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TECHNICAL FORM C GAS
NAVIGATOR ATLAS
NAVIGATOR GAS
about us
the partner of choice
Navigator Gas is more than a shipping company; we are an international, diverse team of responsible professionals, all working towards creating value to our stakeholders.
We are the owner and operator of the world’s largest fleet of handysize liquefied gas carriers. We provide international seaborne transportation and regional distribution services of liquefied petroleum gas, petrochemical gases and ammonia for energy companies, industrial users and commodity traders. These gases are transported in liquefied form, under cooling temperatures and/or pressure, which can reduce volume by up to 900 times depending on the cargo, making their transportation more efficient and economical.
Our modern fleet has versatile capabilities including ethylene, semi-refrigerated and fully-refrigerated vessels.
DELIVERING VALUE THROUGH STRONG
PARTNERSHIPS
EXPERT
We have unique experience in transporting complex gas cargoes
VERSATILE
We have the world’s largest handysize fleet
SAFETY
Setting the highest standards for safe, reliable and environmentally focussed
shipping solutions
DELIVERING VALUE THROUGH STRONG
PARTNERSHIPS
EFFICIENT
Our modern and eco-design vessels maximise profitability for our customers
GLOBAL
Our large fleet enables global coverage for our customers
FINANCIAL STRENGTH
Our strong financial performance and robust balance sheet will support
our future growth plans
THE FLEET
ETHYLENE CAPABLE FLEET
NEPTUNE
EUROPA
SATURN
TRITON
MARSPLUTO
OBERON
VENUS
UMBRIOATLAS
aurora
NOVA
ECLIPSE
PROMINENCE
SEMI REFRIGERATED FLEET
PHOENIXMAGELLAN PEGASUS ARIES
CERESCENTAURI CETOLIBRA
YAUZA LUGA
SCORPIO TAURUSGEMINI VIRGO
CAPRICORN
LEO
COPERNICO
FULLY REFRIGERATED FLEET
GENESIS
GLORY
GLOBAL
GUSTO
GALAXY
GRACE
Hull 8234
VESSEL BUILT SIZE LOA TANKS
ETH
YLE
NE
CAPA
BLE
Navigator Neptune 2000 22,000 169.97 4
Navigator Pluto 2000 22,000 169.97 4
Navigator Saturn 2000 22,000 169.97 4
Navigator Venus 2000 22,000 169.97 4
Navigator Mars 2000 22,000 169.97 4
Navigator Atlas 2014 21,000 159.97 4
Navigator Europa 2014 21,000 159.97 4
Navigator Oberon 2014 21,000 159.97 4
Navigator Triton 2014 21,000 159.97 4
Navigator Umbrio 2015 21,000 159.97 4
Navigator Aurora 2016 35,000 179.97 3
Navigator Eclipse 2016 35,000 179.97 3
Navigator Nova 2016 35,000 179.97 3
Navigator Prominence 2016 35,000 179.97 3
SEM
I-RE
FRIG
ERA
TED
Navigator Magellan 1998 20,900 159.09 4
Navigator Pegasus 2009 22,000 169.98 4
Navigator Phoenix 2009 22,000 169.98 4
Navigator Aries 2008 20,550 159.97 4
Navigator Capricorn 2008 20,600 159.97 4
Navigator Gemini 2009 20,550 159.97 4
Navigator Scorpio 2009 20,600 159.97 4
Navigator Taurus 2009 20,550 159.97 4
Navigator Virgo 2009 20,600 159.97 4
Navigator Leo 2011 20,600 159.97 4
Navigator Libra 2012 20,600 159.97 4
Navigator Centauri 2015 22,000 159.97 4
Navigator Ceres 2015 22,000 159.97 4
Navigator Ceto 2015 22,000 159.97 4
Navigator Copernico 2016 22,000 159.97 4
Navigator Yauza 2017 22,000 159.95 3
Navigator Luga 2017 22,000 159.95 3
FULL
Y
REFR
IGER
ATE
D
Navigator Glory 2010 22,600 154.17 3
Navigator Grace 2010 22,600 154.17 3
Navigator Gusto 2011 22,600 154.17 3
Navigator Genesis 2011 22,600 154.17 3
Navigator Galaxy 2011 22,600 154.17 3
Navigator Global 2011 22,600 154.17 3
Hull 8234 2017 38,000 180.00 3
REVISION 01 revision date: 01 · 08 · 20131 of 30
TECHNICAL ‘FORM C’ GASNAVIGATOR ATLAS
21,000 cbm ETHYLENE / LPG CARRIER
Specifications of the vessel and the gas installations are believed to be correct as per design specifications and capacities, but not guaranteed, and consequently Owners are not to be held accountable for such. We further reserve our rights for normal wear and tear on cargo equipment in respect of loading, discharging, cooling-rates and time for changing cargo grades etc., including but not limited to capacity of cargo re-heaters, compressors, pumps and other equipment, as described in this Form-C as these descriptions, as described above, refers to design capacities.
GAS FORM C
REVISION 01 2 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
CONTENTS
1.0 VESSEL'S MAIN CHARACTERISTICS 41.1 GENERAL INFORMATION 4
1.2 VESSELS DIMENSIONS AND TONNAGES 6
1.3 LOAD LINES 6
1.4 DEADWEIGHT 7
2.0 CARGO INSTALLATION 82.1 TANK CAPACITIES/INTAKES 8
2.2 TANK CAPACITIES/INTAKES & DRAFTS 8
2.3 MANIFOLD LAYOUT/ARRANGEMENT 9
2.3.1 SIZE OF MANIFOLD CONNECTIONS 9
2.3.2 AVAILABLE REDUCERS 10
2.3.3 CROSS-SECTION OF THE MANIFOLD 11
2.4 PARALLEL BODY LENGTH 12
3.0 MACHINERY 143.1 DECK MACHINERY AND EQUIPMENT 14
3.2 MOORING/ANCHORING EQUIPMENT 14
3.3 ENGINE MACHINERY AND EQUIPMENT 18
3.4 BUNKER/BALLAST/POTABLE WATER INTAKES (LS HFO/LS MDO) 19
3.5 CARGO PUMPS 20
3.6 CARGO COMPRESSORS 20
3.7 FUEL CONSUMPTION 21
4.0 CARRYING CONDITIONS 224.1 LIST OF CARGOES FOR TYPE IIG CARRIER 22
4.2 TRANSPORT CONDITIONS 23
4.3 SIMULTANEOUS TRANSPORT OF DIFFERENT GRADES 23
4.3.1 CARGO TANKS CHARACTERISTICS 23
4.3.2 CARGO DECK TANKS 23
4.4 LOADING 24
4.4.1 LOADING FULLY REFRIGERATED CARGOES 24
4.4.2 LOADING SEMI-REFRIGERATED & AMBIENT CARGOES AT +18ºC ACCORDING 24
4.5 COOLING DOWN 24
4.6 HEAT LOSS DUE TO TANK INSULATION 24
4.7 DISCHARGING 25
4.8 CARGO WARMING UP 25
REVISION 01 3 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
5.0 ADDITIONAL INFORMATION 265.1 CARGO ROB AFTER FULL DISCHARGE 26
5.2 GAS FREEING AND INERTING 27
5.2.1 INERT GAS PLANT 27
5.2.2 DECK FANS 27
5.3 MEASURING APPARATUS 28
5.3.1 CARGO TANKS CHARACTERISTICS 28
5.3.2 CARGO DECK TANKS 28
5.3.3 TANK WALL TEMPERATURE SENSORS 28
5.3.4 CARGO PRESSURE 28
REVISION 01 4 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
1.0 VESSEL’S MAIN CHARACTERISTICS
1.1 General Information
NAMENavigator Atlas
IMO NUMBER9661558
CALL SIGND5FZ2
MMSI636 016 396
REGISTERED OWNERNAVIGATOR ATLAS L.L.C.Trust Company Complex, Ajeltake Road, Ajeltake Island Majuro, Marshall Islands MH96960 Company IMO No. 5409173
NAVIGATOR
FLAGLiberia
PORT OF REGISTRYMonrovia
FLAG OFFICIAL NUMBER16396
KEEL LAID10 July 2013
LAUNCHED03 December 2013
DELIVERED20 June 2014
ICE CLASSE1
CAPNot Applicable (The vessel is < 15Y)
CASNot Applicable (The vessel is < 15Y)
TYPEIIG – Ethylene / LPG / VCM / Ammonia – Carrier
HULLDouble bottom
APPROVALIMO, USCG, MOT, MARPOL and SOLAS
BUILDING SHIPYARDJiangnan Shipyard (Group) Ltd. Co. Hull No. 2530
REVISION 01 5 of 30 revision date: 01 · 08 · 2013
2.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
VESSEL’S MAIN CHARACTERISTICS 1.0
CLASSIFICATION SOCIETYDNV-GL
CLASS REGISTRATION NUMBER117276
CLASS NOTATION+100A5 E Liquefied Gas Tanker Type 2G, IW ERS, NLS, BWM (D1,D2) +MC Aut, RI, CM-PS
COMMERCIAL MANAGER/ OPERATORNAVIGATOR GAS L.L.C. 21 Palmer Street,London, SW1H 0AD United Kingdom Tel +44 (0) 20 7340 4850 Fax +44 (0) 20 7340 4858 E-mail mail@navigatorgas.com
DOC HOLDERNorthern Marine Management Ltd.Alba House, 2 Central Street, Clydebank, G81 2QR, Scotland, United Kingdom Tel +44 (0)1418 763 000 Fax +44 (0)1419 412 791 E-mail nmmvettting@stena.comE-mail nmmoperationsclydebank@stena.comWeb www.nmm-stena.comCompany IMO No. 1039244
P & I CLUBBRITANNIASteam Ship Insurance Association LimitedRegis House,45 King William Street,London, EC4R 9ANUnited KingdomTel +44 (0)20 7407 3588
QUALIFIED INDIVIDUAL (QI) IN USAO'Brien's Response Management Inc. 103 Morgan Lane, Suite 103, Plainsboro, New Jersey 08536, USA. Tel +1 985 781 0804 Tel +1 713 470 1139 (24 Hr)Fax +1 985 781 0580 E-mail commandcenter@obriensrm.com
OSRONational Response Corporation 3500 Sunrise Highway, Suite 103 Great River, New York 11739, USA. Tel +1 631 224 9141Fax +1 631 224 9086E-mail iocdo@nrcc.com
F77 TELEPHONE not applicable F77 FAX not applicable
MINIVSAT (1) +44 141 846 0430 MINIVSAT (2) +44 203 318 0536
MOBILE PHONE not applicable
SAT.A/B/M/F/FB TEL. not applicable SAT.A/B/M/F/FB TEL.2 not applicable
SAT.A/B/M/FB FAX not applicable SAT.A/B/M TLX not applicable
SAT.C TELEX 1 463 716 135 SAT.C TELEX 2 463 716 136
SAT-C EMAIL Vessel.NOR01097@purplefinder.net
INTERNET EMAIL navigatoratlas@nmm.stena.com
REVISION 01 6 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
1.2 vessel dimensions & Tonnages
1.3 load lines
Length Overall 159.99 m Length between perpendiculars 152.81 m
Moulded (Extreme) Breadth 24.83 m Moulded (Extreme) Depth 16.70 m
FW allowance 0.20 m TPC 33.3 mt
Distance Keel – Top Antenna 43.10 m GRT 17,208.0 mt
NRT 5,163.0 mt Suez Canal Tonnage 53,176.3 cbm
Suez GRT 18,771.2 mt Suez NRT 17,897.4 mt
Panama Canal Tonnage 58,278.1 cbm Panama NRT 14,398.0 mt
Lightship Weight 9,102.7 mt
LOAD LINE FREE BOARD DRAFT DEADWEIGHT DISPLACEMENT
Summer 7.31 m 9.40 m 17,000.0 mt 26,137.0 mt
Winter 7.51 m 9.20 m 16,350.0 mt 25,487.0 mt
Tropical 7.12 m 9.59 m 17,770.0 mt 26,837.0 mt
Light ship 12.91 m 3.80 m n/a 9,137.4 mt
Ballast condition 9.81 m † 6.9 m † 9,763.0 mt † 18,900.0 mt
† Note: Arrival Condition
REVISION 01 7 of 30 revision date: 01 · 08 · 2013
2.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
VESSEL’S MAIN CHARACTERISTICS 1.0
1.4 Deadweight
Full Cargo (Ammonia) 16,173.2 mt
Full Cargo (Butadiene) n/a
Full Cargo (Butane) 14,463.4 mt
Full Cargo (Ethylene) 13,845.4 mt
Full Cargo (Propane) 14,113.2 mt
Full Cargo (Propylene) n/a
Full Cargo (LPG) 14,113.2 mt
Full Cargo (VCM) 16,524.2 mt
Ballast 9,721.4 mt
Note: All figures for 95% bunkers
REVISION 01 8 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
2.0 CARGO INSTALLATION
2.1 TANK CAPACITIES/INTAKES
2.2 TANK CAPACITIES/INTAKES & drafts
DENSITY TANK 1 TANK 2 TANK 3 TANK 4 TOTALCubic Meter 100% n/a 4,673 5,474 5,473 5,474 21,095 cbm
Cubic Meter 98% n/a 4,580 5,365 5,364 5,365 20,673 cbm
Ammonia 0.68 3,124 3,659 3,658 3,659 14,099 mt
Butadiene 0.65 2,977 3,487 3,486 3,487 13,438 mt
Butane (n) 0.60 2,757 3,230 3,229 3,230 12,445 mt
Butene-1 0.62 2,858 3,348 3,347 3,348 12,900 mt
Crude-C4 0.62 2,817 3,299 3,299 3,299 12,714 mt
Ethane 0.54 2,469 2,885 2,885 2,885 11,124 mt
Ethylene 0.57 2,597 3,042 3,041 3,042 11,722 mt
LPG Mix (50/50) 0.59 2,688 3,148 3,148 3,148 12,133 mt
Propane 0.59 2,702 3,165 3,165 3,165 12,197 mt
Propylene 0.61 2,789 3,267 3,266 3,267 12,590 mt
VCM 0.97 3,183 3,729 3,728 3,729 14,268 mt
PRODUCT DENSITY (MT/CBM)
TEMP °C (FULLY REF)
TOTAL CARGO MIN DRAFT (30% BUNKERS)
MAX DRAFT (98% BUNKERS)
Ammonia 0.68 −33.5 14,099 mt 8.70 m 9.56 m
Butadiene 0.65 −4.5 13,438 mt n/a n/a
Butane (n) 0.60 −0.5 12,445 mt 8.54 m 9.27 m
Butene-1 0.62 −5.0 12,900 mt 8.64 m 9.35 m
Crude-C4 0.62 −5.0 12,714 mt 8.51 m 9.00 m
Ethane 0.55 −88.7 12,900 mt 8.29 m 9.04 m
Ethylene 0.57 −103.8 12,714 mt 8.42 m 9.16 m
LPG Mix (50/50) 0.60 −20.0 11,722 mt n/a n/a
Propane 0.59 −42.1 12,197 mt 8.47 m 9.20 m
Propylene (pgm) 0.61 −47.3 12,590 mt 8.60 m 9.31 m
Propylene Ox. n/a n/a n/a n/a n/a
VCM 0.97 −13.4 14,368 mt 8.93 m 9.62 m
Note: The maximum intake various with loading temperature. As a general rule the max intake for a “warm” cargo is reduced with approximately 2.5% for every 10°C. Loading Propane (C3) at −30°C instead of −40°C will reduce the max intake with around 250 MT. For detailed intake calculations Owners must be contacted.
Note: Drafts given in table 2.2 are for even keel.
Note: Calculation carried out for SW (1.025 t/m3)
REVISION 01 9 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.0
3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
2.0CARGO INSTALLATION
2.3 MANIFOLD LAYOUT/ARRANGEMENT
TWO SEGREGATION MANIFOLD LAYOUT
Distance from centre of L1 to bow: ~73.2 m
Distance from centre of L1 to stern: ~86.8 m
Liquid connections (N’size) L1: 1 × 8“ / 300 lbsL2: 1 × 12“ / 300 lbsL3: 1 × 6“ / 300 lbs
Vapour Connections (N’size) V1: 1 × 6“ / 300 lbsV2: 1 × 8“ / 300 lbsV2: 1 × 4“ / 300 lbs
MDO HFO L3 L2V3 V1 L1V2 LNG
2.0 m0.8 m
STARBOARD
PORT
BOW
DRIP TRAYDISTANCE TO STERN: 79 m DISTANCE TO BOW: 81 m
NAVIGATOR
STERN
LIQUID (L1, L2, L3)
VAPOUR (V1, V2, V3) Future LNG bunkering manifold
FUEL (MDO, HFO)
KEY
2.0 m 2.0 m 2.0 m 2.0 m 2.0 m 2.0 m
REVISION 01 10 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
2.3.2 AVAILABLE REDUCERS
CONNECTION SIZE
Liquid 12” 300 × 16” 150
Liquid 12” 300 × 12” 150
Liquid 12” 300 × 10” 300
Liquid 12” 300 × 10” 150
Liquid 12” 300 × 8” 300
Liquid 12” 300 × 8” 150
Liquid 8” 300 × 12” 150
Liquid 8” 300 × 10” 300
Liquid 8” 300 × 10” 150
Liquid 8” 300 × 8” 150
Liquid 8” 300 × 6” 300
Liquid 8” 300 × 6” 150
Liquid 8” 300 × 4” 150
Liquid 8” 150 × 12” 150
Liquid 12” 300 – 10” 300(straight) Flat faces
CONNECTION SIZE
Vapour 6” 300 × 6” 150
Vapour 6” 300 × 4” 300
Vapour 6” 300 × 4” 150
Vapour 6” 300 × 3” 150
Vapour 8” 300 × 6” 300 (s-Bend)
Note: Any other dimensions can be sourced and delivered to the vessel
REVISION 01 11 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.0
3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
2.0CARGO INSTALLATION
2.3.3 cross-section of the manifold
A Manifold to side shell 4.45 m
B Manifold to First Support (Cantilever) 0.43 m
C Manifold flange bottom to Drip Tray grating 0.95 m
D Manifold flange bottom to Main Deck 1.30 m
E Manifold to inner Drip Tray edge 0.1 m
F Manifold to outer Drip Tray edge 1.45 m
G WL to Manifold centre (Ballast 25% bunkers) 11.54 m
H WL to Manifold (LPG 75% bunkers) 9.80 m
I WL to Manifold (VCM 75% bunkers) 9.20 m
J Railing 1.11 m
K Manifold flange to Railing 4.25 m
FIRST SUPPORT
RAILING
INLINE VALVE
DRIP TRAY
1.45 m
VCM FULL CARGO
LPG FULL CARGO
NO CARGO
1.30 m0.95 m
0.10 m
1.11 m 9.20 m 9.80 m 11.54 m
0.43 m 4.45 m
4.25 m
REVISION 01 12 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
2.4 parallel body length
A Parallel body length ballast 48 m
B PBL C/L to aft ballast 32 m
C PBL C/L to fwd ballast 16 m
D Parallel body length LPG 52 m
E PBL C/L to aft LPG 36 m
F PBL C/L to fwd LPG 16 m
G Parallel body length scantling (VCM) 54 m
H PBL C/L to aft scantling 37 m
I PBL C/L to fwd scantling 17 m
Note: All figures for 75% bunkers
Note: Parallel body length is important in order to assess the suitability for the vessel to berth at a particular pier. The distance between the fenders at the terminal must correspond to the parallel body length of the vessel at arrival and departure drafts.
NAVIGATOR ATLAS
DISTANCE TO STERN: 79m DISTANCE TO BOW: 81m
REVISION 01 13 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.0
3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
2.0CARGO INSTALLATION
THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK
REVISION 01 14 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
3.0 MACHINERY
3.1 DECK MACHINERY & Equipment
MIDSHIPS CRANE 1 × Hose Handling Crane
Manufacturer McGregor
Hosting Capacity 7.5 t
Outreach 19 m
AFT CRANE 1 × Stores Handling Crane – Starboard
Manufacturer Wuxi Lida Gear Manufacturing Co. Ltd.
Hosting Capacity 2 t
Outreach 8 m
3.2 MOORING/ANCHORING EQUIPMENT
WINDLASSES
Number 2
Manufacturer Pusnes
Driven by Hydraulic Pumpsets
Maximum Pull 171 kN
The windlass and forward mooring winches have “remote stands” for operating them at optimum efficiency and safety.
MOORING WINCHES Combined Mooring Winches
Number 3
Manufacturer Pusnes
Driven by Hydraulic Pumpsets
Maximum Pull 120 kN
ANCHORS
Number of shackles Port/Starboard 10/11 shackles (275/302.5 m)
REVISION 01 15 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION
4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
3.0MACHINERY
MOORING ROPES
Type High performance ropes – Tipto Eight
Number 14 (at standard mooring arrangement)
Diameter 48 mm
Length 220 m
Breaking Strength ~48 mt
EMERGENCY TOWING ARRANGEMENT Yes
Type Fwd – PH 2401-F (Chaffing Chain), S.W.L. 200 mt
Number Aft – PH 2401-A (Coiled Wire), S.W.L. 102 mt
STS CAPABILITIES Yes (as per OCIMF/ICS Ship To Ship transfer guide-liquified gas)
REVISION 01 16 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
3.2 MOORING/ANCHORING EQUIPMENT
FULL VESSEL VIEW
FOCUS AREAS
A
A
B
B
C D
REVISION 01 17 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION
4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
3.0MACHINERY
C D
CRUCIFORM BOLLARD
CLOSED CHOCK
ROLLER
WINCH
MOORING WINCH
BOLLARD
KEY
REVISION 01 18 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
3.3 ENGINE MACHINERY & Equipment
MAIN ENGINE
No. of Cylinders 6
Type 6S50ME-C8.2
Power 7,170 kW / 114 rpm
Fuel Grade HFO 380 CST at 50°C
Main Engine Hudong MAN B&W
The Main Engine is of Electronic ME type with reduced speed with very low fuel consumption and minimum impact on environment. The engine is designed so that it can be converted to use LNG as fuel in the future.
AUXILIARY ENGINE
Number 4
Type 2*6L21/31 + 2*5L21/31
Power 1,140/850 kW (per engine), 3,980 kW (total)
Fuel Grade HFO 380 CST at 50°C
Electrical Current 440 V – 60 cycles
The auxiliary engines are working in “Father/Son” system with two larger and two smaller engines allowing us to operate them at their most fuel efficient point across a wide range of power output.
PROPELLER
Type 4 blade / fixed / right handed
Material Ni – Al Bronze Casting
Manufacturer Dalian DMD
Pitch 4.53 m
Diameter 5.75 m
BOW THRUSTERS n/a
Manufacturer n/a
Type n/a
Power n/a
REVISION 01 19 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION
4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
3.0MACHINERY
3.4 BUNKER/Ballast POTABLE WATER INTAKES (LS HFO/LS MDO)
BUNKER
HFO (HS) 100%98%
775.6 cbm760.1 cbm @ SG 0.998
HFO (LS) 100%98%
493.8 cbm488.3 cbm
MGO 100%97%
455.9 cbm442.2 cbm @ SG 0.850
The ship is designed so that LS HFO can be taken into any of the ships six HFO tanks as required by the trade. Flanges are located aft of the cargo manifold.
HFO can be transferred forward to aft or aft to forward as required to maintain an even keel condition (+/– 0.5m) without having ballast onboard on loaded or part loaded passages.
BALLAST
Storage Capacity 7,465 cbm
Segregated Ballast Yes
Pumps 2 + 1 eductor
Capacity per unit 2× 300 + 60 cbm / hour
Location Engine Room
POTABLE WATER
Storage Capacity 217.6 cbm
Fresh Water Generator Yes
Average daily prod. 20 mts / day
Average daily cons. 7 mts / day
REVISION 01 20 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
3.5 CARGO PUMPS
3.6 CARGO COMPRESSORS
PUMP DETAILS/TYPE DEEP WELL BOOSTER
Quantity 8 2
Manufacturer Svanehoj Svanehoj
Maximum density kg/cbm 0.972 0.680
Capacity Cbm/h nominal 250 250
Location Tank dome Near crossover
Speed RPM 1,785 3,570
Driven by Electric Motor Electric Motor
Power consumption 120 kW 78 kW
COMPRESSORS DETAILS/TYPE CARGO CASCADE
Number 3 2
Manufacturer Burckhardt Mycom
Type 2k-160-2Q_1 (piston) PPN2520 (screw)
Oil Free Yes No
REVISION 01 21 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION
4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
3.0MACHINERY
3.7 FUEL CONSUMPTION
SPEED BALLASTCONSUMPTION AT
WARRANTED SPEED – BALLAST
AT SEA – IN BALLAST
– NO COOLINGTOTAL
SPEED KNOTS IFO380 / IFO180 IFO380 / IFO180 IFO380 / IFO180
Warranted 16.00 25.00 3.0 28.00
Likely 16.00 23.00 3.0 26.00
ECO 15.00 20.00 3.0 23.00
Slow Steam 12.00 15.00 3.0 18.00
IN PORT – LOADING FULLY REF
IN PORT – DISCHARGING
FULLY REF
IN PORT – LOADING WARM
IN PORT – DISCHARGING
HEATED
IFO380 / IFO180 IFO380 / IFO180 IFO380 / IFO180 IFO380 / IFO180
5.00 6.00 7.50 9.00
SPEED LADENCONSUMPTION AT
WARRANTED SPEED – LADEN
AT SEA – LADEN – MAINTAINING (1)
OR COOLING TEMP.(2)TOTAL
SPEED KNOTS IFO380 / IFO180 IFO380 / IFO180 (1)
IFO380 / IFO180 (2)
IFO380 / IFO180 (1)
IFO380 / IFO180 (2)
Warranted 16.00 26.00 3.0 6.0 29.00 32.00
Likely 16.00 24.00 3.0 6.0 27.00 30.00
ECO 15.00 21.00 3.0 6.0 24.00 27.00
Slow Steam 12.00 16.00 3.0 6.0 19.00 22.00
AT SEA †
IN PORT †
†
†Note: Up to and including BFT 3 (All figures Approx.)
Note: Using Nitrogen (N2) generator for grade change / tank conditioning will add 2.5 mt IFO /day.
Note: For SECA area trading, the vessel will use low Sulphur (LS IFO380) on passage.
Note: For EU Port operation MGO will be used for instead of IFO.
Note: Ethylene cooling – Add 2–3 mt/day Aux engine HFO.
Note: The vessel is a single fuel ship MDO/MGO is needed only for incineration, emergency, maintenance and fuel changes in/out from SECA areas. Est 0.1–0.2 mt/day in average.
REVISION 01 22 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
4.0 TRANSPORTABLE PRODUCTS AND TRANSPORT CONDITIONS
4.1 LIST OF CARGOES AS PER CERTIFICATE OF FITNESS
The gas handling and re-liquefaction plant is provided for the transportation of following liquefied gases, their saturated pressure (absolute) ranging between 1 and 6 bar and their saturated temperature between +45° and −104° C.
CARGO UN NUMBER CHEMICAL FORMULA BOILING POINTAnhydrous Ammonia 1005 NH3 −33.3°C
Butadiene 1010 C4H6 −4.4°C
Butene (Butylene) 1012 C4H8 n/a
Commercial Propane† 1978 C3H8 −42.1°C
Ethene (Ethylene) 1962 C2H4 –103.7°C
Ethane 1035 C2H6 −89.0°C
Iso-Butane 1011 C4H10 −11.7°C
Isoprene Monomer (I.P.M.) 1218 C5H8 34.0°C
LPG Mix 1075 n/a Varying
Normal Butane 1011 C4H10 −0.5°C
Propane 1978 C3H8 −42.1°C
Propane†/ Butane Mixtures 1075 n/a Varying
Propane†/ Ethane Mixtures 1075 n/a Varying
Propene (Propylene) 1077 C3H6 n/a
Vinyl Chloride Monomer (V.C.M.) 1086 C2H3Cl −13.4°C
† Maximum Ethane percentage in Commercial Propane during liquid phase at saturated temperature is 7.5 Mol% Ethane at 1.0 bar abs.
REVISION 01 23 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY
5.0ADDITIONAL INFORMATIONCARRYING CONDITIONS 4.0
Three products as per D.1., all three re-liquefied insofar as IMO regulations will be observed. Two products can be cooled, pressure and temperature maintained insofar as IMO regulations will be observed. Three grades can be loaded and discharged simultaneously if done without the use of booster pumps or cargo re-heater.
4.3 Simultaneous Transport of DIFFERENT Grades
4.3.1 CARGO TANKS CHARACTERISTICS
4.3.2 CARGO DECK TANKS
Number of tanks 4
Type bi-lobe – Independent Type C
Max. Tank Pressure IMO 5.30 bar (g)
Max. Permissible Vacuum 0.75 bar (abs.)
Min. Cargo Temperature −104°C
Max. Cargo Density 972 kg/cbm
Washing system if fitted n/a
Number of tanks 1
Tank Size 200 cbm
Max. Pressure 18.0 bar (g)
Min. Cargo Temperature −104°C
Max. Cargo Density 972 kg/cbm
The deck tank can be maintained cooled using one of the cascade systems (For carrying ethylene as cool down parcel).
4.2 TRANSPORT CONDITIONS
Safety Relief Valve Settings 5.4 bar (g) IMO + GL (density 0.680)
Note: The vessel has a USCG waiver and can use 5.4 bar setting also in US.
REVISION 01 24 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
4.4.2. LOADING SEMI-REFRIGERATED & AMBIENT CARGOES AT +18°C
4.5 COOLING DOWN
4.6 Heat Loss due to Tank Insulation
CARGO TANK 1 TANK 2, 3, 4 (EACH)n/a n/a n/a
Average K-Value K = n/a
Cooling down of full cargo at a Sea water temperature of +20°C & +32°C
CARGO START TEMPERATURE AT 20°C (HOURS/1°C) AT 32°C (HOURS/1°C)Ammonia −22°C to −32°C 162 186
Ethylene −100°C to −103°C 63 n/a
Propane −30°C to −42°C 168 168
Propylene −40°C to −47°C 159 112
For propylene at full loading rate, the first 2.5°C can be cooled down during loading using the chiller.
Note: At 20°C with chiller operation during cooling, Propane cargo cools down in 138h and Propylene cargo cools down in 105h.
4.4 LOADING
All Cargoes 2,000 cbm/hr
4.4.1. LOADING FULLY REFRIGERATED CARGOES
Ammonia n/a
Butadiene 2,000 cbm/hr
Butane 2,000 cbm/hr
Propane 420 cbm/hr
VCM 2,000 cbm/hr
REVISION 01 25 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY
5.0ADDITIONAL INFORMATION4.0CARRYING CONDITIONS
4.7 DISCHARGING
IN SERIES IN PARALLEL
No. of pumps able to work simultaneously 2 deep well pumps and 1 booster All deep well pumps
No. of Cargo Grades that can be discharged simultaneously: 3
AGAINST 120 m L.C. AGAINST 240 m L.C.All Cargoes 2,000 cbm/hr 500 cbm/hr
Time to discharge a full cargo using all pumps ~11 hours ~44 hours
4.8 Cargo WARMING UP
Number of Heaters 1
Type Direct cargo heater / vaporizer on open deck
Heating Medium Sea water
From saturated temperature at 1 bar absolute to −2°C (Sea water temperature ~+18°C).
CAPACITIESAnhydrous Ammonia 370 cbm/hr
Propane 450 cbm/hr
Propane / Butane mix 450 cbm/hr
Propene (Propylene) 450 cbm/hr
REVISION 01 26 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
5.0 ADDITIONAL INFORMATION
5.1 Cargo Remaining On Board (ROB) after full dischargeNormal ROB at the end of unloading (at atmospheric conditions).
Vapour Mass / two Tanks Tank 1 (P/S) Tank 2,3,4 (P/S) Total 4 Tanks (P/S)
Ammonia 4.4 mts 5.2 mts 20 mts
Butane 13.5 mts 15.5 mts 60 mts
Ethylene 10.0 mts 12.0 mts 46 mts
Propane 11.5 mts 13.5 mts 52 mts
VCM 14.0 mts 17.0 mts 65 mts
REVISION 01 27 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS
ADDITIONAL INFORMATION 5.0
5.2 Gas Freeing and InertingProducing inert gas and dry air for gas freeing of cargo tanks, gas plant and associated systems in addition to feeding the hold spaces with dry air or inert gas as applicable. The I.G. / Nitrogen Plant is based on pressure swing adsorption “psa”, meaning production of Nitrogen as an Inert Gas.
5.2.1 INERT GAS PLANTThe nitrogen production plant is based on an application of the pressure swing adsorption (PSA-process) and consists of four absorbers which are filled with carbon molecular sieves.
Nitrogen Purity 98.0% 99.5% 99.9%
Capacity 1,800 cbm/hr 1,500 cbm/hr 940 cbm/hr
Dewpoint −50°C −50°C −50°C
GAS COMPOSITION
Nitrogen 98.0% 99.5% 99.9%
Oxygen 2.0% 0.5% 0.1%
Dewpoint at 0.75m HG −50°C −50°C −50°C
Discharge Pressure 6.0 bar (g) 6.5 bar (g) 6.5 bar (g)
Electrical Power Requirement 772 kW
Cooling Water Requirement 85 cbm/hr at 35 m L.C.
Dry Air Production Capacity 4,900 cbm/hr with a dew point of −20°C
In order to optimize energy use and emissions, the system is built with dual compressors allowing power consumption to be optimized for voyages of varying length.
5.2.2 DECK FANSDeck fans are used for drying and venting void spaces with dry air.
Number 0
REVISION 01 28 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
5.3 MEASURING APPARATUS
5.3.1 CARGO LEVEL
Number 1 per Tank dome
Type Closed tank gauging with float
Manufacturer Henry system Holland B.V.
Reading Tank Dome / Cargo Control Room / Bridge
Accuracy +/− 1 mm
5.3.2 CARGO TEMPERATURE
Number 2 × Analogue Thermometers per tank3 × Remote sensors (PT 100) per tank
Reading Tank / Cargo Control Room / Bridge
Accuracy +/− 1°C
Location Liquid (200 mm) Vapour (14,000 mm)
Point 1 (100 mm)
Point 2 (6,000 mm)
Point 3 (12,000 mm)
5.3.3 TANK WALL TEMPERATURE SENSORS Number 5 (PT 100) per tank
Reading Cargo Control Room / Bridge
Accuracy +/− 1°C
Location Tank Wall Outside, acc. to GL Requirements
5.3.4 CARGO PRESSURE Number 1 per tank
Reading Tank Dome / Cargo Control Room / Bridge
Accuracy +/− 0.2 bar
REVISION 01 29 of 30 revision date: 01 · 08 · 2013
VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION
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REVISION 01 30 of 30 revision date: 01 · 08 · 2013
NAVIGATOR ATLAS
SAFETY MANAGEMENT SYSTEM GAS FORM C
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REVISION 01 31 of 30 revision date: 01 · 08 · 2013
SAFETY MANAGEMENT SYSTEM GAS FORM C
T : +44 (0) 2073 404 850 F : +44 (0)20 7340 4858 E : mail@navigatorgas.com
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NAVIGATOR GAS
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