866-B155-01_Rev 2_INTACT STABILITY ANALYSIS_10-12-21.pdf

Table of Contents

HULL PARTICULARS

NOTES REGARDING STABILITY AND LOADING OF THE VESSEL

General Notes Units Used in this Stability Booklet Coordinate System Notes to the Master Operation Instructions

INSTRUCTIONS FOR COMPUTATION OF VESSEL’S TRIM AND

STABILITY

Notes on Stability Calculation Methods

LOADING CONDITIONS

Notes on Free Surface Critical Points Windage Profile Drawing

CONCLUSION

Summary of Intact Stability Analysis

APPENDIX

Appendix A: GENERAL ARRANGEMENT Appendix B: TANK ARRANGEMENT Appendix C: CRANE DATA Appendix D: INTACT STABILITY CALCULATIONS

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HULL PARTICULARS

Hull Number 866

Type of Vessel CRANE BARGE

Owner US ARMY CORPS OF ENGINEERS (USACE)

Length Overall 150’-0”

Breadth Molded 50’-0”

Depth Molded 10’-0” (At Side Shell)

10’-4” (At Centerline)

Maximum Draft 5’- 6”

Light Ship (without Spuds & Spud collar) 730.68 Long Tons

Light Ship (with Spuds & Spud collar) 772.14 Long Tons

Full Load Displacement 1084.52 Long Tons

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NOTES REGARDING STABILITY AND LOADING OF THE VESSEL

General Notes

Compliance with the stability criteria as indicated does not ensure immunity against capsizing, regardless of the circumstances, or absolve the Master from his responsibilities. The Master should therefore exercise prudence and good seamanship having regard to the season of the year, weather forecasts and the navigational zone and should take the appropriate action as to speed and course warranted by the prevailing circumstances.

Before a voyage commences, care should be taken to ensure that the sizeable pieces of equipment have been properly stowed to minimize the possibility of both longitudinal and lateral shifting while underway.

The loading conditions and the stability results computed in this booklet have been provided by using General Hydrostatics software. GHS is an advanced naval architectural software program which produces accurate results based on individual hydrostatics calculations for each condition rather than on the traditional method of using tabulated Hydrostatics and Cross-Curves values applied to a weight total. The results cannot be directly verified by the traditional longhand methods. These instructions have been prepared as an aid to operating personnel using this Trim and Stability Booklet to determine the vessel’s operating metacentric height (corrected available GM), trim, and drafts for any condition of loading or operation.

It will be the master’s responsibility to always maintain the vessel in a satisfactory stability condition, so as to comply with the stability requirements set forth in this booklet.

Units Used in this Stability Booklet Weights and displacement Long ton (Lt) (=2,240 lbs.)

Vertical Centre of Gravity (VCG or KG) feet (ft) Longitudinal Centre of Gravity (LCG) feet (ft) Transverse centre of Gravity (TCG) feet (ft) Longitudinal Centre of Buoyancy (LCB) feet (ft) Longitudinal Centre of Flotation (LCF) feet (ft) Drafts feet (ft) Metacentric height above baseline (KMT) feet (ft) Metacentric height above VCG (GMT) feet (ft) Righting arm (GZ) feet (ft) Freeboard feet (ft) Moment to change trim by one inch (MCT) Long ton-foot per inch (Lt-ft/in) Immersion Long tons per inch (Lt/in) Area under GZ curve foot-degrees (ft-deg) Angles degrees (deg) Moments (MMT) Long tons-foot (Lt-ft) Specific gravity (S.G. or SG) non-dimensional

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Coordinate System Axis Reference Origin +ve Direction Vertical Baseline Up Longitudinal Fr. 0 Aft Transverse Centerline Starboard

Notes to the Master

1) No fixed ballast or such weights shall be added, removed, altered and/or relocated without the authorization and supervision of the qualified Naval Architect.

2) Any openings could allow water to enter the hull should be kept closed when rough weather or sea conditions exist or are anticipated.

3) The vessel’s bilges and voids shall be kept pumped to minimum content all times consistent with pollution prevention requirements.

4) Deck freeing ports shall be always maintained operable and completely unobstructed.

5) You should make every effort to determine the cause of any list of the vessel before taking corrective action.

6) The free surface moment for each slack non-consumable tank should be taken as the maximum possible free surface moment for that tank.

Operation Instructions

1. ROUTE: Operation on exposed waters in Great Lakes is permitted. Operation Instructions shall be followed, and specified load conditions shall be verified during the tow.

2. FREEBOARD AND DRAFT: The barge is designed for a maximum of 5’- 6” draft per the contract specifications. A freeboard of at least 4’- 6” from the main deck measured at midship of the vessel at Fr-13 must be maintained at full load condition. This corresponds to a baseline draft of feet measured at amidships. Trim shall be minimized. The barge shall be maintained at even keel prior to any crane lifting operation.

3. TANKS: All hatches and manholes shall be kept always closed when underway.

4. DECK CARGO: The maximum weight and VCG of deck cargo shall not exceed 76.8 LT and 14.00 ft from the baseline (4.00 ft above main deck) at full load.

5. CRANE CONFIGURATION:

A Manitowoc make crane has been used in this report.

Model: Manitowoc Model 14000 Series 3 Crawler crane

Boom: 95 foot and 125-foot Boom

See Appendix C for the crane data.

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6. LIFTING OPERATIONS: There shall be four spud wells on the barge sized to fit three identical spuds. The spuds shall be designed to safely operate within the following environmental conditions:

Varying bottom conditions, primarily soft soil during operations (mud).

Maximum soil penetration of 15 feet.

Maximum wind speed of 25 miles per hour.

Maximum river current speed of 10 miles per hour.

Operational conditions of 2 spuds simultaneously

7. WATERTIGHT BULKHEADS: No watertight bulkheads shall be removed or altered without the authorization and supervision of the qualified Naval Architect.

8. WEIGHT AND CHANGES: This stability report is issued based upon the following estimated lightship parameters:

Weight 730.68 Long Tons VCG 6.63 Feet above Baseline LCG 78.62 Feet Aft of Fr.0 TCG 0.04 Feet off Centerline towards port

Any alteration resulting in a change in these parameters will invalidate this stability report. No fixed ballast or other such weight may be added, removed, altered, and or relocated without the authorization and supervision of the qualified Naval Architect.

9. HULL OPENINGS: Any openings that could allow water to enter the hull should be kept closed when rough weather sea conditions exist or are anticipated.

10. BILGE: The vessel’s bilges and voids shall be kept always pumped to minimum content.

11. LIST: The cause of any list of the vessel will be determined before taking corrective action.

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INSTRUCTIONS FOR COMPUTATION OF VESSEL’S TRIM AND

STABILITY

Any alteration resulting in a change in the light ship parameters will invalidate this stability report.

No fixed ballast or other such weight may be added, removed, altered, and or relocated without the authorization and supervision of the qualified Naval Architect.

This Stability Analysis Report is based on the General Hydrostatics Software calculations of the vessel which was performed by Technology Associates Inc. This stability document follows:

USCG 46 CFR 170.170 – Weather Criterion in Intact Condition

USCG 46 CFR Part 174 of Subpart B – Special Rules pertaining to Deck Barges in Intact condition

This stability report is intended to provide information necessary for ABS/USCG to issue a stability letter for the vessel. This report is based on the estimated lightship & CG values. The stability shall be updated with final “as-inclined” lightship particulars and is prepared for final review/application for a stability letter.

Notes on Stability Calculation Methods The results presented in this Stability Analysis Report have been calculated using General Hydrostatics software. GHS is an advanced naval architectural software program which produces accurate results based on individual hydrostatics calculations for each condition rather than on the traditional method of using tabulated Hydrostatics and Cross-Curves values applied to a weight total. The results cannot be directly verified by the traditional longhand methods.

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Minimum Standards for Weather Stability

USCG 46 CFR 170.170 – Weather criteria.

Each vessel must be shown by design calculations to have a metacentric height (GM) that is equal to or greater than the following in each condition of loading and operation:

𝐺𝑀 ≥

𝑃𝐴𝐻

𝑊𝑡𝑎𝑛(𝑇)

Where

P = 0.005 + (L/14,200)2 tons/ft2 . . . for ocean service, Great Lakes winter service, or service on exposed waters.

L = LBP in feet.

A = projected lateral area in square feet of the portion of the vessel and deck cargo above the waterline.

H = the vertical distance in feet from the center of A to the center of the underwater lateral area or approximately to the one-half draft point.

W = displacement in long tons.

T = the lesser of either 14 degrees heel or the angle of heel in degrees at which one-half the freeboard to the deck edge is immersed; or

The deck edge is taken as the intersection of the side shell and the uppermost continuous deck below which the side shell is weathertight.

Wind profile calculation was based on a crane at its minimum working radius and spuds held up.

The total windage area is the summation of the projected exposed hull and the additional area above main deck. This will be used in wind pressure calculations to calculate required GM.

Minimum Standard for Intact Stability

USCG 46 CFR Part 174 of Subpart B – Special Rules pertaining to Deck Barges in Intact condition.

(a) The barge must be shown by design calculations to have an area under the righting arm curve up to the angle of maximum righting arm, the down flooding angle, or 40 degrees, whichever angle is smallest, equal to or greater than –

(1) 15 foot-degrees (4.57 meter-degrees) for ocean and Great Lakes winter service.

(b) Down flooding angle means the static angle from the intersection of the vessel's centerline and waterline in calm water to the first opening that does not close watertight automatically.

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LOADING CONDITIONS

A three-dimensional (3D) model of barge from RHINO software has been used to generate the load conditions in GHS. The units used in this document are long tons (LT) and feet (ft). The load conditions provided in this document have been selected to demonstrate vessel compliance with the Intact Stability Criteria. The results in this report are based on Intact stability criteria, analyzed at various loading conditions without ballast and the Crane stowed are mentioned below:

1. Lightship Condition (without ballast and Crane stowed)

2. Full Load Condition (without ballast and Crane stowed)

3. 50%Load Condition (without ballast and Crane stowed)

4. 10%Load Condition (without ballast and Crane stowed)

Notes on Free Surface For all conditions, the initial metacentric height should be corrected for the effect of free surface of liquids in tanks.

For each type of non-consumable fluid, the free surface for any slack tank should be taken as the maximum free surface of that tank. For any tank which is empty or pressed the free surface may be taken as zero.

Critical Points The critical down flooding points are:

S.no. Down flooding points LCG (in ft aft of FR.0) TCG (in ft OCL) VCG (in ft ABV

Baseline)

1 ER EXHAUST (S) 118.50 7.75 22.25

2 ER EXHAUST (P) 118.50 -7.75 22.50

3 ER SUPPLY (P) 130.00 -12.70 13.00

4 ER SUPPLY (S) 121.50 7.75 13.00

5 STAIRS (S) 57.00 22.15 11.25

6 STAIRS (P) 57.00 -22.15 11.25

7 FWD BALLAST VENT (C) 15.00 -15.00 12.50

8 FWD BALLAST VENT (S) 8.50 23.00 12.50

9 FWD BALLAST VENT (P) 8.50 -23.00 12.50

10 FRESHWATER VENT 34.00 -15.00 12.50

11 SEWAGE VENT 34.00 15.00 12.50

12 FUEL VENT (P) 52.00 -1.00 12.50

13 FUEL VENT (S) 52.00 1.00 12.50

14 AFT BALLAST VENT (S) 141.50 23.00 12.50

15 AFT BALLAST VENT (P) 141.50 -23.00 12.50

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Windage Profile Drawing

Windage profile area above waterline under full load condition (A) The vertical distance from the center of (A) to the center of the underwater lateral area or approximately to the one-half draft point is H.

Note: The above A and H values are calculated by GHS. Refer to appendix D for details.

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CONCLUSION

The results of the analysis indicate that the barge intact stability satisfies 46 CFR 170.170- Weather Criteria and 46 CFR Part 174 of Subpart B – Special Rules pertaining to Deck Barges in Intact condition.

Summary of Intact Stability Analysis

WIND SPEED = 21.72 knots 46 CFR 170.015

Stability criteria

S.no LOAD CONDITIONS DISPL.

(LT)

DRAFT AT

AMIDSHIPS

(ft)

TRIM

(ft)

Heel (deg) (+ve stbd)

Area from equilibrium to ABS 40 or max > 15 ft.

deg

1 LIGHTSHIP CONDITION(LS) 730.68 3.771 1.12a -0.04 188.58 PASS

FULL LOAD DEPARTURE

(LIGHTSHIP + 98%

CONSUMABLES + DECK-

CARGO + CRANE STOWED)

1084.52 5.498 2.74f 0.39 87.86 PASS

MID-VOYAGE (LIGHTSHIP +

50% CONSUMABLES +

50%DECK-CARGO + CRANE

STOWED)

1035.4 5.257 2.96f 0.46 93.76 PASS

ARRIVAL (LIGHTSHIP + 10%

CONSUMABLES +

10%DECK-CARGO + CRANE

STOWED)

997.23 5.07 3.16f 0.54 97.99 PASS

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APPENDIX

Appendix A GENERAL ARRANGEMENT Appendix B TANK ARRANGEMENT Appendix C CRANE DATA Appendix D INTACT STABILITY CALCULATIONS

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Appendix A: GENERAL ARRANGEMENT

Appendix B: TANK ARRANGEMENT

Appendix C: CRANE DATA

Appendix D: INTACT STABILITY CALCULATIONS

10/12/21 02:41:33 Technology Associates, Inc

GHS 16.60A CRANE BARGE CELRE

LC-1 (LIGHTSHIP)

WEIGHT and DISPLACEMENT STATUS Baseline draft: 3.211 @ 0.00, 4.332 @ 150.00a Trim: Aft 1.12/150.00, Heel: Port 0.04 deg.

Part------------------------------Weight(LT)----LCG-----TCG-----VCG-------FSM LIGHTSHIP 730.68 78.62a 0.04p 6.63

Total Weight--------> 730.68 78.62a 0.04p 6.63 Load-----SpGr-----Weight(LT)----LCG-----TCG-----VCG

Total Tanks---------> 0.00 0.0 Displ(LT)----LCB-----TCB-----VCB------RefHt

HULL 1.000 730.65 78.66a 0.04p 1.94 -3.21

Righting Arms: 0.00 -0.00s Distances in FEET.-------------------------------------------Moments in Ft-LT.

FREEBOARD STATUS

Baseline draft: 3.211 @ 0.00, 4.332 @ 150.00a Trim: Aft 1.12/150.00, Heel: Port 0.04 deg.

Least freeboard is 5.29 Ft located at 150.00a

Least extra freeboard (to margin line) is 5.04 Ft located at 150.00a

LC-1 (LIGHTSHIP)

HYDROSTATIC PROPERTIES

Trim: Aft 1.12/150.00, Heel: Port 0.04 deg., VCG = 6.63

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ 75.00a---Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

3.771 730.65 78.66a 1.94 16.91 75.44a 201.40 496.2 51.53

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline.

HYDROSTATIC PROPERTIES

Trim: Aft 1.12/150.00, Heel: Port 0.04 deg., VCG = 6.63

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ Origin----Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

3.211 730.65 78.66a 1.94 16.91 75.44a 201.40 496.2 51.53

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline.

HYDROSTATIC PROPERTIES

Trim: Aft 1.12/150.00, Heel: Port 0.04 deg., VCG = 6.63

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ 150.00a---Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

4.332 730.65 78.66a 1.94 16.91 75.44a 201.40 496.2 51.53

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline.

LC-1 (LIGHTSHIP)

------- GM required according to CFR 170.170 Weather Criterion --------

Freeboard: 5.301 Freeboard remaining after half of it immersed: 2.651

Heel at freeboard 2.651 is 5.84 degrees (waterline rotation) Lesser of this and 14 degrees: 5.84

Heeling moment (PAH): 275.51 Displacement (D): 730.68 P: 0.00511 A: 3163.477 H: 17.037

(PAH) / (D x tan(5.84)) = Required GM: 3.684

Current VCG: 6.630 Current GM: 51.559

GM Required = 3.684 Actual GM = 51.559

RIGHTING ARMS vs HEEL ANGLE LCG = 78.62a TCG = 0.04p VCG = 6.63

Origin Degrees of Displacement Righting Arms Flood Pt Depth---Trim----Heel----Weight(LT)---in Trim--in Heel---> Area--Height

3.211 0.43a 0.00 730.68 0.00 -0.040 0.00 8.82(12)

3.211 0.43a 0.04p 730.68 0.00 0.001 -0.00 7.60(8)

3.177 0.44a 5.00p 730.68 0.00 4.459 11.05 7.68(12)

3.013 0.48a 10.00p 730.64 0.00 8.723 44.10 6.49(12)

2.401 0.59a 15.00p 730.69 0.00 11.136 94.52 5.54(12)

1.503 0.75a 20.00p 730.68 0.00 12.036 153.08 4.66(12)

1.223 0.80a 21.48p 730.68 0.00 12.113 170.92 0.00(14)

0.944 0.86a 22.93p 730.68 0.00 12.135 188.58 4.13(12)

0.545 0.93a 25.00p 730.68 0.00 12.093 213.61 3.75(12)

-0.429 1.11a 30.00p 730.68 0.00 11.737 273.41 2.81(12) -1.410 1.29a 35.00p 730.67 0.00 11.136 330.69 1.84(12) -2.387 1.47a 40.00p 730.68 0.00 10.366 384.52 0.85(12) -3.218 1.61a 44.29p 730.68 0.00 9.602 427.40 0.00(12) -3.354 1.63a 45.00p 730.68 0.00 9.468 434.15 -0.14(12) -4.302 1.79a 50.00p 730.68 0.00 8.467 479.04 -1.14(12) -5.221 1.94a 55.00p 730.68 0.00 7.381 518.69 -2.13(12) -6.102 2.08a 60.00p 730.68 0.00 6.225 552.73 -3.11(12) Distances in FEET.------Specific Gravity = 1.000.-----------Area in Ft-Deg.

Note: No tank loads are present.

Critical Points----------------------LCP-----TCP-----VCP

(8) STAIRS (P) TIGHT 57.00a 22.15p 11.25

(12) ER SUPPLY (P) FLOOD 130.00a 12.70p 13.00

(14) AFT BALLAST VENT (P) TIGHT 141.50a 23.00p 12.50

LC-1 (LIGHTSHIP)

LIM--------------46 CFR 174.015(A)(1) CRITERION-------Min/Max--------Attained

(1) Area from Equilibrium to abs 40 deg or MaxRA > 15.00 Ft-deg 188.58 P

LC-1 (LIGHTSHIP)

0 5 10 15 20 25 30 35 40 45 50 55 60

Degrees of Heel --> Port

F T

Righting Arm

F T D e g

Righting Area

-10

-5

F T

0 5 10 15 20 25 30 35 40 45 50 55 60

Flood Pt. Height

Tight Pt. Height

LC-1 (LIGHTSHIP)

Condition Graphic - Draft: 3.21 @ 0.00 , 4.33 @ 150.00a Heel: zero

Profile View

Plan View

Body @ 75.00a

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LC-2 (LIGHTSHIP + 98% CONSUMABLES + DECK-CARGO + CRANE STOWED)

WEIGHT and DISPLACEMENT STATUS Baseline draft: 6.865 @ 0.00, 4.130 @ 150.00a Trim: Fwd 2.74/150.00, Heel: Stbd 0.39 deg.

Part------------------------------Weight(LT)----LCG-----TCG-----VCG LIGHTSHIP 730.68 78.62a 0.04p 6.63 CREW & EFFECTS 0.68 30.00a 0.00 6.00 STORES 3.00 75.00a 0.00 6.00 DECK CARGO 76.80 95.00a 0.00 14.00 CRANE LOWERWORKS 74.30 25.00a 0.00 13.00 CRANE UPPERWORKS 107.88 12.66a 0.00 18.38 CRANE BOOM 125 FT CONFIG 16.13 89.50a 0.00 27.25 SPUD&SPUD COLLAR FWD(PORT 13.82 45.00a 22.23p 30.00 SPUD&SPUD COLLAR FWD(STBD 13.82 45.00a 22.23s 30.00 SPUD&SPUD COLLAR AFT(STBD 13.82 129.00a 22.23s 30.00

Total Fixed---------> 1,050.92 69.16a 0.26s 10.06 Load-----SpGr-----Weight(LT)----LCG-----TCG-----VCG-------FSM

FUELOIL_S.S 0.980 0.840 10.05 53.99a 4.51s 6.06 8.4 FUELOIL_P.P 0.980 0.840 10.05 53.99a 4.49p 6.06 8.4 GRYWTRTK_S.S 0.100 1.000 1.02 35.93a 5.29s 2.41 5.8 FWTK_P.P 0.980 1.000 9.95 35.99a 5.25p 6.05 5.8 WASTEOILTK_S.S 0.100 0.930 0.08 105.22a 11.49s 2.10 0.6 FODAYTK_P.P 0.980 0.840 1.65 120.24a 5.75p 4.21 0.5 LUBEOILTK_S.S 0.980 0.890 0.78 120.24a 5.75s 2.98 0.5

Total Tanks---------> 33.58 53.03a 1.51p 5.77 29.8 Total Weight--------> 1,084.50 68.66a 0.21s 9.93

Displ(LT)----LCB-----TCB-----VCB------RefHt HULL 1.000 1,084.52 68.53a 0.26s 2.87 -6.86

Righting Arms: 0.00 0.00s Distances in FEET.-------------------------------------------Moments in Ft-LT.

FREEBOARD STATUS

Baseline draft: 6.865 @ 0.00, 4.130 @ 150.00a Trim: Fwd 2.74/150.00, Heel: Stbd 0.39 deg.

Least freeboard is 2.63 Ft located at 0.00

Least extra freeboard (to margin line) is 2.38 Ft located at 0.00

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LC-2 (LIGHTSHIP + 98% CONSUMABLES + DECK-CARGO + CRANE STOWED)

HYDROSTATIC PROPERTIES

Trim: Fwd 2.74/150.00, Heel: Stbd 0.39 deg., VCG = 9.93

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ 75.00a---Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

5.498 1,084.52 68.53a 2.87 17.07 74.75a 204.77 339.9 31.06

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline. True Free Surface included.

HYDROSTATIC PROPERTIES

Trim: Fwd 2.74/150.00, Heel: Stbd 0.39 deg., VCG = 9.93

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ Origin----Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

6.865 1,084.52 68.53a 2.87 17.07 74.75a 204.77 339.9 31.06

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline. True Free Surface included.

HYDROSTATIC PROPERTIES

Trim: Fwd 2.74/150.00, Heel: Stbd 0.39 deg., VCG = 9.93

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ 150.00a---Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

4.130 1,084.52 68.53a 2.87 17.07 74.75a 204.77 339.9 31.06

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Draft is from Baseline. True Free Surface included.

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LC-2 (LIGHTSHIP + 98% CONSUMABLES + DECK-CARGO + CRANE STOWED)

------- GM required according to CFR 170.170 Weather Criterion --------

Freeboard: 2.759 Freeboard remaining after half of it immersed: 1.380

Heel at freeboard 1.380 is 3.20 degrees (waterline rotation) Lesser of this and 14 degrees: 3.20

Heeling moment (PAH): 260.60 Displacement (D): 1084.50 P: 0.00511 A: 2905.329 H: 17.546

(PAH) / (D x tan(3.20)) = Required GM: 4.294

Current VCG: 9.928 Current GM: 31.060

GM Required = 4.294 Actual GM = 31.060

RIGHTING ARMS vs HEEL ANGLE Total CG: LCG = 68.66a TCG = 0.21s VCG = 9.93

Free Surface Adjustment: 0.03 Adjusted CG: LCG = 68.66a TCG = 0.21s VCG = 9.96

Origin Degrees of Displacement Righting Arms Flood Pt Depth---Trim----Heel----Weight(LT)---in Trim--in Heel---> Area--Height

6.863 1.04f 0.00 1,084.5 0.00 -0.209 0.00 8.35(13)

6.864 1.05f 0.39s 1,084.5 0.00 0.000 -0.04 5.27(9)

6.845 1.05f 5.00s 1,084.5 0.00 2.506 5.74 7.65(13)

6.830 1.09f 10.00s 1,084.5 0.00 5.191 25.00 6.93(13)

7.049 1.26f 13.32s 1,084.5 0.00 6.488 44.47 0.00(3)

7.232 1.39f 15.00s 1,084.4 0.00 6.860 55.71 6.27(13)

7.768 1.80f 19.52s 1,084.5 0.00 7.192 87.82 5.71(13)

7.824 1.85f 20.00s 1,084.5 0.00 7.189 91.30 5.65(13)

8.375 2.31f 25.00s 1,084.5 0.00 6.916 126.94 5.01(13)

8.879 2.76f 30.00s 1,084.5 0.00 6.366 160.26 4.35(13)

9.334 3.21f 35.00s 1,084.5 0.00 5.660 190.39 3.67(13)

9.735 3.65f 40.00s 1,084.5 0.00 4.854 216.72 2.98(13)

10.075 4.08f 45.00s 1,084.5 0.00 3.977 238.82 2.27(13)

10.350 4.48f 50.00s 1,084.5 0.00 3.050 256.41 1.55(13)

10.550 4.85f 55.00s 1,084.5 0.00 2.089 269.28 0.83(13)

10.668 5.18f 60.00s 1,084.5 0.00 1.105 277.27 0.10(13) Distances in FEET.------Specific Gravity = 1.000.-----------Area in Ft-Deg.

Note: The Weight and Center of Gravity used for the righting arms above include tank loads. However, the tank load centers were NOT ALLOWED TO SHIFT with heel and trim changes. Rather, a constant Free Surface Moment of 29.8 Ft-LT was applied to artificially modify the CG.

10/12/21 02:41:33 Technology Associates, Inc Page 4

LC-2 (LIGHTSHIP + 98% CONSUMABLES + DECK-CARGO + CRANE STOWED)

Critical Points----------------------LCP-----TCP-----VCP

(3) FWD BALLAST VENT (S) TIGHT 8.50a 23.00s 12.50

(9) STAIRS (S) TIGHT 57.00a 22.15s 11.25

(13) ER SUPPLY (S) FLOOD 121.50a 7.75s 13.00 LIM--------------46 CFR 174.015(A)(1) CRITERION-------Min/Max--------Attained

(1) Area from Equilibrium to abs 40 deg or MaxRA > 15.00 Ft-deg 87.86 P

10/12/21 02:41:33 Technology Associates, Inc Page 5

LC-2 (LIGHTSHIP + 98% CONSUMABLES + DECK-CARGO + CRANE STOWED)

0 5 10 15 20 25 30 35 40 45 50 55 60

Degrees of Heel --> Starboard

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

F T

Righting Arm

F T D e g

Righting Area

-20

-10

F T

0 5 10 15 20 25 30 35 40 45 50 55 60

10/12/21 02:41:33 Technology Associates, Inc Page 6

LC-2 (LIGHTSHIP + 98% CONSUMABLES + DECK-CARGO + CRANE STOWED)

Condition Graphic - Draft: 6.87 @ 0.00 , 4.13 @ 150.00a Heel: zero

26 189

Profile View

26 18

Plan View

Body @ 75.00a

Tanks

8 FUELOIL_S.S

9 FUELOIL_P.P

13 GRYWTRTK_S.S

18 FWTK_P.P

23 WASTEOILTK_S.S

26 FODAYTK_P.P

27 LUBEOILTK_S.S

10/12/21 02:41:35 Technology Associates, Inc Page 1

LC-3 (LIGHTSHIP + 50% CONSUMABLES + 50% DECK-CARGO + CRANE STOWED)

WEIGHT and DISPLACEMENT STATUS Baseline draft: 6.736 @ 0.00, 3.779 @ 150.00a Trim: Fwd 2.96/150.00, Heel: Stbd 0.46 deg.

Part------------------------------Weight(LT)----LCG-----TCG-----VCG LIGHTSHIP 730.68 78.62a 0.04p 6.63 CREW & EFFECTS 0.68 30.00a 0.00 6.00 STORES 3.00 75.00a 0.00 6.00 DECK CARGO 38.40 95.00a 0.00 14.00 CRANE LOWERWORKS 74.30 25.00a 0.00 13.00 CRANE UPPERWORKS 107.88 12.66a 0.00 18.38 CRANE BOOM 125 FT CONFIG 16.13 89.50a 0.00 27.25 SPUD&SPUD COLLAR FWD(PORT 13.82 45.00a 22.23p 30.00 SPUD&SPUD COLLAR FWD(STBD 13.82 45.00a 22.23s 30.00 SPUD&SPUD COLLAR AFT(STBD 13.82 129.00a 22.23s 30.00

Total Fixed---------> 1,012.52 68.18a 0.27s 9.91 Load-----SpGr-----Weight(LT)----LCG-----TCG-----VCG-------FSM

FUELOIL_S.S 0.500 0.840 5.13 53.99a 4.51s 4.07 8.4 FUELOIL_P.P 0.500 0.840 5.13 53.99a 4.49p 4.07 8.4 GRYWTRTK_S.S 0.500 1.000 5.08 35.99a 5.26s 4.07 5.8 FWTK_P.P 0.500 1.000 5.08 35.99a 5.24p 4.07 5.8 WASTEOILTK_S.S 0.500 0.930 0.41 105.32a 11.46s 2.50 0.6 FODAYTK_P.P 0.980 0.840 1.65 120.24a 5.75p 4.21 0.5 LUBEOILTK_S.S 0.500 0.890 0.40 120.22a 5.76s 2.50 0.5

Total Tanks---------> 22.88 52.86a 0.10p 4.02 29.8 Total Weight--------> 1,035.40 67.84a 0.27s 9.78

Displ(LT)----LCB-----TCB-----VCB------RefHt HULL 1.000 1,035.40 67.70a 0.32s 2.76 -6.73

Righting Arms: 0.00 0.00s Distances in FEET.-------------------------------------------Moments in Ft-LT.

FREEBOARD STATUS

Baseline draft: 6.736 @ 0.00, 3.779 @ 150.00a Trim: Fwd 2.96/150.00, Heel: Stbd 0.46 deg.

Least freeboard is 2.73 Ft located at 0.00

Least extra freeboard (to margin line) is 2.48 Ft located at 0.00

10/12/21 02:41:35 Technology Associates, Inc Page 2

LC-3 (LIGHTSHIP + 50% CONSUMABLES + 50% DECK-CARGO + CRANE STOWED)

HYDROSTATIC PROPERTIES

Trim: Fwd 2.96/150.00, Heel: Stbd 0.46 deg., VCG = 9.78

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ 75.00a---Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

5.257 1,035.40 67.70a 2.76 17.04 74.65a 204.14 354.9 32.85

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline. True Free Surface included.

HYDROSTATIC PROPERTIES

Trim: Fwd 2.96/150.00, Heel: Stbd 0.46 deg., VCG = 9.78

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ Origin----Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

6.736 1,035.40 67.70a 2.76 17.04 74.65a 204.14 354.9 32.85

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline. True Free Surface included.

HYDROSTATIC PROPERTIES

Trim: Fwd 2.96/150.00, Heel: Stbd 0.46 deg., VCG = 9.78

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ 150.00a---Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

3.779 1,035.40 67.70a 2.76 17.04 74.65a 204.14 354.9 32.85

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

10/12/21 02:41:35 Technology Associates, Inc Page 3

LC-3 (LIGHTSHIP + 50% CONSUMABLES + 50% DECK-CARGO + CRANE STOWED)

------- GM required according to CFR 170.170 Weather Criterion --------

Freeboard: 2.889 Freeboard remaining after half of it immersed: 1.445

Heel at freeboard 1.445 is 3.36 degrees (waterline rotation) Lesser of this and 14 degrees: 3.36

Heeling moment (PAH): 263.20 Displacement (D): 1035.40 P: 0.00511 A: 2941.235 H: 17.505

(PAH) / (D x tan(3.36)) = Required GM: 4.336

Current VCG: 9.782 Current GM: 32.868

GM Required = 4.336 Actual GM = 32.868

RIGHTING ARMS vs HEEL ANGLE Total CG: LCG = 67.84a TCG = 0.27s VCG = 9.78

Free Surface Adjustment: 0.03 Adjusted CG: LCG = 67.84a TCG = 0.27s VCG = 9.81

Origin Degrees of Displacement Righting Arms Flood Pt Depth---Trim----Heel----Weight(LT)---in Trim--in Heel---> Area--Height

6.733 1.13f 0.00 1,035.4 0.00 -0.266 0.00 8.66(13)

6.735 1.13f 0.46s 1,035.4 0.00 0.000 -0.06 5.46(9)

6.718 1.14f 5.00s 1,035.4 0.00 2.605 5.85 7.96(13)

6.698 1.17f 10.00s 1,035.4 0.00 5.454 26.00 7.24(13)

6.928 1.38f 13.64s 1,035.4 0.00 6.931 48.69 -0.00(3)

7.067 1.50f 15.00s 1,035.3 0.00 7.239 58.33 6.67(13)

7.578 1.96f 19.70s 1,035.4 0.00 7.611 93.70 6.21(13)

7.610 1.99f 20.00s 1,035.4 0.00 7.610 95.96 6.18(13)

8.115 2.49f 25.00s 1,035.4 0.00 7.351 133.63 5.66(13)

8.574 2.98f 30.00s 1,035.4 0.00 6.804 169.14 5.11(13)

8.987 3.46f 35.00s 1,035.4 0.00 6.092 201.44 4.55(13)

9.350 3.94f 40.00s 1,035.4 0.00 5.274 229.90 3.96(13)

9.657 4.39f 45.00s 1,035.4 0.00 4.381 254.07 3.35(13)

9.901 4.82f 50.00s 1,035.4 0.00 3.435 273.63 2.72(13)

10.075 5.22f 55.00s 1,035.4 0.00 2.452 288.37 2.08(13)

10.172 5.58f 60.00s 1,035.4 0.00 1.443 298.11 1.43(13) Distances in FEET.------Specific Gravity = 1.000.-----------Area in Ft-Deg.

Note: The Weight and Center of Gravity used for the righting arms above include tank loads. However, the tank load centers were NOT ALLOWED TO SHIFT with heel and trim changes. Rather, 10/12/21 02:41:35 Technology Associates, Inc Page 4

LC-3 (LIGHTSHIP + 50% CONSUMABLES + 50% DECK-CARGO + CRANE STOWED)

Critical Points----------------------LCP-----TCP-----VCP

(3) FWD BALLAST VENT (S) TIGHT 8.50a 23.00s 12.50

(9) STAIRS (S) TIGHT 57.00a 22.15s 11.25

(13) ER SUPPLY (S) FLOOD 121.50a 7.75s 13.00 LIM--------------46 CFR 174.015(A)(1) CRITERION-------Min/Max--------Attained

(1) Area from Equilibrium to abs 40 deg or MaxRA > 15.00 Ft-deg 93.76 P

10/12/21 02:41:35 Technology Associates, Inc Page 5

LC-3 (LIGHTSHIP + 50% CONSUMABLES + 50% DECK-CARGO + CRANE STOWED)

0 5 10 15 20 25 30 35 40 45 50 55 60

Degrees of Heel --> Starboard

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

F T

Righting Arm

F T D e g

Righting Area

-20

-10

F T

0 5 10 15 20 25 30 35 40 45 50 55 60

10/12/21 02:41:35 Technology Associates, Inc Page 6

LC-3 (LIGHTSHIP + 50% CONSUMABLES + 50% DECK-CARGO + CRANE STOWED)

Condition Graphic - Draft: 6.74 @ 0.00 , 3.78 @ 150.00a Heel: zero

26 189

Profile View

26 18

Plan View

Body @ 75.00a

Tanks

8 FUELOIL_S.S

9 FUELOIL_P.P

13 GRYWTRTK_S.S

18 FWTK_P.P

23 WASTEOILTK_S.S

10/12/21 02:41:35 Technology Associates, Inc Page 1

LC-4 (LIGHTSHIP+ 10% CONSUMABLES + 10% DECK-CARGO + CRANE STOWED)

WEIGHT and DISPLACEMENT STATUS Baseline draft: 6.648 @ 0.00, 3.492 @ 150.00a Trim: Fwd 3.16/150.00, Heel: Stbd 0.54 deg.

Part------------------------------Weight(LT)----LCG-----TCG-----VCG LIGHTSHIP 730.68 78.62a 0.04p 6.63 CREW & EFFECTS 0.68 30.00a 0.00 6.00 STORES 3.00 75.00a 0.00 6.00 DECK CARGO 7.68 95.00a 0.00 14.00 CRANE LOWERWORKS 74.30 25.00a 0.00 13.00 CRANE UPPERWORKS 107.88 12.66a 0.00 18.38 CRANE BOOM 125 FT CONFIG 16.13 89.50a 0.00 27.25 SPUD&SPUD COLLAR FWD(PORT 13.82 45.00a 22.23p 30.00 SPUD&SPUD COLLAR FWD(STBD 13.82 45.00a 22.23s 30.00 SPUD&SPUD COLLAR AFT(STBD 13.82 129.00a 22.23s 30.00

Total Fixed---------> 981.80 67.34a 0.28s 9.78 Load-----SpGr-----Weight(LT)----LCG-----TCG-----VCG-------FSM

FUELOIL_S.S 0.100 0.840 1.03 53.92a 4.58s 2.41 8.4 FUELOIL_P.P 0.100 0.840 1.03 53.92a 4.42p 2.41 8.4 GRYWTRTK_S.S 0.980 1.000 9.96 35.99a 5.26s 6.05 5.8 FWTK_P.P 0.100 1.000 1.02 35.92a 5.20p 2.41 5.8 WASTEOILTK_S.S 0.980 0.930 0.81 105.33a 11.45s 2.98 0.5 FODAYTK_P.P 0.980 0.840 1.65 120.24a 5.75p 4.21 0.5 LUBEOILTK_S.S 0.100 0.890 0.08 120.11a 5.81s 2.10 0.5

Total Tanks---------> 15.57 51.34a 3.05s 4.96 29.8 Total Weight--------> 997.37 67.09a 0.33s 9.71

Displ(LT)----LCB-----TCB-----VCB------RefHt HULL 1.000 997.23 66.94a 0.39s 2.68 -6.65

Righting Arms: 0.00 0.00s Distances in FEET.-------------------------------------------Moments in Ft-LT.

FREEBOARD STATUS

Baseline draft: 6.648 @ 0.00, 3.492 @ 150.00a Trim: Fwd 3.16/150.00, Heel: Stbd 0.54 deg.

Least freeboard is 2.79 Ft located at 0.00

Least extra freeboard (to margin line) is 2.54 Ft located at 0.00

10/12/21 02:41:35 Technology Associates, Inc Page 2

LC-4 (LIGHTSHIP+ 10% CONSUMABLES + 10% DECK-CARGO + CRANE STOWED)

HYDROSTATIC PROPERTIES

Trim: Fwd 3.16/150.00, Heel: Stbd 0.54 deg., VCG = 9.71

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ 75.00a---Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

5.070 997.23 66.94a 2.68 17.00 74.45a 202.63 365.7 34.31

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline. True Free Surface included.

HYDROSTATIC PROPERTIES

Trim: Fwd 3.16/150.00, Heel: Stbd 0.54 deg., VCG = 9.71

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ Origin----Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

6.648 997.23 66.94a 2.68 17.00 74.45a 202.63 365.7 34.31

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

Trim is per 150.00Ft

Draft is from Baseline. True Free Surface included.

HYDROSTATIC PROPERTIES

Trim: Fwd 3.16/150.00, Heel: Stbd 0.54 deg., VCG = 9.71

Draft@ Displacement Buoyancy-Ctr. Weight/ Moment/ 150.00a---Weight(LT)----LCB-----VCB-----Inch-----LCF---In trim----GML-----GMT

3.492 997.23 66.94a 2.68 17.00 74.45a 202.63 365.7 34.31

Distances in FEET.-------Specific Gravity = 1.000.-----------Moment in Ft-LT.

10/12/21 02:41:35 Technology Associates, Inc Page 3

LC-4 (LIGHTSHIP+ 10% CONSUMABLES + 10% DECK-CARGO + CRANE STOWED)

------- GM required according to CFR 170.170 Weather Criterion --------

Freeboard: 2.976 Freeboard remaining after half of it immersed: 1.488

Heel at freeboard 1.488 is 3.46 degrees (waterline rotation) Lesser of this and 14 degrees: 3.46

Heeling moment (PAH): 265.29 Displacement (D): 997.37 P: 0.00511 A: 2969.075 H: 17.478

(PAH) / (D x tan(3.46)) = Required GM: 4.401

Current VCG: 9.709 Current GM: 34.299

GM Required = 4.401 Actual GM = 34.299

RIGHTING ARMS vs HEEL ANGLE Total CG: LCG = 67.09a TCG = 0.33s VCG = 9.71

Free Surface Adjustment: 0.03 Adjusted CG: LCG = 67.09a TCG = 0.33s VCG = 9.74

Origin Degrees of Displacement Righting Arms Flood Pt Depth---Trim----Heel----Weight(LT)---in Trim--in Heel---> Area--Height

6.646 1.20f 0.00 997.29 0.00 -0.326 0.00 8.91(13)

6.647 1.21f 0.54s 997.37 0.00 0.000 -0.09 5.59(9)

6.633 1.21f 5.00s 997.37 0.00 2.671 5.86 8.21(13)

6.614 1.26f 10.00s 997.35 0.00 5.643 26.65 7.50(13)

6.849 1.50f 13.86s 997.37 0.00 7.229 51.68 -0.00(3)

6.960 1.61f 15.00s 997.30 0.00 7.491 60.09 7.00(13)

7.452 2.11f 19.85s 997.37 0.00 7.890 97.90 6.61(13)

7.466 2.12f 20.00s 997.37 0.00 7.890 99.08 6.60(13)

7.939 2.65f 25.00s 997.40 0.00 7.642 138.18 6.17(13)

8.369 3.17f 30.00s 997.37 0.00 7.094 175.14 5.72(13)

8.755 3.69f 35.00s 997.39 0.00 6.376 208.89 5.25(13)

9.093 4.19f 40.00s 997.36 0.00 5.548 238.74 4.74(13)

9.378 4.67f 45.00s 997.37 0.00 4.642 264.25 4.21(13)

9.603 5.13f 50.00s 997.37 0.00 3.681 285.08 3.66(13)

9.760 5.55f 55.00s 997.38 0.00 2.680 301.00 3.09(13)

9.842 5.93f 60.00s 997.38 0.00 1.652 311.84 2.49(13)

Distances in FEET.------Specific Gravity = 1.000.-----------Area in Ft-Deg.

Note: The Weight and Center of Gravity used for the righting arms above include tank loads. However, the tank load centers were NOT ALLOWED TO SHIFT with heel and trim changes. Rather, 10/12/21 02:41:35 Technology Associates, Inc Page 4

LC-4 (LIGHTSHIP+ 10% CONSUMABLES + 10% DECK-CARGO + CRANE STOWED)

Critical Points----------------------LCP-----TCP-----VCP

(3) FWD BALLAST VENT (S) TIGHT 8.50a 23.00s 12.50

(9) STAIRS (S) TIGHT 57.00a 22.15s 11.25

(13) ER SUPPLY (S) FLOOD 121.50a 7.75s 13.00 LIM--------------46 CFR 174.015(A)(1) CRITERION-------Min/Max--------Attained

(1) Area from Equilibrium to abs 40 deg or MaxRA > 15.00 Ft-deg 97.99 P

10/12/21 02:41:35 Technology Associates, Inc Page 5

LC-4 (LIGHTSHIP+ 10% CONSUMABLES + 10% DECK-CARGO + CRANE STOWED)

0 5 10 15 20 25 30 35 40 45 50 55 60

Degrees of Heel --> Starboard

F T

Righting Arm

F T D e g

Righting Area

-20

-10

F T

0 5 10 15 20 25 30 35 40 45 50 55 60

10/12/21 02:41:35 Technology Associates, Inc Page 6

LC-4 (LIGHTSHIP+ 10% CONSUMABLES + 10% DECK-CARGO + CRANE STOWED)

Condition Graphic - Draft: 6.65 @ 0.00 , 3.49 @ 150.00a Heel: zero

26 189

Profile View

26 18

Plan View

Body @ 75.00a

Tanks

8 FUELOIL_S.S

9 FUELOIL_P.P

13 GRYWTRTK_S.S

18 FWTK_P.P

23 WASTEOILTK_S.S