understand, meet and are commied to
the HSSE expectaons set as a part of the employment and contract requirements in an effort toward a connuous
improvement of our operaons and procedures. This is achieved through specific training, drills and safety inducons
on board.
Our employees are our most important assets. Their commitment to the highest HSSE standards is our excellence.
Safety briefing Light signal at the gangway
Technical Speciications - ASV Dan Swift

Introduction
ASV ’Dan Swi’ is the first monohull accommodaon support vessel to service the high end of the offshore market.
In addion to its modern accommodaon facilies, the vessel is equipped with a sophiscated DP2 (K-Pos DP-32)
system, two independent offshore telescopic gangways, large capacity crane, helideck, workshops and storage areas.
Dan Swi is capable of accommodang 256 offshore workers in addion to its own crew and catering staff.
The benefits of using a mono-hull vessel include:
•
•
•
•
•
Large deadweight.
Superior staon keeping and stability.
Fast and flexible deployment between jobs.
Fast and safe disconnecon (hurricanes, gas leaks etc.).
Two independent telescopic gangways ensure flexible connecon paerns and redundancy.
On the following pages, please find detailed descriptions for:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
General Descripon
The Bridge, DP Dynamic Posioning, Thrusters
Subdivision
Workshops
A. Deck Capacity
Crane
Helideck
Gangway
Communicaon and IT Facilies
Offices, Conference and Video Facilies
Accommodaon
Recreaonal Areas
I-IV. Appendix – General Arrangement
1

General Description
Main parculars
Length overall (LOA): 149.55 m
Length arcle 2/8: 138.94 m
Breadth moulded: 20.75 m
Breadth extreme: 23.95 m
Depth moulded to 1st deck: 12.35 m
Depth moulded to 2nd deck: 7.00 m
Draught scantling (moulded): 7.80 m
Draught Summer: 7.50 m
Gross Tonnage: 16525 t
Net Tonnage: 4980 t
Deck area, external: 575 m2 Workshops internal: 350 m2 Deck load capacity: up to 9 mt/m2 Flag/Register:
Danish/Danish Internaonal Register
Class
1A1 Passenger Ship, HELDK-SH, DYNPOS-AUTR, CLEAN, BWM-E(s)
Life saving equipment
In accordance with the requirements of the Danish Marime Authories (DMA) and in excess
of SOLAS, Dan Swi carries a total of four life boats - two on each side, and six life ras - three
on each side, a MOB (Man Over Board) boat and an FRB (Fast Rescue Boat) boat.
Navigaon / Communicaon / Satellite TV
• 10 cm and 3 cm ARPA radars
• Electronic Chart System (ECDIS)
• Radio installaon according to GMDSS – area A3
• Inmarsat C. Inmarsat Fleet 77
• V-Satellite system
• Digital automac telephone system
•
VDR
Technical Speciications - ASV Dan Swift

Starboard side
General Arrangement, not to scale
Deck Layout
Deck 10: Bridge and Helideck
Deck 9: Helicopter lounge and Office area
Deck 8: Accommodaon - Officers
Deck 7: Accommodaon – Crew and Coffee Shop
Deck 6: Accommodaon – Workers, Shop, Life boats
and Muster Staons
Deck 5: Accommodaon - Workers, Galley, Mess Clean
& Dirty, IT/day lounge,
Deck 4: Offices, Conference and Video Conference rooms,
Changing Rooms clean and dirty,
A deck storage & Electrical Workshops
Deck 3: Welding Shop
Deck 2: Workshop Hot Works, Gymnasium and Swimming
Pool
Deck 1: Engine Control Room and Thruster Rooms
Propulsion units
Forward : 3 X 1200 kW tunnel thrusters (CPP)
2 X 1500 kW azimuth thrusters (CPP)
A: 2 X 1200 kW azimuth thrusters (CPP)
1 X 2000 kW azimuth thruster (CPP)
Total power: 11,000 kW
Speed and consumpon
Speed: 11.5 knots service speed
Fuel consumpon: Approximately 20 mt/day at service
speed (weather depending). HFO or MDO
Fuel consumpon: Approximately 15-25 mt/day in DP
mode (weather depending).
Tank capacies and systems
Fuel oil: 1,907 cbm
Potable water: about 800 cbm
An-heeling stabilizing system
Supply systems for compressed air, water, power, fuel and
bilge water.
3

The Bridge, DP Dynamic Positioning, Thrusters
Dynamic Posioning System
Dynamic posioning control system and redundancy according to DP2 (K-Pos DP32).
Reference systems include:
•
•
•
•
•
GPS, 1 X DARPS 700 ( 1 X 200 + 1 X 132 )
Laser, 2 X Fanbeam Mk 4.2 w/lt
Radar: 1 X Radius 1000 D with 2 X 700x transponders
Radar: 1 X Artemis Mk 51
2 X gangways
In combinaon with its 11 MW thruster capacity, these reference systems enable safe and efficient operaon even in
harsh weather condions.
Dan Swi is equipped with eight thrusters, five azimuth thrusters (two retractable) and three tunnel thrusters - all
powered by five generators.
This arrangement ensures a very high staon keeping and meeng Environmental Reference Number (ERN)
(99,99,87).
DP plots shown in the figure are
calculated with the following
condions:
1. All eight thrusters available
2. Wind rotang
3. Current of 1.46 knots rotang
The blue curve shows the limit for
the vessel´s ability to keep posion.
Technical Speciications - ASV Dan Swift
Liming 1 minute mean wind speed in
knots at 10 m above sea level
PORT
300
240
210
Wind speed: Automade
Significant wave height: DNV (ERN)
Mean zero up-grossing period: DNV (ERN)
BOW
330 30
20 40
60
150
ERN (99.99.87).
Wind direcon,
coming from [deg]
STBD
100 [knots]
120
STERN
Rotang dal current:1.46 knots
Rotang wind induced current: 0.000´Uwi knots
80
60

Bridge, DP Control Staon Bridge, manned DP Control Staon
Bridge, DP Control
Staon
Bridge General Arrangement, not to scale
5

Gangways
Dan Swi is equipped with two flexible telescopic gangways, the largest of their type ever built, which offer easy and safe
passage for the 256 passengers from Dan Swi to a fixed or floang offshore unit.
•
•
•
•
•
•
•
•
Length 38.5 m
Stroke +/- 8 m
Alarm points for angle and stroke
Free width 1.2 m
Max gangway rotaon 180 degrees
Max liing angle 24.0 degrees (+15.7 m)
Max lowering angle 16.5 degrees (- 10.9 m)
Gangway pedestal height adjustable (2, 5 & 7 m)
The two-gangway soluon ensures
complete flexibility with one
gangway located forward starboardside
and one mid-ship port-side.
The vessel is able to posion
itself opmally according to
prevailing weather condions
whereby providing a safe working
environment even in harsh weather.
Two gangways provide increased
redundancy / efficiency.
Minimum Requirements for landing
plaorm: 6 x 6 m – free height 12 m
Technical Speciications - ASV Dan Swift
VERTICAL LOAD
Dead load Live load Wind load
18,0 T 9,2 T 0,3 T
18 t 9.2 t 0.3 t
LONGITUDINAL LOAD
Dead load Live load Wind load
2,9 T 0 3,3 T
2.9 t
TRANSVERSE LOAD
Dead load Live load Wind load
2,3 T 0 4,1 T
2.3 t
3.3 t
4.1 t
Structural design of the landing plaorm must meet the following requirements

Gangway on port side Gangway entry
Available services via gangway
in four 2” pipes:
Compressed air
Fresh water
Sea water
Gas oil
7

Waterght Compartments, not to scale
Subdivision
Below main deck the vessel is divided into nine waterght compartments and five main fire zones which comprise the
following main machinery equipment. This will ensure a high degree of redundancy and will minimize faults due to fire
and flooding.
WT (waterght) Compartment no. 1 (most forward)
No. 1, 2 and 3 tunnel thrusters, SW cooling pumps, Central coolers, FW cooling pumps, emergency fire pump and
provision refrigeraon plant.
WT Compartment no. 2
No. 4 and 5 retractable azimuth thrusters.
WT Compartment no. 3
Air condion chillers and forward electrical load centers including forward load 6.6kV / 460V transformers and
converter drives for retractable azimuth thrusters no. 4 and 5.
WT Compartment no. 4
Water generaon and distribuon plant consisng of two reverse osmosis plants and potable / technical water
distribuon systems. The vacuum system and sewage plant are placed in this compartment but separate from the
sanitary water systems. The large air compressors for the an-heeling system are located here.
WT Compartment no. 5
Recreaonal area with swimming pool and gymnasium.
WT Compartment no. 6
Besides a number of venlaon switchboards and water fog sprinkler pump room, this compartment houses the
workshops at the two upper levels and storage area at the lower level. The facilies located in these workshops are
described elsewhere.
WT Compartment no. 7
This compartment houses on the lower floor AE no. 1, 2, 3 and 4 and ancillary systems such as SW, FW, Fuel and Air
and lube oil purificaon plant. Both 6.6 kV switchboard and 460 V switchboard are physically divided and placed in
separate rooms located in SB and PS at the upper level in this compartment. Between the two switchboard rooms
the Engine Control room is located. A waterght door gives easy access between the ECR and the EA placed in
compartment 7 and 8.
WT Compartment no. 8
This compartment houses on the lower floor AE no. 5 and ancillary systems such as SW, FW, Fuel & Air and the two
thermal oil heaters are installed here. Fuel oil and Lube oil purificaon plant as well as the incinerator and garbage
handling facilies are located in this compartment.
WT Compartment no. 9
The azimuth thrusters no. 6, 7 and 8 and frequency converter drive for thruster no. 8 are placed in this compartment.
Technical Speciications - ASV Dan Swift

Engine Control Room, not to scale
Subdivision in Waterght Compartments, not to scale
Engine Control Room
9 8 7 6 5 4 3 2 1
9

Workshops
Workshop Descripon
The workshop and storage facilies are placed below main deck frame 63-86 on three levels. All levels are served by
the 10 mT gantry crane on deck 6 through a 1.11 m x 2.22 m hatch in deck 4, main deck. The two upper levels in the
workshop are equipped with hatches allowing the gantry crane to serve all levels.
The upper level is arranged as welding / pipe workshop with all necessary facilies including monorail liing appliances
and point extracon as well as room extracon to ensure a proper working environment. The welding equipment
includes MIG/MAG and TIG welding machines, electric arc welding as well as plasma cuers. For details please see
below.
The middle level is arranged with welding/pipe workshop and a machinery workshop well equipped with all necessary
tools and machinery. Like the upper level, this level is equipped with monorail liing appliances and point extracon
as well as room extracon to ensure a proper working environment. For details please see aached GA with list of
equipment.
The lower level is storage area and is arranged for safe storage of steel, pipes etc. Furthermore, it is equipped with a
pallet storage rack system, storage shelves and storage cabinets.
The vessel offers significant workspace and storage areas with approximately 575 square meters external deck space
and 350 square meters internal workshop area fully furnished with tools and work staons.
List of equipment:
10 Cabinets with shelves
10 Cabinets with drawers
8 Workbenches
8 Welding tables
4 CGI Outlet staons with cabinet
6 Welding inverters
4 MIG/MAG welding machines
2 TIG welding machines
4 Grinding machines
2 Bench drilling machines
1 Column drilling machine
1 Lathe 2m
1 Band grinder
1 Manual hydraon pipe bander
1 Plasma cuer
1 Cold iron saw with 2 roller tables 2m
Technical Speciications - ASV Dan Swift

Welding Shop Deck 3 , not to scale
Welding Shop
Workshop hot Deck 2 , not to scale
11

Aft. Deck Capacity
A deck, load capacity
Technical Speciications - ASV Dan Swift
A deck, partly covered area
The a deck is divided into a number of storage areas; an open area served by the two knuckle boom cranes, areas
partly covered by the accommodaon structure served by the gantry crane, and indoor workshops and storage areas
served by the gantry crane. The knuckle boom cranes have a capacity of 10 T and 30 T, respecvely. The gantry crane
has a 10 T capacity. For further informaon see the detailed descripon of the crane and working area.
To a great extent, the open deck a is covered with wood for easier and safer handling of goods. Both the wood-covered
deck and the plain steel deck are equipped with D-rings for easy and safe securing of goods.
The deck areas can be divided into different zones:
Open, served by knuckle boom cranes wood-covered 9 t/m 2 80 m 2
Open, served by knuckle boom cranes wood-covered 5 t/m 2 378 m 2
Open, served by knuckle boom cranes wood-covered 2.2 t/m 2 82 m 2
Open, served by knuckle boom cranes steel deck 5 t/m 2 68 m 2
Open, served by knuckle boom cranes steel deck 2.2 t/m 2 82 m 2
Partly covered, served by transverse crane steel deck 5 t/m 2 128 m 2
Partly covered, served by transverse crane steel deck 2.2 t/m 2 259 m 2
On the open a deck, eight container posions with twist locks for 20’ containers are located (max. capacity is 21
pieces. 20´ loaded in three high). Besides the regular container posions, containers can be stored in a number of ways
as the deck is equipped with D-rings for easy and safe securing of goods and containers. The a deck is equipped with a
number of 440 V container sockets which can be ulized for reefer containers or similar.
The two ulity staons situated in each side of the a deck comprise compressed air, fresh water, power and telephone-
& data-connecons. The electrical power connecons are rated as 2x3x230V 35A and 2x3x460V 60A all 60Hz. The
telephone and data connecons are ethernet cables connected to the ship’s network. The compressed air is rated 7 bar
and the fresh water supply is rated 5 bar.

A deck, open and partly covered area
Two 20 “ cont.
Above each other
Two 20 “ cont.
Above each other
One
10”
Skipp
One
10”
One
10”
A deck, container arrangement
One
10”
Two 20 “ cont
Above each other
Handling Area
Two 20 “ cont.
Above each other
Skip
Skip
A deck, wooden area (brown) and steel area (red)
Mooring g
lines
One 20”cont.
Adjust crane if two
One
10”
One
6” 6
One
6”
Skipp
Skipp
A deck, open area
One
6”
One
10”
Two 20 “ cont.
Above each other
Two 20 “ cont.
Above each other
13

Crane
Technical Speciications - ASV Dan Swift
Boom Tip Height [m]
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
Crane in acon
The offshore knuckle-boom crane is classed to offer man-riding capabilies, in addion to the offshore construcon
support it is primarily intended for. It is installed on starboard side of a deck (at frame 16).
Capacity:
Load radius main winch hook (one fall):
Max: 44.0 m
Min: 7.7 m
Boom angles above horizontal:
Main Boom max ( o ) 84.4 o
Main Boom min ( o ) 0 o
Main Boom stowed ( o ) 0 o
Hook level main winch:
Configuraon
Hook level in meter (m) above datum point
At minimum load
radius
At maximum load
radius
Minimum Maximum Minimum Maximum
One fall -8.6 10.5 NA 2.2
Slewing range: 360o Unlimited
Liing Capacies
Winch
Type
Merge
Hook load
SWL
Wire
falls
Hoisng
height
Hoisng speed
SWL Reduced
load
Ton Pcs m m/min m/min
10 1 150 66 120
20 2 75 33 60
30 3 20 22 40
Boom Tip Height [m]
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
Load Chart Sea Lift (Vessel to Vessel), Main Winch, 2 Falls, DAF = 1.30
Upper Limit
Lower Limit
2.6
Load Chart Internal Lift, Main Winch, 2 Falls, DAF = 1.25
2.5
5
5
9
9
-12
-14
13
20
17
20
-16
-8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
17
13
17
13.6
20
15.1
20
Working Radius [m]
13
17
20
-20
-8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Working Radius [m]
20
20
17
17
15.1
20
13
17
13.9
15

Crane, secon of General Arragement. not to scale
Addionally, a second Crane is installed on port side of a deck
(at frame 14).
Capacity:
Load radius main winch hook (one fall):
Liing Capacies
Max: 25.0 m
Min: 5.5 m
Winch Hook load Hoisng Hoisng speed
Type SWL
height
SWL
Ton m m/min
Merge 10 30 0-30
Crane on A deck
15

Helideck
Dan Swi is approved for helicopter operaons up to Sikorsky S-61 (diameter) and S-92 (weight) helicopters, and is
equipped with state-of-the-art helicopter recepon facilies and a helicopter refueling system.
Size
•
•
max weight 12,800 kg
Octagonal shape 22.2 m
Rules and regulaons:
UK CAA CAP 437,
Norwegian CAA,
NMD “Green Book” Ship Rules,
SOLAS and
Brazilian NORMAM Regulaon for Helicopter decks
Danish Aviaon Limitaons, not to scale
Technical Speciications - ASV Dan Swift
Helideck , not to scale

Helicopter landed on Dan Swi
Helideck dimensions, not to scale
17

Communication and IT Facilities
The vessel has an IP-based telephone system, where phones in the cabins and offices can be dedicated to charterer´s
use only. The telephone system can be configured to interface to charterer´s offshore or landbased phone system. External
calls are routed via the vessels VSAT connecon, which have two satellite antennas for redundancy in case of noline-of-sight
caused by rig or plaorm.
The computer network onboard is Ethernet with a fiber opc backbone, and the network is split into several VLANS,
where 1 or more VLANS can be dedicated for the charterer´s use only. Charterer´s VLAN can be connected to charterer´s
landbased network by e.g. VPN and router. The vessel is online and has Internet connecon via the VSAT.
The network is used for distribuon of the live satellite TV for the lounges and cabins.
Technical Speciications - ASV Dan Swift

Example of a communicaon and IT set-up:
SiPass POB card reader
SiPass Access Control System
Client PC
SiPass Access Control System
Charterer’s
Phone
system
(Router)
SiPass VLAN
HiPath VLAN
IP Phone System Client PC
IDSN30
IP Phone System
(Siemens HiPath 3800)
IP Phones
Administration VLAN
Whats’Up Administration
Infotainment
(Live TV)
Infotainment
Front Ends
(Optional)
Infotainment System
(Optional)
Clock VLAN
Central Clock System
IP Clocks
LAN
Internet Café
VLAN
(Workers Lounge)
Internet Browsing PCs
Satellite installaon on Dan Swi
JL Desktop PCs
Kongsberg Systems
Hernis Camera System
JL Printer & Scanners JL Servers
WLAN
Lauritzen VLAN
Charterer’s VLAN
Printers &
scanners
Kongsberg VLAN
Desktop PCs
Servers
Charterer’s
Network
Charterer’s
Network
Charterer’s
Router
Charterer’s
Phone
system
19

Ofices, Conference and Video Facilities
Offices for charterer, auditorium and conference room are all located on deck 4 with easy access from main deck, both
main staircases and staircase from gangway PS.
11 offices are located onboard with a total of 49 work staons; this number can be increased if required. All office spaces
are equipped with telephone and ethernet sockets.
The auditorium is situated on deck 4 forward of the auditorium and has a seang capacity of 60 seats. The auditorium
is equipped with a large projector screen and high spec audio system which gives the audience a real movie experience
when watching film in the auditorium.
Apart from entertainment, the auditorium can be used for conferences and educaonal purposes as it is equipped with
the necessary PA system and whiteboards.
The conference room located on deck 4 has a seang capacity of 12-14 persons prepared for video conference.
An internet-cafe is integrated in the worker´s lounge on deck 5 forward.
Live TV and movies can be arranged in both public spaces and cabins.
Technical Speciications - ASV Dan Swift

Conference Room
Video Conference Room
Video Conference Room to the le and conference room to the right on deck 4, not to scale
Offices on deck 4, not to scale
21

Accommodation & Recreational Areas
The vessel is able to operate independently for extended periods of me and has been designed to offer the passengers
and crew a wide variety of facilies onboard, in order to make their stay comfortable through modern accommodaon
and recreaonal facilies.
The layout of the vessel is:
•
•
•
•
•
•
•
•
291 berths in total of which 256 passenger berths
Four single cabins
34 double cabins
46 four-person cabins
Galley, mess and dayrooms
Hospital
Offices
Conference rooms
Technical Speciications - ASV Dan Swift
•
•
•
•
•
•
•
•
•
•
•
•
•
Private TVs
Cinema
Gymnasium
Swimming pool
Library
Coffee shop
Sun terrace on top of accommodaon areas
Indoor smoking facilies
Day-lounge / internet café equipped with computers
and tv
Pay phones
Lounge areas in connecon with accommodaon
facilies
Coffee shop
Satellite TV
Gymnasium and swimming pool on deck 2, not to scale Gymnasium on deck 2

One of the mess rooms on deck 5 Accommodaon cabin
Workers accommodaon on deck 5 & 6 and galley & messes on deck 5, not to scale
Smoking room and IT/day lounge on deck 5, not to scale
All details believed to be correct, but not guaranteed Version 1a - June 2010
23

APPENDIX
General Arrangement, scale 1:400
Technical Speciications - ASV Dan Swift - APPENDIX
I

APPENDIX
General Arrangement, scale 1:400
Technical Speciications - ASV Dan Swift - APPENDIX
II

APPENDIX
General Arrangement, scale 1:400
Technical Speciications - ASV Dan Swift - APPENDIX
III

APPENDIX
General Arrangement, scale 1:400
Technical Speciications - ASV Dan Swift - APPENDIX
IV

Commercial Management:
Lauritzen Offshore Pte. Ltd.
1 Harbour Front Avenue
# 15-08 Keppel Bay Tower
Singapore 098632
Phone: +65 6275 8000
Technical Speciications - ASV Dan Swift
Technical Management:
Lauritzen Offshore Services A/S.
28, Sankt Annae Plads
P.O. Box 2147
DK - 1291 Copenhagen K
Denmark
Phone: +45 3396 8000