This document provides design details for an oil tanker ship with the following key specifications: - Ship Type: Oil Tanker with capacity of 2900 tonnes - Route: Between Chittagong and Dhaka in Bangladesh - Speed: 10 knots It includes principal particulars, general arrangement drawings, lines plans, hydrostatic calculations and curves, resistance and power calculations, engine and gearbox selection, and designs for the rudder, steering arrangement, and other systems. The document compares the updated design specifications to previous specifications.

1. •

2. Supervised by
Dr. Md. Sadiqul Baree
Professor
Department of Naval Architecture &
Marine Engineering , BUET
Designed by
Mohammad Kifayath Chowdhury
Student No: 1112023
Mahmudur Rahman
Student No: 1112049

3. OBJECTIVE
Ship Type : Oil Tanker
Capacity : 2900 tonnes
Route : Chittagong to Dhaka
Speed : 10 knots

4. Classification :
• According to GL Rules & Guidance 2013
Regulations
• IMO stability Guideline
• THE INLAND SHIPPING ORDINANCE 1976
CLASS & REGULATIONS FOLLOWED

5. • Principal particulars
• Updated general arrangement
• Lines plan
• Hydrostatic calculation & curves
• Scantling
• Resistance and power calculation
• Engine & gearbox selection
• Engine foundation
• Rudder design and steering arrangement
• Updated propeller & shafting design
• Modified lightweight calculation
• Modified capacity plan
• Updated trim calculation
• Updated stability calculation

6. PRINCIPAL PARTICULARS
Length overall( LOA ): 80.3 m
Length between perpendiculars ( LBP ): 77.3 m
Moulded breadth ( B ): 15 m
Moulded depth ( D ): 5.94 m
Moulded draught ( H ) : 3.7 m
Block co-efficient ( CB ) : 0.84
Frame spacing a=0.6m
Web frame spacing 𝑒 = 2.4𝑚

7. MANNING
• Owner : 1 person
• 1st class master : 1 person
• 2nd class master : 1 person
• Sailor : 7 persons
• Inland Marine engineer : 1 person
• 1st class Driver : 1 person
• Greezer : 3 person
• Pumpman : 1 person
• Cook & Assistant cook : 2 person
Total : 18 person [INLAND SHIPPING LAWS AND RULES]

8. UPDATED GENERAL ARRANGEMENT
DRAWING

10. LINES PLAN DRAWING

12. OFFSET TABLE
Waterline spacing=925 mm
Station spacing=7965 mm
The lines plan is modified from Series 60 lines plan of CB 0.8.
Half Breadth (mm) Height above keel(mm)
No.of St. keel WL-1 WL-2 WL-3 WL-4 Deck at Side Keel BTK-A BTK-B BTK-C
0 0 0 0 0 0 6211 3331 3792 4570 0
0.5 0 4319 5450 6170 6654 7382 0 110 1316 5265
1 0 6259 6910 7167 7300 7487 0 17 170 2959
1.5 0 7020 7315 7414 7455 7500 0 5 66 1339
2 0 7294 7429 7472 7488 7500 0 3 45 701
3 0 7392 7463 7486 7495 7500 0 3 38 478
4 0 7424 7473 7490 7497 7500 0 3 35 406
5 0 7430 7478 7491 7498 7500 0 3 34 391
6 0 7425 7481 7493 7499 7500 0 3 33 411
7 0 7407 7482 7495 7499 7500 0 3 33 465
8 0 7352 7462 7483 7490 7500 0 3 33 587
8.5 0 7150 7343 7398 7423 7498 0 4 42 1064
9 0 6476 6815 6950 7029 7271 0 13 128 1983
9.5 0 4574 5002 5179 5352 5929 0 103 1257 0
10 0 0 0 0 0 329 0 0 0 0

13. HYDROSTATIC CALCULATION &
CURVES

14. Water
plane
Dis
(m^3)
Midship Area
(m^2)
Awp
(m^2)
TPC
(t/cm) CM CB BMT(m) LCF(m)
1 569.094 8.011 1010.66 10.107 0.58 0.54 29.426 1.065
2 1637.947 22.939 1034.38 10.344 0.83 0.77 10.750 0.957
3 2625.034 36.224 1040.84 10.408 0.87 0.82 6.797 0.950
4 3692.992 50.652 1074.79 10.748 0.91 0.84 4.978 0.050
Water
plane BML(m)
MCT1(tonnes.m/
m) KB KMT(m) KML(m)
LCB from
midship
(m) Cw Cp
1 709.665 52.996 0.78 30.21 710.45 0.168 0.884 0.932
2 259.038 55.56 1.11 11.86 260.15 0.05 0.903 0.935
3 163.913 56.16 1.59 8.39 165.51 -0.107 0.905 0.945
4 128.073 59.84 2.037 7.016 130.11 -0.211 0.906 0.922
Updated Hydrostatic Particulars:

15. HYDROSTATIC CURVES WITH THE COMPARISON WITH
PREVIOUS CALCULATION DATA
0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
0.000 10.000 20.000 30.000 40.000
Draft(m)
BMT(m)
T vs BMT
Updated Previous
0
1
2
3
4
0.8 0.85 0.9 0.95 1
DRAFT
Cp
DRAFT VS Cp CURVE
Updated Previous

16. 0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
900.000 950.000 1000.000 1050.000 1100.000
Draft(m)
AW (m^2)
T vs WPA
Updated Previous
0.00
0.31
0.63
0.94
1.25
1.56
1.88
2.19
2.50
2.81
3.13
3.44
3.75
4.06
0.00 0.20 0.40 0.60 0.80 1.00
Draft(m)
CB
T vs CB
Updated Previous
0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
0.000 200.000 400.000 600.000 800.000
Draft(m)
BML(m)
T vs BML
Updated Previous
0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
0.000 1000.000 2000.000 3000.000 4000.000
Draft(m)
Displacement (m^3)
T vs ▼
Updated Previous

17. 0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
0.000 200.000 400.000 600.000 800.000
Draft(m)
KML(m)
T vs KML
Updated Previous
0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
0.000 0.200 0.400 0.600 0.800 1.000 1.200
Draft(m)
Cm
T vs CM
Updated Previous
0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
0.000 10.000 20.000 30.000 40.000
Draft(m)
KMT(m)
T vs KMT
Updated Previous
0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
0.000 0.200 0.400 0.600 0.800 1.000 1.200
Draft(m)
LCF (m)
T vs LCF
Updated Previous

18. 0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
9.000 9.500 10.000 10.500 11.000
Draft(m)
TPC(t/cm)
T vs TPC
Updated Previous
0
1
2
3
4
0.87 0.88 0.89 0.9 0.91
DRAFT
Cw
DRAFT VS Cw CURVE
Updated Previous
0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
0.000 20.000 40.000 60.000 80.000
Draft(m)
MCT 1(tonnes.m/cm)
T vs MCT1
Updated Previous
0.000
0.313
0.625
0.938
1.250
1.563
1.875
2.188
2.500
2.813
3.125
3.438
3.750
4.063
-0.400 -0.200 0.000 0.200 0.400 0.600 0.800 1.000
Draft(m)
LCB(m)
T vs LCB
Updated Previous

19. UPRIGHT HYDROSTATIC CURVE FROM MAXSURF

20. FORM CURVES

21. BONJEAN CURVE

22. SCANTLING

23. Previous Updated
Flat Keel Plate 11 mm 11 mm
Bottom plate 9 mm 9 mm
Bilge plate thickness 9 mm 9 mm
Inner Bottom Thickness 6 mm 6 mm
Side shell plate thickness 8 mm 8 mm
Shear strake 8 mm 8 mm
Strength deck plating: 7 mm 7 mm
Center Girder 10 mm 10 mm
Floor plate 9 mm 9 mm
Bracket thickness 10 mm 10 mm
Collision Bulkhead plating 6 mm 7 mm
Other Bulkhead plating 5 mm 5 mm
Longitudinal Bulkhead Plating 7 mm 7 mm
Web plate thickness 9 mm 9 mm
Superstrtc. Side plate 7 mm 7 mm
Superstrtc. Deck plate 7 mm 6 mm
PLATES

24. STRUCTURAL MEMBERS
Dimension Dimension
Item Previous Updated
Center girder T- 1000× 100× 10 T- 1000× 100× 10
Bottom Side girder T 1000x100x8 T 1000x100x7
Bottom longitudinal L- 120x60x8 L- 120x70x7
Inner bottom longitudinal L- 120x60x8 L- 120x70x7
Side stringer T 200x140x6 T 210x150x6
Web frame T 360x190x7 T 430x220x8
Side longitudinals L- 120x60x8 L- 140x50x7
Deck girder T 180x100x8 T 200x110x8
Deck web T 80x60x8 T 130x80x6
Deck longitudinals L 80x60x7 L 90x70x6
Bulkhead stiffener L- 40x20x6 L- 40x40x6
Superstrtc. Deck girder T 170x90x6 T 90x50x6
Superstrtc. Side stringer T 120x60x8 T 80x40x6

29. RESISTANCE & POWER CALCULATION

30. Ship Speed, V 10 knots
Parameter Symbol Values Unit
1. Frictional resistance(Added form factor 1+k1) RF 44.9 KN
2. Appendage Resistance RAPP 1.060498788 KN
3. Wave Resistance RW 4.451403735 KN
4. Additional pressure resistance due
to bulbous bow
RB 0 KN
5. Additional pressure resistance of
immersed transom stern
RTR 0 KN
6. Model-ship correlation resistance RA 11.62453858 KN
Total resistance
RF(l +kl ) + RAPP +
Rw + RB + RTR + RA
62.147 KN
Effective Power PE 319.6861054 KW
Summary of Resistance from Prediction Method by Holtrop &
Mennen.

31. Effective Power PE RT*V 319.6861054 KW
Wake fraction w 0.395 CB + 10 CVCB - 0.23 D/√(BT) 0.283452298
Thrust deduction factor t k*w 0.255107069
Relative rotative effic. ƞ
R
1.02
Shaft efficiency ƞ
s
0.97
Open water efficiency ƞ
o
0.47
Hull Efficiency ƞ
H
(1-t)/(1-w) 1.03955805
QPC 0.498364129
Delivered Power P
D
641.4709379 KW
859.8806137 HP
Shaft Power P
S
661.3102452 KW
886.4748595 HP
Gear efficiency ƞ
g
0.975
Break Power P
B
678.2669182 KW
909.2049841 HP
20% Service margin 813.9203018 KW
1091.045981 HP
Power Calculation:

32. ENGINE
& GEARBOX SELECTION

33. Engine:
MAN 9L 16/24
Rpm: 1200
60Hz, 990 KW
85% MCR: 841.5 KW=1128.01 HP
SFC=197 g/KW-Hr

34. Gear box selection:
Gear ratio 3.4
Shandong Guomao P, V (B) Series Bevel-helical Gear Unit.

35. ENGINE FOUNDATION

36. Dimension
ITEMS Previous Updated
FLOOR PLATE 10 mm ( Thickness ) 10 mm ( Thickness )
Bottom Plating 11 mm (Thickness) 11 mm (Thickness)
INNER BOTTOM PLATING 8 mm ( Thickness ) 8 mm ( Thickness )
Longitudinal girders 14mm ( Thickness ) 15mm ( Thickness )
Foundation bolts 25 mm ( Diameter ) 25 mm ( Diameter )
Face Plate Thickness 20 mm 20 mm
Top plate dimension 285 mm 295 mm ( Width )
Summary

40. RUDDER DESIGN &
STEERING ARRANGEMENT

41. Rudder Area , A 5.007 m2
Aspect ratio 1.75
Rudder Height , b 2.96 m
Rudder Breadth , c 1.69 m
Rudder Torque, Qr 15358.22 Nm

42. Item Number Items Dimensions Material
1 Rudder stock Diameter 100mm Forged steel
2 Coupling bolts Diameter 13.5 mm Forged steel
3 Coupling flanges Thickness 12.15 mm Forged steel
4 Horizontal web Spacing 550mm Forged steel
5 Vertical web Spacing 832mm Forged steel
6 Web plate Thickness 8mm Forged steel
7 Rudder plate Thickness 12 mm Forged steel
8 Pintle Diameter 128 mm Forged steel
9 Liner Thickness 22 mm Bronze
10 Neck bearing Height 190 mm Forged steel
11 Carrier bearing Height 190 mm Forged steel
12 Tiller Diameter 72 mm Forged steel
13 Link chain Diameter 10 mm Forged steel
14 Steering rod Diameter 15 mm Forged steel
15 Bush Thickness 4 mm Lignum vitae
Various rudder components and their corresponding dimensions:

44. STOCK DETAILS

45. Diameter of tiller as 𝒅 = 𝟕𝟐 𝒎𝒎
Diameter of link chain 𝒅 𝒄 = 𝟏𝟎 𝒎𝒎
Diameter of steering rod 𝒅 𝒔 = 𝟏𝟓𝒎𝒎
Selected Steering Gear: MS25-35
Maker: Hydrostar
STEERING ARRANGEMENT

47. UPDATED PROPELLER & SHAFT
DESIGN

48. Updated Particulars Previous Particulars
Number of Blade 4 4
RPM 353 300
Propeller Diameter 1.999m 2.23m
Pitch 1.325m 1.48m
Projected Blade area 1.577m2 2.02m2
Developed Area 1.723m2 2.2055m2
BAR 0.55 0.55
Efficiency,η 0.47 0.51
PROPELLER CHARACTERISTICS

50. Updated particulars Previous particulars
Gear ratio 3.4 4
Shaft speed 353 RPM 300 RPM
Length of shaft 3.912 m 3.912 m
Tensile strength of
shaft material
760 N⁄mm 760 N⁄mm
Diameter of the
shaft
113 mm 87 mm
Thickness of
coupling flange
22.6 mm 17.247 mm
SHAFT DESIGN

52. Shaft Details
SL. NO DESCRIPTION MATERIALS NUMBER OF COMPONENT
1 Cone nut M.B. BS 1
2 Cone nut securing screw M.B. BS 2
3 Propeller key M.B. BS 1
4 Propeller dia X pitch M.B. BS 1
5 Aft. Brg . securing screw M.B. BS 3
6 Cover plate securing screw STEEL BS 3
7 Aft locking ring STEEL BS 1
8 Cover plate STEEL BS 1
9 Lock ring securing screw STEEL BS 3
10 Forward locking ring STEEL BS 1
11 Rubber bearing
12 Sterntube STEEL BS 1
13 Tailshaft 1
14 Forward gland housing G.M. BS 1
15 Forward bearing G.M. BS 1
16 Greasy packing GRAPHITED ASBESTOS 3 turns
17 Gland ring G.M. BS 1
18 Gland studs and nuts M.B. BS 2
19 Coupling key STEEL BS 1
20 Half coupling STEEL BS 1
21 Backing washer STEEL BS 1
22 Locking nut STEEL En7 BS 1
23 Sealing ring BS 1
24 Fwd.brg. securing screw M.B. BS 1
25 Bearing lock ring STEEL BS 1

53. MODIFIED LIGHTWEIGHT
CALCULATION

54. NAME OF ITEMS WEIGHT OF ITEMS
(Tonnes)
VCG about KEEL
(m)
LCG about
AMIDSHIP
(t-m)
MOMENT about
AMIDSHIP
(t-m)
QUANTITY MOMENT about KEEL(t-m)
PARALLEL MIDDLE BODY
Deck beam 20 3.785041622 5.94 22.48314723 2.63448 9.971616
Deck girder 4 3.68817751 5.94 21.90777441 2.63448 9.71643
Deck longitudinal 12 7.893599427 5.94 46.8879806 2.63448 20.79553
Side stringer 4 3.56448863 2.587 9.221332086 2.63448 9.390574
Side longitudinal 18 7.842999431 2.587 20.28983953 2.63448 20.66223
Centre girder 1 6.184443995 0.5 3.092221998 2.63448 16.29279
Side girder 4 13.49333235 0.59 7.961066089 2.63448 35.54791
Bottom longitudinal 14 6.47679953 0.06 0.388607972 2.63448 17.063
Inner bottom longitudimal 12 6.47679953 0.97 6.282495544 2.63448 17.063
Transverse bulkhead 6 27.37500023 2.97 81.30375069 2.52471 69.11394
Longitudinal bulkhead 1 24.40044267 2.97 72.46931474 2.63448 64.28248
Bulkhead stiffener 56 1.905778705 3.56 6.784572189 2.52471 4.811539
Web frame 20 3.004728722 2.97 8.924044303 2.63448 7.915898
Web floor 20 20.01888662 0.57 11.41076538 2.63448 52.73936
Web floor stiffener 204 1.75785678 0.57 1.001978365 2.63448 4.631039
Ballast water partition 2 40.92977481 3.6 147.3471893 2.63448 107.8287
Bracket 272 3.691499238 3.6 13.28939726 2.63448 9.725181
Deck plate 59.37066236 5.94 352.6617344 2.63448 156.4108
Keel plate 8.6685369 0.055 0.47676953 2.63448 22.83709
Bottom plate 42.843231 0.055 2.356377705 2.63448 112.8696
Bilge plate 42.074841 0.53 22.29966573 2.63448 110.8453
Shell plate 52.25052 3.6 188.101872 2.63448 137.6529
Pipes, pumps & accessories 9.33045 3.4 31.72353 2.63448 24.58088
Fender 1.591665 6 9.54999 2.63448 4.19321
Inner bottom plate 1 51.756555 1.004 51.96358122 2.63448 136.3516
Total 450.3761111 1140.178998 0 1183.293

55. ENTRANCE
Anchor 1 3.18333 7.8 24.829974 36.8827 117.4099
Mooring ropes 0.933045 7.6 7.091142 36.5534 34.10598
Chain cable 1 3.018675 7.8 23.545665 35.1264 106.0352
Stringers 1.042815 3.6 3.754134 32.931 34.34094
Bollard 4 0.65862 8 5.26896 36.8827 24.2917
Hawse pipes 0.164655 7.8 1.284309 36.5534 6.018702
Stem bar 1 1.701435 6.4 10.889184 42.0419 71.53158
Forecastle deck plate 9.00114 7.25 65.258265 36.2241 326.0582
Searchlight 1 0.10977 8.85 0.9714645 42.0419 4.61494
Keel plate 0.735459 0.055 0.040450245 31.7652 23.36203
Bottom plate 3.51264 0.055 0.1931952 31.7652 111.5799
Bilge plate 3.545571 0.53 1.87915263 32.931 116.7592
Shell plate 3.819996 3.6 13.7519856 32.931 125.7963
Pipes, pumps & acessories 2.08563 3.5 7.299705 31.7652 66.25054
Bracket 0.32931 3.5 1.152585 32.1516 10.58785
Deck girder 4 0.954999 8.9 8.4994911 32.1516 30.70478
Deck longitudinal 12 1.920975 8.9 17.0966775 32.1516 61.76248
Side stringer 3 1.064769 3.7 3.9396453 32.1516 34.23406
Side longitudinal 10 0.757413 3.7 2.8024281 32.1516 24.35206
Centre girder 1 0.636666 0.55 0.3501663 32.1516 20.46985
Side girder 4 2.030745 0.59 1.19813955 32.1516 65.29177
Bottom longitudinal 12 0.976953 0.06 0.05861718 32.1516 31.41063
Inner bottom longitudimal 10 1.042815 0.97 1.01153055 32.1516 33.52821
Collision bulkhead 1 6.289821 3.96 24.90769116 36.8827 231.9857
Wash bulkhead 1 3.830973 3.96 15.17065308 38.4195 147.1841
Bulkhead stiffener 12 2.030745 4 8.12298 32.931 66.87446
Web frame 4 0.450057 2.97 1.33666929 34.2318 15.40625
Web floor 4 2.568618 0.57 1.46411226 34.2318 87.92835
Web floor stiffener 24 0.384195 0.57 0.21899115 35.0166 13.45321
Inner bottom plate 6.641085 1.004 6.66764934 35.0825 232.9858
Deck beam 4 1.042815 8.9 9.2810535 34.2318 35.69741
Total 66.465735 269.3366665 0 2312.012
NAME OF ITEMS WEIGHT OF ITEMS
(Tonnes)
VCG about KEEL
(m)
LCG about
AMIDSHIP
(t-m)
MOMENT about
AMIDSHIP
(t-m)QUANTITY MOMENT about KEEL(t-m)

56. NAME OF ITEMS WEIGHT OF ITEMS
(Tonnes)
VCG about KEEL
(m)
LCG about
AMIDSHIP
(t-m)
MOMENT about
AMIDSHIP
(t-m)QUANTITY MOMENT about KEEL(t-m)
RUN
Propeller 1 2.08563 1.28 2.6696064 -37.761 -78.75522
Propeller shaft 1 1.042815 1.27 1.32437505 36.6632 38.23291
Rudder & steering arrangement 1 2.579595 3.32 8.5642554 -38.192 -98.5206
Engine 1 15 1.5 22.5 -31.605 -474.0747
Gear box 1 1.920975 1.29 2.47805775 -32.821 -63.04876
Transverse bulkhead 2 8.507175 3.13 26.62745775 -32.821 -279.2159
Wood , outfits & accessories 76.839 10.2 783.7578 -30.406 -2336.389
Stairs & railing 2.1954 12.5 27.4425 -31.284 -68.68188
Funnel & mast 1.64655 14.6 24.03963 -39.517 -65.06705
Bollard & capstan 6 1.0977 6.9 7.57413 -39.473 -43.32983
Mooring ropes 1.31724 6.9 9.088956 -34.171 -45.01194
Hatch & hatch coaming 2.74425 6.4 17.5632 -31.592 -86.69581
Auxiliary machinery 3.18333 2.1 6.684993 -28.979 -92.25061
Generator 3.2931 2.3 7.57413 -29.199 -96.15463
Engine foundtion scantling weight 2.85402 1.1 3.139422 -30.904 -88.19934
Deck beam 6 1.470918 5.94 8.73725292 -33.141 -48.74719
Deck girder 4 1.56619836 5.94 9.303218258 -33.141 -51.90485
Deck longitudinal 12 2.52471 5.94 14.9967774 -33.141 -83.67056
Side stringer 4 1.712412 2.587 4.430009844 -33.141 -56.75047
Side longitudinal 8 1.284309 2.587 3.322507383 -33.141 -42.56285
Centre girder 1 1.42701 0.55 0.7848555 -33.141 -47.29205
Side girder 4 4.654248 0.59 2.74600632 -33.141 -154.2449
Bottom longitudinal 12 1.405056 0.06 0.08430336 -33.141 -46.56448
Inner bottom longitudimal 10 1.405056 0.97 1.36290432 -33.141 -46.56448
Bulkhead stiffener 12 2.30517 3.56 8.2064052 -33.141 -76.39486
Web frame 6 1.108677 2.97 3.29277069 -33.141 -36.74229
Web floor 6 7.815624 0.55 4.2985932 -33.141 -259.0149
Web floor stiffener 48 0.603735 0.55 0.33205425 -33.141 -20.00818
Bracket 64 0.713505 3.6 2.568618 -33.141 -23.64603
Deck plate 13.28217 5.94 78.8960898 -29.857 -396.5716
Keel plate 1.602642 0.055 0.08814531 -30.947 -49.59769
Bottom plate 8.605968 0.055 0.47332824 -33.151 -285.2925
Bilge plate 8.441313 0.53 4.47389589 -31.943 -269.6415
Shell plate 10.4018052 3.6 37.44649872 -31.943 -332.2656
Pipes, pumps & acessories 4.61034 3.2 14.753088 -39.407 -181.6817
Others 3.84195 3.1 11.910045 -37.322 -143.3885
Inner bottom plate 6.36666 1.004 6.39212664 -34.578 -220.1435
Super structure 0 0 0 0
Deck girder 10 3.051606 10.14 30.94328484 -29.956 -91.41462
Deck longitudinal 24 2.140515 10.14 21.7048221 -29.956 -64.12177
Deck plate 3 21.51492 10.9 234.512628 -29.089 -625.8486
Side stringer 8 1.0779414 10.4 11.21059056 -36.171 -38.99066
Side longitudinal 14 2.206377 10.36 22.85806572 -36.171 -79.80777
Superstructure shell plate 15.532455 10.13 157.3437692 -35.017 -543.8942
FRONT &back plate 15.58734 11.17 174.1105878 -35.675 -556.0823
Roof of wheel house 1 0.98793 13 12.84309 -29.956 -29.59466
Total 265.494991 1835.454846 0 -8779.607

57. Total lightweight =782.336 tonne
LCG= -6.754 m
VCG=4.147 m
Our preliminary assumed lightweight was 730.4 tonnes
So here we have a difference of lightweight of (782.336-730.4) or
51.936 tonnes.

58. MODIFIED CAPACITY PLAN

59. Frames Port (Tonne) Starboard(Tonne) LCG From Amidship (m) VCG From keel (m)
Oil tank 1 106-120 156.11064 156.11064 28.73 3.47
Oil tank 2 89-106 237.57132 237.57132 19.47 3.47
Oil tank 3 72-89 253.87824 253.87824 9.49 3.47
Oil tank 4 56-72 237.95436 237.95436 -0.313 3.47
Oil tank 5 39-56 253.49688 253.49688 -10.115 3.47
Oil tank 6 22-39 253.7724 253.7724 -20.23 3.47
Hatch 25-38 57.6576 57.6576 -20.23 6.44
CARGO TANK CAPACITY

60. Total Tank Volume 3453.432 m3
TOTAL CAPACITY OF OIL 2900.88288 TONNE
COMBINED MOMENT OF ALL OIL TANKS FROM AMIDSHIP 5162.40668 tonnes-m
COMBINED LCG OF ALL OIL TANKS FROM AMIDSHIP 1.779598451 m
COMBINED MOMENT OF ALL OIL TANKS FROM
KEEL
10408.54974 tonnes-m
COMBINED VCG OF ALL OIL TANKS FROM KEEL 3.588062727 m

61. BALLAST TANK CAPACITY
Total Ballast Capacity
Volume
(m3)
Capacity
(m3)
LCG
(m)
Moment(tonnes-m) VCG
(m)
Moment
(tonnes-m)
Aft Peak Tank 18.288 17.00784 -39.416 -670.3810214 4.987 84.818
Fore Peak Tank 82.576 76.79568 35.12 2697.064282 3.11 238.83
Ballast Tank 1 65.196 60.63228 28.136 1705.94983 0.512 31.0437
Ballast Tank 2 130.798 121.64214 19.48 2369.588887 0.52 63.253
Ballast Tank 3 139.844 130.05492 9.474 1232.140312 0.523 68.018
Ballast Tank 4 132.194 122.94042 -0.312 -38.35741104 0.524 64.420
Ballast Tank 5 139.056 129.32208 -10.091 -1304.989109 0.526 68.023
Ballast tank 6 129.916 120.82188 -20.122 -2431.177869 0.532 64.277
SUM 837.868 779.21724 22.269 3559.8379 11.234 682.690
LCG with all ballast tank Full=4.56m
VCG with all ballast tank Full=0.876m
Total Ballast Capacity= 779.2 tonnes (Keeping 7% allowance
for the structural components)

62. SUMMARY
BALLAST WATER WEIGHT 6 Tonnes
TOTAL MOMENT OF ALL BALLAST TANK ABOUT AMIDSHIP -236.496 Tonnes-m
TOTAL WEIGHT OF OIL IN ALL OIL TANKS 2900.8 Tonnes
TOTAL MOMENT OF ALL OIL TANK ABOUT AMIDSHIP 5162.88 Tonnes-m
WEIGHT OF OTHER DEADWEIGHT ITEM 22 Tonnes
TOTAL MOMENT OF OTHER DEADWEIGHT ITEMS ABOUT AMIDSHIP -770 Tonnes-m
TOTAL WEIGHT OF STRUCTURAL ITEMS IN THE SHIP 782.336 Tonnes
TOTAL MOMENT OF STRUCTURAL ITEMS IN THE SHIP -4966.268 Tonnes-m
TOTAL WEIGHT 3711.136 Tonnes
LCG OF THE WHOLE SHIP ABOUT AMIDSHIP -0.2182308 m
LCG OF SHIP
FULL LOADED

63. LCG OF SHIP
Ballast Condition (Aft peak and ballast tank 6 filled)
BALLAST WATER WEIGHT 212.492 Tonnes
TOTAL MOMENT OF ALL BALLAST TANK ABOUT AMIDSHIP 3559.8379 Tonnes-m
WEIGHT OF OTHER DEADWEIGHT ITEM 22 Tonnes
TOTAL MOMENT OF OTHER DEADWEIGHT ITEMS ABOUT AMIDSHIP -770 Tonnes-m
TOTAL WEIGHT OF STRUCTURAL ITEMS IN THE SHIP 782.336 Tonnes
TOTAL MOMENT OF STRUCTURAL ITEMS IN THE SHIP -4966.268 Tonnes-m
LCG OF THE WHOLE SHIP ABOUT AMIDSHIP -1.3143995 m

64. BALLAST WATER WEIGHT 6 Tonnes
TOTAL MOMENT OF ALL BALLAST TANK ABOUT AMIDSHIP 29.922 Tonnes-m
TOTAL WEIGHT OF OIL IN ALL OIL TANKS 2900.8 Tonnes
TOTAL MOMENT OF ALL OIL TANK ABOUT KEEL 10408.55 Tonnes-m
WEIGHT OF OTHER DEADWEIGHT ITEM 22 Tonnes
TOTAL MOMENT OF OTHER DEADWEIGHT ITEMS ABOUT AMIDSHIP 87.12 Tonnes-m
TOTAL WEIGHT OF STRUCTURAL ITEMS IN THE SHIP 782.336 Tonnes
TOTAL MOMENT OF STRUCTURAL ITEMS IN THE SHIP 3223.22 Tonnes-m
VCG OF THE WHOLE SHIP ABOUT AMIDSHIP 3.704744854 m
VCG of ship
FULL LOADED

65. VCG of ship
Ballast Condition
BALLAST WATER WEIGHT 212.492 Tonnes
TOTAL MOMENT OF ALL BALLAST TANK ABOUT AMIDSHIP 179.1371 Tonnes-m
WEIGHT OF OTHER DEADWEIGHT ITEM 22 Tonnes
TOTAL MOMENT OF OTHER DEADWEIGHT ITEMS ABOUT AMIDSHIP 118.8 Tonnes-m
TOTAL WEIGHT OF STRUCTURAL ITEMS IN THE SHIP 782.336 Tonnes
TOTAL MOMENT OF STRUCTURAL ITEMS IN THE SHIP 3223.22 Tonnes-m
VCG OF THE WHOLE SHIP ABOUT AMIDSHIP 3.462883693 m

66. Preliminary deadweight= 2921.557 tonnes
Updated deadweight = 2928.8 tonnes
Deadweight Difference = 7.24 tonnes
Lightweight Difference =51.936 tonnes
Preliminary assumed displacement with deadweight co-efficient 0.8= 3651.96 tonnes
Updated displacement = 3711.136 tonnes
Difference = 59.176 tonnes
To compensate for the additional displacement CB of the ship was increased from 0.83 to
0.84.

67. UPDATED TRIM CALCULATION

68. Units Previous Updated
Displacement Tonnes 3688 3711.136
LOA M 76.2 80.3
Draft M 3.96 3.7
LCG m(aft) 0.066 0.218
LCB m(aft) -0.816 0.212
MCT 1m tonne – m/m 4932.77 5984.23
LCF m 0.046 0.05
Trim m 0.659429894 0.003720916
Aft Trim M 0.329316866 0.001858141
Fore Trim m 0.219497167 0.000930939
Aft Draft m 4.289316866 3.701858141
Fore draft m 3.740502833 3.699069061
Here,
TRIM=(LCG-LCB)*∆ /MCT 1m
Change in Draft Aft=(L/2-CF)*Trim/L
Final Draft Aft=Draft+Change in Draft Aft
Final Draft Forward=Draft-Change in Draft Aft
So the ship is trimmed by stern.
FULL LOAD CONDITION

69. UPDATED STABILITY CALCULATION

70. RIGHTING LEVER CURVE FOR BALLAST CONDITION

71. IMO VALIDITY( IMO A.749(18) CH3)
Parameter IMO min value
Obtained
value
Remarks
Area up to 30 degree 0.055 m radian 1.15 Satisfied
Area up to 40 degree 0.09 m radian 1.67 Satisfied
Area between 30 to 40
degree
0.03 m radian 0.512 Satisfied
GZ maximum 0.20m at ≥30 deg 2.986 Satisfied

72. RIGHTING LEVER CURVE FOR FULL LOADED CONDITION

73. IMO VALIDITY (IMO A.749(18) CH3)
Parameter IMO minimum value
Obtained
value
Remarks
Area up to 30 degree 0.055 m radian 0.464 Satisfied
Area up to 40 degree 0.09 m radian 0.72 Satisfied
Area between 30 to 40
degree
0.03 m radian 0.258 Satisfied
GZ maximum 0.20m at ≥30 deg 1.506 Satisfied

74. THANK YOU