Oblique IB - Multipurpose rescue and
emergency vessel
Innovative Oil Spill Response Vessel
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Development of an innovative ship concept for a multifunctional icebreaker
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Cost-effective solution for various activities related to environment
protection, rescue operations and icebreaking
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Modern oil spill response technology solutions integrated in the ship design
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Innovative hull form and propulsion arrangements for high maneuverability
and advanced operational features
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Application of the concept in the construction of a multipurpose rescue
icebreaker for oil spill response and rescue operations
Market demand
Background for development
Increased cargo vessel size
• Size of icebreakers
• Increased accident consequences
Area in focus – subarctic seas,
Gulf of Finland
• Sensitive marine environment
• Major increase in shipping through
Gulf of Finland
• Increasing demand for emergency,
rescue and response vessels in the area.
• Russian State Customer interests
Increased Vessel Size
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AfraMax tankers
– Beam is typically over 40m
– MT Kyeema Spirit
– LOA 249 m, B 44 m
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Beam of a Baltic icebreaker is
about 25 m
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Cruise ship Freedom of the Seas
(LOA 339 m, B 38,6 m)
– No ice class - 5 assisting
vessels
Increased Traffic in the Gulf of Finland
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Cargo shipping
– Continuous increase in the
crude oil shipping
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Passenger traffic
– Year round cruise/ferry
operation
– Cruise vessels during the
summer period
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Ice-breaker assistance
– Period ca. 4 months
– 10 - 12 ice-breakers
Oil transportation through main ports in the Gulf of Finland (Mtn) Source SYKE
Environment Extremely Sensitive
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Brackish water
Ice covered during winter
Shallow inlets and bays
Broken and long coastline
– Archipelago areas, bays
Already under pressure from human
actions
Special requirements
– Helcom, MARPOL SECA
Increasing need for response
capacity
• Response capacity in the
Baltic 2009
+ 1 / 2013
+ 1 / 2013
+ 1 / 2014
+ 1 / 2013
Response capacity in the Baltic 2009. Source Helcom
Conventional
solutions
Traditional Baltic-Icebreaker
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Traditional icebreaker
+ Oil recovery capacities
+ Salvage functionality
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Excellent in difficult ice conditions
Large fluid capacity
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Oil recovery in difficult weather
Narrow ice breaking breadth
Large vessel with high investment
costs -> high operational costs
Lenght
99 m
Breadth
24,2 m
Propulsion Power
15,000 kW
Recovered fluid capacity
2000 m³
Sweeping breadth
(with sweeping arms)
Over 48m
Purpose built Oil Recovery Ship
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Adequate ice operation capability
(Ice class 1A)
Good recovered fluid capacity
Relatively inexpensive
ÖTA Halli - photo SYKE
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Oil recovery in difficult weather
No icebreaking capabilities
No salvage functions
Lenght
60,0m
Breadth
12,4m
Propulsion power
1,850 kW
Recovered fluid capacity
About 1400 m³
Sweeping breadth
(with sweeping arms)
40 m
Ice-strengthened Rescue Vessel
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Adequate ice operation capability
(Ice class Arc 5)
Multiple functions for salvage,
firefighting, and underwater
operations
Spasatel Karev – Nevsky Shipyard
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Oil recovery in difficult weather
Limited icebreaking capabilities
Limited recovered fluid capacity
Lenght
73,0m
Breadth
15,5m
Propulsion power
4,000 kW
Recovered fluid capacity
About 700 m³
Sweeping breadth
(with sweeping arms)
40 m
Innovative
solution
Multipurpose Oblique Icebreaker
Oblique Icebreaker
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Truly revolutionary idea in
icebreaking:
– Original idea patented by Aker
Arctic in 1997
– Oil recovery functions by using
vertical side as sweep arm was
introduced 2002
– Development into a real ship in
co-operation with Aker Arctic and
Arctech Helsinki Shipyard
Source: Aker Arctic
Oblique icebreaking patent
The problem
The channel is too narrow for a big vessel
Big vessel
The present solution
Two icebreakers assist one big vessel
The innovation
One "Oblique icebreaker “ breaks channel
wide enough for a big vessel
Breaking channels of normal width is no problem
Normal size vessel
Source: Aker Arctic
Icebreaking features
• Ahead and astern:
• Transit in level ice up to 1.0m
thick level ice
• Oblique mode
• Possible directions from 0-180
degrees without limitations
• Channel width up to 50 m
• Harbor ice management
• Quayside cleaning
• Hull vertical side used as sweep
arm.
• Ridge penetration
• Capability to penetrate ice ridges
and to operate in any direction and
to turn inside ridge fields
Source: Aker Arctic
Icebreaking performance
• Hullform and ice breaking performance
are based on extensive model test
program (Aker Artic) :
• Ahead and astern:
• 3 knots 1,0 m level ice
• 6 knots 60 cm level ice
Maneuvering test in level ice H=0.6m.
Video Aker Arctic
• Oblique mode
• 2 knots 60 cm level ice
• Channel with 50 m
• Ridge penetration ability was model
tested for 6 & 8m ridges in ahead and
astern mode and 4m & 8m ridges in
oblique mode.
Performance test ahead in level ice H=1.0m.
Video Aker Arctic
Oil recovery in open water
• Oil recovery in open water:
• Hull vertical side utilized as a wide sweep arm.
• Side door guides the recovered fluid into skimmer tank
• Oil separation by build-in brush collectors
• Capable to recover oil in harsh weather conditions.
Side door leading water
to skimmer tank
Build-in oil recovery system
Build-in oil recovery system:
1. Side door guides the recovered fluid into
Skimmer tank
2. Brush type arctic skimmer separates oil
and seawater.
3. Oil is led to adjacent collector tank
4. From collecting tank the oil will be
pumped into recovered oil storage tanks
with fixed transfer pumps.
5. Processed water will be will be pumped
out from skimmer tank with propeller
pumps to get effective flow through the
oil recovery channels.
6. For removal of recovered oil from tanks
a portable pump and hoses is used.
Oil recovery in brash ice
• Build-in oil recovery system:
• Arctic oil skimmer is able to process
oily water containing small ice
pieces.
• Collector tank is protected with grate
to avoid blocking by ice.
• Recovery of oily ice float:
• Vessel is equipped with removable
grab for lifting oily ice floes to deck
• Grab is operated with knuckle boom
type offshore crane [25 tonnes with
outreach of 5 m overboard]
• Chemical methods
• No dispersant spraying system
installed onboard
• Mechanical methods to combat oil
spill is recommended for Baltic Sea
region [HELCOM 2001]
Oil recovery capacities
• Build-in oil recovery system:
• The theoretical collecting capacity is
abt. 550m3 / hour with one knot speed
of the vessel 30º Oblique angle and
oil film of 10 mm.
• Able to collect oil and petroleum products
having flashpoint temperature above 60°C.
Oil bagging system
Source: LAMOR
• If only small amount of oil is collected, it can
be taken to oil collecting bags on deck.
• Recovered oil storage tank capacity ca.
900m3
• Container slots on aft cargo deck for oil
boom storage
Recovered oil storage tanks
Firefighting capabilities
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Firefighter class notation
– Russian Maritime Register of
shipping: FF3WS
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Fire fighting capacities:
– 1 firefighting pump 3000m3/h 12bar
– 2 Water monitors:
• Water 1000 m3/h
• Foam 300 m3/h
– 1 dry powder monitor 40kg/s
– Water spraying capacity 980 m3/h
Emergency and rescue capabilities
Rescue operations in harsh weather:
• Rescue operations in harsh weather
conditions in oblique mode to minimize
the motions of the vessel.
Rescue duties and facilities:
• Patrolling, searching and rescue duties
• Emergency center below wheelhouse
Heading
225 deg.
• Rescued persons accommodated in
crew common space (Mess etc.)
• Single berth hospital & sanitary cabin to
provide first aid for injured people
• Helideck for evacuation of rescued and
injured people
Rescue area
Rescue operation in harsh weather:
Lowest relative motions on SB side when
wave heading angle is 225 degrees
Towing duties & capabilities
• Towing duties
• Towing distressed vessels to
protective places
• Towing floating facilities and
structures both in ice and open
water
• Performing sea towing of vessels
• Towing winch
• The pull power of winch is 750kN
• Brake holding power max 2400kN
• Towing hook
• One swivelling towing hook
Technical features
& operation
Hull shape
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Asymmetric hull shape
– Port side hull surface strongly inclined to ensure good ice breaking
performance
– Starboard hull surface has vertical side and hull integrated bilge keel
Propulsion Arrangement
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3 x 2 500 kW propulsion units
Asymmetric arrangement
– Ultra high maneuverability
90º
180º
0º
Ship Handling Modes
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Two control positions on the bridge (main SB, aux PS)
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Choice of traditional manual azimuth levers and automated ship motion
joystick control
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Possibility of oblique operation by a setting of fixed course / heading
deviation in the joystick system
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The joystick system is designed with an option for icebreaking mode with
propulsion power control
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Traditional simple autopilot provided as backup for open water transit
Wheelhouse layout
• Asymmetric wheelhouse with excellent view
Wheelhouse layout & visibility sectors
Blind sectors for SB & P-side control stations
Navigation & control stations
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Special navigation & control systems related to vessels duties:
– DP system for RMRS DYNPOS-1 class.
– Autopilot for open water transit mode (Ahead & Astern)
– Night vision camera to ensure the tasks of vessel during bad visibility
– Environment monitoring systems. [RMRS ECO-S notation]
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Control stations
– One man operated bridge [RMRS OMBO notation]
– Machinery monitoring and control in wheelhouse & ECR
– Control station for firefighting in wheelhouse
– Control station for oil recovery system located on cargo deck
– Emergency response center used as ship’s tactical command center
for rescue, fire fighting and oil recovery operations.
Floating Position
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To balance the asymmetric hull shape the deadweight distribution is also
asymmetric to avoid extensive heel
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Empty vessel has almost 9 degrees natural heeling to port side and some
trim fwd.
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Deadweight and tank capacities are mainly located aft and starboard side.
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Rather unusual tank arrangement.
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Special attention from operating crew is needed to maintain optimal floating
position.
Vessels Behavior in Waves
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For oil recovery and salvage operations
the smooth behavior in waves is
necessary
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Special consideration for seakeeping
performance in the hull form
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Passive type roll damping tank located
below main deck.
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Large hull integrated bilge keel installed
on starboard side.
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Extensive seakeeping model test scope.
Seakeeping Characteristics
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Seakeeping model tests for
different operation modes:
– Transit condition
– Oil Recovery operations
– Salvage operations
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Different heading angles and 2
m & 3 m wave heights were
tested.
Oil recovery mode: Stern quarter waves (330
degrees) HS=2m.
NB-508
Multifunctional Rescue Vessel NB-508
Main Data
Length oa
Breadth oa
Breadth dwl
Draught at dwl
Trial speed
Bollard pull
Main engines
Propulsion
Cargo Deck
Deadweight
Range
Gross tonnage
Net tonnage
Crew
Flag
Classification
Ice class
NB-508
76,4 m
20,5 m
19,2 m
6,3 m
14 knots
75 t
3 * 3060 kW
3 * 2,5 MW
380 sqm
1150 t
4500nm/20 days
3800
1140
24 (+12) persons
Russian
RMRS
Icebreaker 6
Classification Russian Maritime Register of Shipping:
KM  Icebreaker6, [1], AUT1-ICS, OMBO, FF3WS, EPP,
DYNPOS-1, ECO-S, Oil recovery ship (>60°C), Salvage ship, Tug,
HELIDECK
Design work for NB-508
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Basic design by Arctech in co operation with Aker Artic
Hull detail design by Yantar Shipyard
Other detail design by Arctech with their subcontractors
3D technology largely utilized in design work
Multifunctional Icebreaker NB-508
Owner:
Concept:
Shipyard:
Design:
Outfitting:
Russian Ministry of Transport
ARC100 concept by AARC and Arctech
OJSC/Yantar, Kaliningrad
Arctech Helsinki Shipyard Oy
Arctech Helsinki Shipyard Oy
Order:
Keel laying:
Launching:
Delivery:
Ice Trials:
October 2011
July 2012
November 2013
Spring 2014
Spring 2014
Many stakeholders
State Customer
Federal Agency of Sea
And River Transport
Construction Manager
The Directorate of State
Customer
Yantar
Shipyard
CNIIMF
(National Rules)
Safety
Authorities
Sanitary
Authorities
RMRS
Page 39
Arctech
Helsinki
Shipyard
06/03/2014
GOS NII GA
© Arctech Helsinki Shipyard
Operator
Baltiskoe Basu
GosMorSpasSlu
zhba
Building of vessel
Main engines lifted wk 34
The Hull Assembly
Page 40
06/03/2014
© Arctech Helsinki Shipyard
Present situation
Complete superstructure
module before hull assembly
High block outfitting degree
Mounting of cabins already
in superstructure block
Page 41
06/03/2014
© Arctech Helsinki Shipyard
Summary
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The concept of the oblique icebreaker is a result of target-oriented product
development process
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Comprehensive ice model tests have been done for the concept by Aker
Arctic
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Extensive seakeeping and maneuvering tests
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Vessel design by Arctech Helsinki Shipyard
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The first application of the concept will be the multifunctional icebreaker for
oil spill response and rescue operation for the Russian Ministry of
Transport
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The first vessel is primarily designed for freezing sub-arctic seas, but the
concept can also be adjusted for more demanding operation conditions
Thank you for your attention