87 Stability and Loading Booklet 87-WPB_79_50.pdf

STABILITY AND LOADING

DATA BOOKLET

FOR

87 WPB

Hulls 87301 - 87374

COMMANDING OFFICER (SFLC-ESD-NAV ARCH)

U.S. COAST GUARD

SURFACE FORCES LOGISTICS CENTER

2401 HAWKINS PT. RD MS 25

BALTIMORE, MD 21226-5000

TEL: (410) 762-6136

Prepared By: Hirsimaki/Roberts

Checked By: Christopher D. Barry, P.E.

Approved By: Frank DeBord, P.E.

Chief, Naval Architecture Section (SFLC-ESD-NAV ARCH)

DATE: 7 DEC 2018

DWG. NO.: 87-WPB-79-50 REV. C

REVISIONS

REVISION Page

No.

DESCRIPTION APPVD. BY DATE

A

All

This document supersedes the “Trim and Stability

Manual” dated 9/15/97, produced by Bollinger

Shipyards, Dwg. No. 87-WPB-79-5.

R. Sheinberg

/ELC-023/024

Dec 08

B

C

Cover, All

5-8

10-11

17-29

31,34-37

12, 34, 13,14

13,16,38

34, 35, 36, 37

34, 36

5-8

9, 12

Drawing number 87-WPB-79-50 assigned. Changed

“Engineering Logistics Center” to “Surface Forces

Logistics Center”. Incorporated BLACKFIN’s inclining results. Reformatted Sections.

Added navigational draft. Revised 25% sewage tank capacity to 90 gal.

Updated cutter homeport info.

Revised bulkhead definition.

Revised heel, list, one compartment, and roll definitions. Add TCG definition.

Revised VCB and VCG definitions.

Revised the General Remarks.

Revised trim limits to be mandatory.

Revised guidance for migrant and passenger loadings.

Revised the limiting KG and topside icing guidance.

Replaced Tank Tables with 1” soundings.

Corrected frame table and added frame spacing note.

Revised the Trim Table to use 1 LT of added weight.

Revised the Change in GM data to Change in KG.

Revised the Damage Survival guidance.

Revised Light Ship data to use as the class average the average of the Light Ships obtained from the two most recent stability tests, of BLACKFIN (on

1/13/08) and GANNET (on 3/31/18).

Added trim guidance paragraph B.

Revised the beam winds to use 80-knot winds for intact stability and 30 knots for damage stability per

DDS 079-1 (2008).

Updated the limiting trim values.

Revised Limiting KGv Diagram to be based on a trim range of 1 foot by the bow to 1 foot by the stern, and added damage stability Limiting KGv curve.

Added one compartment flooding discussion.

Updated Change in KG values.

Revised the variable loads to use the data from

GANNET’s 2018 Stability Test Report.

Revised the Note so it provides the dimension below baseline the aft marks are referenced to.

Updated the homeports of thirty-eight cutters.

Improved the description of draft at Aft Marks.

Added Note to definition of Trim.

F. DeBord

/SFLC-ESD-

NASEC

T. McAllister

/s/

SFLC-ESD-

NAME-NAV

ARCH

25 Oct

07 Dec

87 WPB – Coastal Patrol Boat Page 3 of 38

TABLE OF CONTENTS

Principal Characteristics

87 WPB Class Names ..................................................................................................... 5-8

Definition of Terms ........................................................................................................ 9-11

General Remarks

Limiting KGv Diagram

Liquid Loading Instructions

Passengers

Migrants

Effects of Icing on KG

Damage Survival

Tank Capacity Tables ................................................................................................ 17-29

Frame Table

Change in KG caused by 1-LTon Added Weight

Change in Trim caused by 1-LTon Added Weight

Nomograph ................................................................................................................ 32-33

Full Load Condition .................................................................................................... 34-35

Minimum Operating Condition ................................................................................ 36-37

Procedures After Damage

87 WPB – Coastal Patrol Boat Page 4 of 38

PRINCIPAL CHARACTERISTICS

Length Overall ....................................................................... 86’ – 11-1/4"

Length Between Perpendiculars ........................................ 79’ – 8"

Beam, Extreme ...................................................................... 19’ – 5-1/2”

Beam, Molded ...................................................................... 19’ - 5”

Depth, Molded ...................................................................... 10’- 11”

Keel Drag (79’-8” LBP length) .............................................. 0’- 0”

Draft, to bottom of keel, at Full Load ................................ 5’ - 3”

Draft, Navigational to skeg, at Full Load .......................... 5’ - 10”

Hull & Deck ............................................................................ Steel

Superstructure ....................................................................... Aluminum

Displacement, at Full Load ................................................. 91.9 LT

Displacement, at Min Ops .................................................. 86.8 LT

Light Ship ……………… 80.2 LT

Complement

Endurance ............................................................................. 5 days

Potable Water, 100% Full ...................................................... 400 gals

Fuel Oil, 95% Full ..................................................................... 2,666 gals

Lube Oil, 95% Full ................................................................... 34 gals

Sewage, 25% Full ................................................................... 90 gals

Maximum Deadweight ........................................................ 11.7 LT

Main Engines ......................................................................... Two (2) MTU 8V396TE94, 1,429 BHP @ 2,039 RPM

Shaft Horsepower ................................................................. 1,200 SHP ea.

Propellers ................................................................................ Two (2) Five (5) Bladed

Fixed Pitch 40.9”D x 50.2”P

Speed at Max Continuous @100% MCR ........................... 25.6 knots

Speed at Max Continuous @90% MCR ............................. 24.1 knots

Speed – Patrolling ................................................................ 15.0 knots

Max. Range .......................................................................... 612 nm @ 10 knots

87 WPB – Coastal Patrol Boat Page 5 of 38

87 WPB CLASS NAMES

Cutter Name Hull # Homeport District OPFAC Commission

BARRACUDA 87301 Eureka, CA 11 13301 1998

HAMMERHEAD 87302 Woods Hole, MA 1 13302 1998

MAKO 87303 Cape May, NJ 5 13303 1998

MARLIN 87304 Panama City, FL 7 13304 1998

STINGRAY 87305 Mobile, AL 8 13305 1999

DORADO 87306 Crescent City, CA 11 13306 1999

OSPREY 87307 Port Townsend, WA 13 13307 1999

CHINOOK 87308 Tybee Island, GA 7 13308 1999

ALBACORE 87309 New London, CT 1 13309 1999

TARPON 87310 St. Petersburg, FL 7 13310 1999

COBIA 87311 Mobile, AL 8 13311 1999

HAWKSBILL 87312 Monterey, CA 11 13312 1999

CORMORANT 87313 Charleston, SC 7 13313 1999

FINBACK 87314 Fort Pierce, FL 7 13314 1999

AMBERJACK 87315 Jonesboro, ME 1 13315 1999

KITTIWAKE 87316 Honolulu, HI 14 13316 2000

BLACKFIN 87317 Santa Barbara, CA 11 13317 2000

BLUEFIN 87318 Fort Pierce, FL 7 13318 2000

YELLOWFIN 87319 San Juan, PR 7 13319 2000

MANTA 87320 Freeport, TX 8 13320 2000

COHO 87321 Corpus Christi, FL 8 13321 2000

87 WPB – Coastal Patrol Boat Page 6 of 38

Cutter Name Hull # Homeport District OPFAC Commission

KINGFISHER 87322 Panama City, FL 8 13322 2000

SEAHAWK 87323 St. Petersburg, FL 7 13323 2000

STEELHEAD 87324 Newport, RI 1 13324 2000

BELUGA 87325 Galveston, TX 8 13325 2000

BLACKTIP 87326 Oxnard, CA 11 13326 2000

PELICAN 87327 St. Petersburg, FL 7 13327 2000

RIDLEY 87328 Atlantic City, NJ 7 13328 2000

COCHITO 87329 Miami Beach, FL 7 13329 2001

MANOWAR 87330 Galveston, TX 8 13330 2001

MORAY 87331 Cape Canaveral, FL 7 13331 2001

RAZORBILL 87332 Gulfport, MS 8 13332 2001

ADELIE 87333 Port Angeles, WA 13 13333 2001

GANNET 87334 Dania, FL 7 13334 2001

NARWHAL 87335

Coronado Del Mar

CA

11 13335 2001

STURGEON 87336 Port Arsansa, TX 8 13336 2001

SOCKEYE 87337 Bodega Bay, CA 11 13337 2001

IBIS 87338 Cape May, NJ 5 13338 2001

POMPANO 87339 Sabine, TX 8 13339 2001

HALIBUT 87340 Marine Del Rey, CA 11 13340 2001

BONITO 87341 Montauck, NY 1 13341 2002

SHRIKE 87342 Bayonne, NJ 1 13342 2002

87 WPB – Coastal Patrol Boat Page 7 of 38

TERN 87343 San Francisco, CA 11 13343 2002

HERON 87344 Virginia Beach, VA 5 13344 2002

WAHOO 87345 Port Angeles, WA 13 13345 2002

FLYINGFISH 87346 Virginia Beach, VA 5 13346 2002

HADDOCK 87347 San Diego, CA 11 13347 2002

BRANT 87348 Gulfport, MS 8 13348 2002

SHEARWATER 87349 Cape May, NJ 5 13349 2002

PETREL 87350 San Diego, CA 11 13350 2003

SEA LION 87352 Bellingham, WA 13 13352 2003

SKIPJACK 87353 Abbeville, LA 8 13353 2003

DOLPHIN 87354 Portsmouth, VA 5 13354 2004

HAWK 87355 Virginia Beach, VA 5 13355 2004

SAILFISH 87356 Grand Isle, LA 8 13356 2004

SAWFISH 87357 Atlantic Beach, FL 7 13357 2004

SWORDFISH 87358 Port Angeles, WA 13 13358 2005

TIGER SHARK 87359 Freeport, TX 8 13359 2005

BLUE SHARK 87360 Everett, WA 13 13360 2005

SEA HORSE 87361 Portsmouth, VA 5 13361 2005

SEA OTTER 87362 San Diego, CA 11 13362 2005

MANATEE 87363 Corpus Christi, TX 8 13363 2005

AHI 87364 Honolulu, HI 14 13364 2005

PIKE 87365 San Franscisco, CA 11 13365 2005

87 WPB – Coastal Patrol Boat Page 8 of 38

TERRAPIN 87366 Bellingham, WA 13 13366 2005

SEA DRAGON 87367 Kings Bay, GA 7 13367 2008

SEA DEVIL 87368 Bangor, WA 13 13368 2008

CROCODILE 87369 Cape May, NJ 5 13369 2008

DIAMONDBACK 87370 Fort Meyers, FL 7 13370 2009

REEF SHARK 87371 Boston, MA 1 13371 2009

ALLIGATOR 87372

South Padre Island, TX

8 13372 2009

SEA DOG 87373 Kings Bay, GA 7 13373 2009

SEA FOX 87374 Bangor, WA 13 13374 2009

87 WPB – Coastal Patrol Boat Page 9 of 38

DEFINITION OF TERMS

ABV B.L.: Above Base Line, refers to vertical distance above the base line. (KG, VCB, KML, KMT and VCG are measured from the base line.)

Base Line: A horizontal reference line. The Base Line is located as shown below in the definition of “Drafts at Forward and Aft Marks”.

Bulkheads: The bulkheads divide the cutter into watertight compartments. The main transverse watertight bulkheads are at frames 2, 9, 14 and 22.

Compartment: A space or a group of spaces between watertight bulkheads. This cutter has five compartments: the forepeak, the berthing space, the mess/galley, the machinery space and the lazarette.

Draft: The vertical distance from the waterline to the Base Line. For the Aft Marks the draft is measured to the bottom of the skeg.

Drafts at

Forward and

Aft Marks:

The depth of the cutter below the waterline to the Base Line

(extended) at the Forward Marks, and to the bottom of the skeg

(extended) at the Aft Marks, which is 7.5 inches (0.625 ft) below the

Base Line. The forward and aft marks are as shown below:

Draft at LCF: Vertical distance between the waterline and the Base Line at the LCF.

Displacement: The weight of the cutter afloat. In accordance with Archimedes’s principle, the weight of the cutter is equal to the weight of the water the cutter displaces at a given draft.

FP and AP: Forward and Aft Perpendiculars. Imaginary vertical lines at the bow (FP) and the stern (AP). On this cutter, the AP is at the Transom at Frame 25.70 and the FP is located 24.28 meters forward at Frame 1.42 (about 16.5 inches aft of Frame 1).

Freeboard: The vertical distance from the intersection of the deck edge and side shell to the water line.

87 WPB – Coastal Patrol Boat Page 10 of 38

Free Surface: The effect of liquids which are able to shift in a tank because it is not full (so that there is a surface of liquid that is free to shift). The ability of the liquid to slosh to the low side of the tank increases the heel produced by the liquid’s weight. This effect reduces the cutter's stability. Free surface is tabulated for each tank in units of feet-LT then all tank moments are added together and divided by the total weight of the cutter, resulting in units of feet. This is done for convenience because it can then be just added to the KG of the cutter to get the effective stability of the cutter including this free surface effect.

GM: Distance between the center of gravity and the metacenter. This is referred to as metacentric height and is equal to the difference between

KM and KG.

Heel: Rotation of the vessel about its longitudinal axis.

KG: Distance from the base line to the center of gravity of the cutter.

KGv: Distance from the base line to the virtual center of gravity of the cutter. It is equal to KG plus the virtual increase in KG resulting from the effects of the free surface of liquids aboard.

KM: Distance from base line to the metacenter.

LCB: Longitudinal Center of Buoyancy. The longitudinal point at which buoyancy may be considered to be concentrated. LCB, LCF, and LCG are measured from midships, Frame 13.56.

LCF: Longitudinal Center of Flotation. The longitudinal point which is the geometric center of the waterplane; and the point about which the vessel trims.

LCG: Longitudinal Center of Gravity. The longitudinal point at which weight may be considered to be concentrated.

List: A semi-permanent transverse inclination of the vessel (about its longitudinal axis).

Margin Line: A line (set by regulations) defining the highest permissible damaged waterline along the side of the vessel in the final condition of sinkage, trim, and heel. For the 87 WPB, it is a line proceeding from three inches below the aft deck at the transom to a point three inches below the foredeck at the bow.

Metacenter: The point of intersection of the cutter’s vertical axis when heeled (or trimmed) to small angles with a vertical line through the center of buoyancy. This is the point that buoyancy pivots about when the cutter is heeled (or trimmed) slightly. There are two metacenters: transverse, or KMT, acting in heel, and longitudinal, or KML, acting in trim. Transverse metacentric height is a primary measure of a vessel’s stability.

Midships Midway between the Forward and Aft Perpendiculars. On this cutter, midships is at Frame 13.56 (about 22 inches aft of Frame 13).

87 WPB – Coastal Patrol Boat Page 11 of 38

MT1”: Moment to alter trim one inch. The product of weight times the distance it is shifted through that changes the trim one inch.

One

Compartment

Flooding:

A cutter that can survive the flooding of any main watertight compartment. “Survive” means staying afloat without submerging the margin line and retaining adequate stability to withstand moderate winds and seas.

Roll: Rotation about the cutter’s longitudinal axis usually in both directions, as when the cutter is under the influence of waves or wind gusts.

Roll Period: The time for the cutter to make one complete roll. The cutter will generally roll with the waves, and in this case, it will have the same period as the waves. The roll period due to wave action is not indicative of stability. Only the “natural” roll period, either in absence of wave action or in a different period than wave action is indicative of stability condition. Roll period can be measured by sighting a fixed point on the cutter against the horizon, noting the time between the passage of the fixed point upwards through the horizon and when it next passes through the fixed point upwards through the horizon, in one complete cycle. Measuring this time over three cycles, then dividing by three is done to improve accuracy.

Stability: The tendency of the cutter to return to an upright position when disturbed by overturning effects. Transverse stability is of the primary concern, but longitudinal stability should also be considered.

TCG: Transverse Center of Gravity. The transverse distance from centerline at which an object’s weight is considered to act. Generally given positive to starboard, or by (S) and (P).

TP1”: Tons per inch immersion, the change in displacement per each inch of change of draft.

Trim: The difference between the draft at the AP and the FP. The trim can be computed from the draft readings as follows:

Trim = 1.03 * [Aft reading (ft) – Fwd reading (ft) – 0.625 (ft)]

Note: The deduction of 0.625 feet in the trim calculation above is because the aft draft marks are measured to the bottom of the skeg

(extended), which is 0.625 feet below the Base Line.

VCB: Vertical Center of Buoyancy. The vertical distance from base line to the point at which the forces of buoyancy on a cutter may be considered to act or be concentrated. Also given as KB.

VCG: Vertical Center of Gravity. The vertical distance from base line to the point at which an object's weight can be considered to act or be concentrated.

The VCG of the whole cutter is the same as the KG.

87 WPB – Coastal Patrol Boat Page 12 of 38

GENERAL REMARKS

The purpose of this booklet is to assist operating personnel in keeping the cutter within the safe region of stability. The quantitative data in this booklet are based on the class average of the light ship conditions obtained by inclining experiments of USCGC BLACKFIN (on

1/13/08) and USCGC GANNET (on 3/31/18).

For the 87 WPB Marine Protector Class in general, the normal full load and minimum operating conditions herein have margin on allowable KG/KGv. For normal conditions of loading, including icing, passenger loading and migrant loading as detailed in this booklet, the allowable KGv will not be exceeded. Stability characteristics and reserve buoyancy of this cutter will be satisfactory provided the following guidance is followed:

A. The cutter’s virtual KGv (which is KG corrected for free surface effects) is maintained below the maximum allowable KGv presented on the “Limiting KGv Diagram” on page 13.

B. Trim does not exceed 1 foot by the bow or 1 foot by the stern.

C. The Liquid Loading Instructions on page 14 are followed.

D. All boundaries designated as watertight are maintained watertight.

E. The “Procedures After Damage” on page 38 are followed.

“Principal Characteristics” are generally similar for all 87 WPB Marine Protector Class vessels.

Criteria used for Intact Stability is U.S. Navy Design Data Sheet DDS 079-1 (2008) for eighty

(80) knot nominal winds. Criteria used for the Damage Stability is DDS 079-1 (2008) for flooding of any one main compartment for thirty (30) knot nominal beam winds.

The loading of passengers and migrants and operation involving high speeds, towing, and offshore patrolling in adverse conditions are primary operational requirements of this class.

Added weight often adversely affects stability and reduces the vessels’ ability to achieve maximum speed. Therefore, unnecessary items should be removed whenever possible.

Guidance about the loading of passengers and migrants and the effects of topside icing is provided on pages 15 and 16.

The term TON as used in this book refers to the standard Long Ton (LT) of 2240 pounds.

Weights not given in TONs are in pounds. All gallons used in this booklet are U.S. gallons.

The reference line for the forward draft marks is the baseline, and for the aft draft marks is the bottom of the skeg (extended) which is 7.5 inches (0.625 feet) below the baseline.

Questions about this booklet should be addressed to the Naval Architecture Section (SFLC-

ESD-NAV ARCH), Surface Forces Logistics Center, U.S. Coast Guard, Phone (410) 762-6136.

87 WPB – Coastal Patrol Boat Page 13 of 38

LIMITING KGv DIAGRAM

Maintaining acceptable intact and damage stability requires that the cutter’s virtual KG

(i.e., “KGv” - which is KG corrected for free surface effects) be kept below the limiting KGv curve shown.

The curve shown above is for intact stability under 80 knot beam winds. The limiting curve for damage stability is for flooding of any main compartment.

The KGv limits shown above are for a range of trims between 1 foot by the bow and 1 foot by the stern. Operating trim shall be kept within this trim range. As noted previously, the cutter will be within these trim and KGv limits for all normal loading conditions. If the cutter trims excessively without unusually large special deck loads, there is a possibility of unknown flooding. This should be investigated.

At the time of inclines, the roll period was observed to be approximately four seconds. If the observed roll period is greatly different than this, especially if it is slower, this may be an indicator of flooding or other stability related problems.

7.2

7.4

7.6

7.8

8.2

8.4

8.6

8.8

84 86 88 90 92 94 96 98 100

K G v

FE

ET

DISPLACEMENT - LTONS

LIMITING KGv

INTACT - 80 KN WINDS

FULL LOAD

MIN OP

DAMAGE

87 WPB – Coastal Patrol Boat Page 14 of 38

LIQUID LOADING INSTRUCTIONS

Proper loading of the vessel is important in achieving operational needs while maintaining a high margin of stability. The following instructions should be followed and provides the most favorable fuel oil transfer sequence:

a. Fill the fuel oil tanks and Lube Oil tank to 95%, and the potable water to 100%

b. The single pair of fuel oil tanks does not require any burn sequencing for stability considerations.

The above tank consumption will generally produce favorable trim and stability conditions throughout the operating range of the vessel.

Please see tank capacity tables herein for detailed tank sounding and loading data.

87 WPB – Coastal Patrol Boat Page 15 of 38

PASSENGERS

The maximum number of passengers that can be safely carried onboard is forty (40) with two (2) ship’s personnel assumed on the bridge. It is important to consider dynamic effects (weather, wind, and sea swell) that the cutter may experience. The final decision as to the number of passengers allowed is at the discretion of the

Commanding Officer.

MIGRANTS

Loading migrants can significantly affect the vessel’s stability. Before migrants are brought aboard, the CD/AMIO Manual, COMDTINST M16247.4(Series) should be reviewed. Note: The numbers of allowed migrants cited herein are current and should be used in lieu of the numbers cited in the Manual, if different.

The number of migrants that can be safely carried differs from the maximum allowed number of passengers due to different criteria and assumed loadings. When migrants are aboard it is assumed that the fuel loading is not reduced below 70%, winds do not exceed 60 knots, the cutter does not execute high speed turns, but crowding of personnel including migrants to one side might occur. Furthermore, when migrants are aboard for a short term period of not more than 24 hours damage stability requirements do not apply. Deck area requirements are 10 square feet per migrant when they are aboard for more than 24 hours (which is referred to as “Saturation Loading”) and 5 square feet per migrant when they are aboard for not more than 24 hours (called

“Super Saturation Loading”).

Fifty (50) migrants can be safely carried for Saturation Loading (greater than 24 hours), and are to be located with thirty-two (32) migrants on the aft deck and eighteen (18) on the Foredeck.

One hundred (100) migrants may be carried for Super Saturation Loadings (less than 24 hours) and are to be located with sixty-four (64) migrants on the aft deck and thirty-six

(36) on the Foredeck.

It is important to consider dynamic effects (weather, wind, and sea swell) that the cutter may experience. The final decision as to the number of migrants aboard is at the discretion of the Commanding Officer.

87 WPB – Coastal Patrol Boat Page 16 of 38

EFFECTS OF ICING ON KG

The cutter’s ability to withstand beam winds is reduced when there is topside icing.

Topside icing of the vessel can reduce stability to a degree that prohibits safe operations. For example, a one inch thick buildup of ice on the main deck, deck house sides and top, and on the mast will cause a 0.4 foot rise in KG, and make the vessel less stable. Therefore, it is imperative to make every effort to prohibit ice formation wherever and whenever possible. Ice buildup in the operating range of displacements of more than four (4”) inches will result in unacceptable stability when there is a beam wind of forty-five (45) knots or greater. Non-uniform icing can be approximated by estimating the thickness of the existing ice if it were uniformly distributed over the main deck, deck house sides and top, and the mast.

DAMAGE SURVIVAL

Following damage resulting in free flooding of any main compartment, the cutter is able to withstand 30 knot beam winds combined with effects of sea conditions associated with such winds provided the following are satisfied:

A. The vessel is in a load condition at or between Full Load and Minimum Operating.

B. The liquid loading instructions have been followed.

C. All boundaries designated as watertight are maintained watertight.

During normal operations, the KGv will be below the allowable value and the trim will be within the acceptable range. However, if additional loads are brought aboard, the cutter's

KGv and trim should be checked to assure that the KGv limits are not exceeded and that the trim does not exceed 1 foot by the bow or stern.

The most critical case of one compartment flooding is between Frames 14 – 22. All other cases of one compartment flooding have KGv limits that are considerably higher.

If the cutter is loaded to a displacement exceeding Full Load Condition and/or the trim of the cutter before damage exceeds 1 foot, the margin line (see definition on page 10) may become submerged after damage. Submergence of the margin line may not cause loss of the cutter if the KGv before damage was below the allowable value, watertight closures have been maintained closed, and if there is no down-flooding over the deck into other main subdivision compartments.

87 WPB – Coastal Patrol Boat Page 17 of 38

TANK CAPACITY TABLES

GRAY WATER (S)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 1.2 16.94F 1.71 2.32S 0.00

1'' 2.0 16.94F 1.77 2.37S 0.00

2'' 2.9 16.94F 1.82 2.41S 0.00

3'' 4.1 16.94F 1.87 2.46S 0.00

4'' 5.4 16.94F 1.93 2.50S 0.00

5'' 6.9 16.94F 1.98 2.55S 0.00

6'' 8.6 16.94F 2.04 2.59S 0.00

7'' 10.5 16.94F 2.09 2.64S 0.03

8'' 12.6 16.94F 2.15 2.69S 0.03

9'' 15.0 16.96F 2.21 2.73S 0.03

10'' 17.9 17.04F 2.27 2.76S 0.06

11'' 21.3 17.12F 2.34 2.79S 0.06

1'- 0'' 25.2 17.21F 2.40 2.82S 0.09

1'- 1'' 29.5 17.29F 2.47 2.85S 0.11

1'- 2'' 34.2 17.36F 2.53 2.88S 0.11

1'- 3'' 39.3 17.43F 2.59 2.91S 0.14

1'- 4'' 44.9 17.49F 2.66 2.94S 0.14

1'- 5'' 50.6 17.55F 2.71 2.97S 0.14

1'- 6'' 54.7 17.58F 2.76 2.99S 0.00

100% 54.7

Sounding tables indicate the port and starboard Fuel Oil, Potable Water and the Oily

Water/Dirty Oil Tanks are symmetrical, respectively. Tanks’ arrangement is given as port

(P) or starboard (S). Where there is no indication, the tank is on centerline. Free Surface

Moment (FSM) given in ft-LT.

87 WPB – Coastal Patrol Boat Page 18 of 38

FUEL OIL (P)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 24.9 8.08F 0.34 0.33P 0.02

1'' 31.6 7.91F 0.38 0.37P 0.05

2'' 39.2 7.76F 0.42 0.41P 0.07

3'' 47.6 7.64F 0.45 0.45P 0.09

4'' 56.8 7.54F 0.49 0.49P 0.12

5'' 66.9 7.45F 0.53 0.53P 0.14

6'' 77.8 7.37F 0.57 0.57P 0.19

7'' 89.6 7.30F 0.61 0.61P 0.21

8'' 102.1 7.25F 0.64 0.65P 0.26

9'' 115.5 7.20F 0.68 0.69P 0.33

10'' 129.7 7.15F 0.72 0.73P 0.37

11'' 144.6 7.11F 0.75 0.77P 0.44

1'- 0'' 160.4 7.07F 0.79 0.81P 0.51

1'- 1'' 177.0 7.04F 0.83 0.85P 0.60

1'- 2'' 194.4 7.01F 0.86 0.89P 0.67

1'- 3'' 212.6 6.99F 0.90 0.93P 0.77

1'- 4'' 231.5 6.96F 0.94 0.97P 0.86

1'- 5'' 251.1 6.95F 0.98 1.01P 0.95

1'- 6'' 271.3 6.93F 1.01 1.05P 1.05

1'- 7'' 292.2 6.93F 1.05 1.08P 1.16

1'- 8'' 313.7 6.92F 1.08 1.12P 1.28

1'- 9'' 335.8 6.92F 1.12 1.15P 1.39

1'-10'' 358.5 6.92F 1.16 1.19P 1.53

1'-11'' 381.8 6.92F 1.19 1.22P 1.70

2'- 0'' 405.7 6.93F 1.23 1.26P 1.84

2'- 1'' 430.2 6.93F 1.26 1.29P 2.00

2'- 2'' 455.3 6.94F 1.30 1.33P 2.14

2'- 3'' 481.1 6.94F 1.33 1.36P 2.25

2'- 4'' 507.4 6.95F 1.37 1.39P 2.35

2'- 5'' 534.3 6.96F 1.40 1.43P 2.39

2'- 6'' 561.4 6.97F 1.44 1.46P 2.42

2'- 7'' 588.8 6.98F 1.47 1.49P 2.44

2'- 8'' 616.3 6.99F 1.51 1.51P 2.44

2'- 9'' 643.8 7.00F 1.54 1.54P 2.44

2'-10'' 671.4 7.01F 1.58 1.56P 2.44

2'-11'' 698.9 7.02F 1.61 1.58P 2.44

3'- 0'' 726.5 7.03F 1.64 1.60P 2.44

3'- 1'' 754.0 7.04F 1.67 1.62P 2.44

87 WPB – Coastal Patrol Boat Page 19 of 38

FUEL OIL (P)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

3'- 2'' 781.6 7.05F 1.70 1.64P 2.44

3'- 3'' 809.1 7.05F 1.74 1.65P 2.44

3'- 4'' 836.6 7.06F 1.77 1.67P 2.44

3'- 5'' 864.2 7.06F 1.80 1.68P 2.44

3'- 6'' 891.7 7.07F 1.83 1.70P 2.44

3'- 7'' 919.3 7.07F 1.86 1.71P 2.44

3'- 8'' 946.8 7.08F 1.89 1.72P 2.44

3'- 9'' 974.4 7.08F 1.92 1.73P 2.44

3'-10'' 1001.9 7.09F 1.95 1.74P 2.44

3'-11'' 1029.5 7.09F 1.98 1.75P 2.44

4'- 0'' 1057.0 7.10F 2.01 1.76P 2.44

4'- 1'' 1084.5 7.10F 2.04 1.77P 2.44

4'- 2'' 1112.1 7.10F 2.07 1.78P 2.44

4'- 3'' 1139.6 7.11F 2.10 1.79P 2.44

4'- 4'' 1167.2 7.11F 2.13 1.79P 2.44

4'- 5'' 1194.7 7.11F 2.16 1.80P 2.44

4'- 6'' 1222.3 7.12F 2.19 1.81P 2.44

4'- 7'' 1249.8 7.12F 2.22 1.81P 2.44

4'- 8'' 1277.4 7.12F 2.25 1.82P 2.44

4'- 9'' 1304.9 7.13F 2.28 1.83P 2.44

4'-10'' 1332.4 7.13F 2.30 1.83P 2.35

4'-11'' 1360.0 7.13F 2.33 1.84P 1.93

5'- 0'' 1387.5 7.13F 2.36 1.84P 0.98

5'- 1'' 1403.8 7.13F 2.38 1.85P 0.00

95% 1333.6 2.32

100% 1403.8

87 WPB – Coastal Patrol Boat Page 20 of 38

FUEL OIL (S)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 24.9 8.08F 0.34 0.33S 0.02

1'' 31.6 7.91F 0.38 0.37S 0.05

2'' 39.2 7.76F 0.42 0.41S 0.07

3'' 47.6 7.64F 0.45 0.45S 0.09

4'' 56.8 7.54F 0.49 0.49S 0.12

5'' 66.9 7.45F 0.53 0.53S 0.14

6'' 77.8 7.37F 0.57 0.57S 0.19

7'' 89.6 7.30F 0.61 0.61S 0.21

8'' 102.1 7.25F 0.64 0.65S 0.26

9'' 115.5 7.20F 0.68 0.69S 0.33

10'' 129.7 7.15F 0.72 0.73S 0.37

11'' 144.6 7.11F 0.75 0.77S 0.44

1'- 0'' 160.4 7.07F 0.79 0.81S 0.51

1'- 1'' 177.0 7.04F 0.83 0.85S 0.60

1'- 2'' 194.4 7.01F 0.86 0.89S 0.67

1'- 3'' 212.6 6.99F 0.90 0.93S 0.77

1'- 4'' 231.5 6.96F 0.94 0.97S 0.86

1'- 5'' 251.1 6.95F 0.98 1.01S 0.95

1'- 6'' 271.3 6.93F 1.01 1.05S 1.05

1'- 7'' 292.2 6.93F 1.05 1.08S 1.16

1'- 8'' 313.7 6.92F 1.08 1.12S 1.28

1'- 9'' 335.8 6.92F 1.12 1.15S 1.39

1'-10'' 358.5 6.92F 1.16 1.19S 1.53

1'-11'' 381.8 6.93F 1.19 1.22S 1.70

2'- 0'' 405.7 6.93F 1.23 1.26S 1.84

2'- 1'' 430.2 6.94F 1.26 1.29S 2.00

2'- 2'' 455.3 6.94F 1.30 1.33S 2.14

2'- 3'' 481.1 6.95F 1.33 1.36S 2.25

2'- 4'' 507.4 6.96F 1.37 1.39S 2.35

2'- 5'' 534.3 6.97F 1.40 1.43S 2.39

2'- 6'' 561.4 6.98F 1.44 1.46S 2.42

2'- 7'' 588.8 6.99F 1.47 1.49S 2.44

2'- 8'' 616.3 7.00F 1.51 1.51S 2.44

2'- 9'' 643.8 7.01F 1.54 1.54S 2.44

2'-10'' 671.4 7.02F 1.58 1.56S 2.44

2'-11'' 698.9 7.03F 1.61 1.58S 2.44

3'- 0'' 726.5 7.04F 1.64 1.60S 2.44

3'- 1'' 754.0 7.05F 1.67 1.62S 2.44

87 WPB – Coastal Patrol Boat Page 21 of 38

FUEL OIL (S)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

3'- 2'' 781.6 7.06F 1.70 1.64S 2.44

3'- 3'' 809.1 7.07F 1.74 1.65S 2.44

3'- 4'' 836.6 7.07F 1.77 1.67S 2.44

3'- 5'' 864.2 7.08F 1.80 1.68S 2.44

3'- 6'' 891.7 7.08F 1.83 1.70S 2.44

3'- 7'' 919.3 7.09F 1.86 1.71S 2.44

3'- 8'' 946.8 7.10F 1.89 1.72S 2.44

3'- 9'' 974.4 7.10F 1.92 1.73S 2.44

3'-10'' 1001.9 7.11F 1.95 1.74S 2.44

3'-11'' 1029.5 7.11F 1.98 1.75S 2.44

4'- 0'' 1057.0 7.11F 2.01 1.76S 2.44

4'- 1'' 1084.5 7.12F 2.04 1.77S 2.44

4'- 2'' 1112.1 7.12F 2.07 1.78S 2.44

4'- 3'' 1139.6 7.13F 2.10 1.79S 2.44

4'- 4'' 1167.2 7.13F 2.13 1.79S 2.44

4'- 5'' 1194.7 7.13F 2.16 1.80S 2.44

4'- 6'' 1222.3 7.13F 2.19 1.81S 2.44

4'- 7'' 1249.8 7.14F 2.22 1.81S 2.44

4'- 8'' 1277.4 7.14F 2.25 1.82S 2.44

4'- 9'' 1304.9 7.14F 2.28 1.83S 2.44

4'-10'' 1332.4 7.15F 2.30 1.83S 2.35

4'-11'' 1360.0 7.15F 2.33 1.84S 1.93

5'- 0'' 1387.5 7.15F 2.36 1.84S 0.98

5'- 1'' 1403.8 7.15F 2.38 1.85S 0.00

95% 1333.6 2.32

100% 1403.8

87 WPB – Coastal Patrol Boat Page 22 of 38

OILY WATER (S)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 0.3 0.54F 1.41 2.87S 0.00

1'' 1.0 0.38F 1.46 2.94S 0.00

2'' 2.1 0.31F 1.52 3.00S 0.00

3'' 3.5 0.28F 1.58 3.07S 0.00

4'' 5.4 0.26F 1.63 3.13S 0.00

5'' 7.6 0.25F 1.69 3.19S 0.03

6'' 10.2 0.24F 1.74 3.25S 0.03

7'' 13.2 0.23F 1.80 3.31S 0.03

8'' 16.4 0.22F 1.85 3.37S 0.03

9'' 19.7 0.22F 1.90 3.41S 0.03

10'' 23.0 0.22F 1.95 3.44S 0.03

11'' 26.3 0.21F 2.00 3.46S 0.03

1'- 0'' 29.6 0.21F 2.04 3.48S 0.03

1'- 1'' 33.0 0.21F 2.09 3.49S 0.03

1'- 2'' 36.3 0.21F 2.13 3.50S 0.03

1'- 3'' 39.6 0.21F 2.17 3.51S 0.03

1'- 4'' 42.9 0.20F 2.22 3.52S 0.03

1'- 5'' 46.2 0.20F 2.26 3.52S 0.03

1'- 6'' 49.5 0.20F 2.30 3.53S 0.03

1'- 7'' 52.8 0.20F 2.35 3.54S 0.03

1'- 8'' 56.1 0.20F 2.39 3.54S 0.03

1'- 9'' 59.4 0.20F 2.43 3.54S 0.03

1'-10'' 62.7 0.20F 2.47 3.55S 0.03

1'-11'' 66.0 0.20F 2.52 3.55S 0.03

2'- 0'' 69.3 0.20F 2.56 3.55S 0.03

2'- 1'' 72.6 0.20F 2.60 3.56S 0.03

2'- 2'' 75.9 0.20F 2.64 3.56S 0.03

2'- 3'' 79.2 0.20F 2.68 3.56S 0.03

2'- 4'' 82.5 0.20F 2.73 3.56S 0.03

2'- 5'' 85.6 0.20F 2.77 3.56S 0.00

100% 85.6

87 WPB – Coastal Patrol Boat Page 23 of 38

LUBE OIL (S)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 0.0 0 0 0 0.00

1'' 0.4 28.82A 8.05 7.64S 0.00

2'' 1.5 28.82A 8.10 7.64S 0.00

3'' 3.0 28.82A 8.15 7.64S 0.00

4'' 4.7 28.82A 8.20 7.64S 0.00

5'' 6.5 28.82A 8.25 7.64S 0.03

6'' 8.5 28.82A 8.30 7.64S 0.03

7'' 10.7 28.82A 8.35 7.64S 0.03

8'' 12.9 28.82A 8.39 7.64S 0.03

9'' 15.1 28.82A 8.44 7.64S 0.03

10'' 17.4 28.82A 8.48 7.64S 0.03

11'' 19.7 28.82A 8.53 7.64S 0.03

1'- 0'' 22.0 28.82A 8.57 7.64S 0.03

1'- 1'' 24.2 28.82A 8.62 7.64S 0.03

1'- 2'' 26.4 28.82A 8.66 7.64S 0.03

1'- 3'' 28.5 28.82A 8.70 7.64S 0.03

1'- 4'' 30.4 28.82A 8.74 7.64S 0.03

1'- 5'' 32.3 28.82A 8.77 7.64S 0.03

1'- 6'' 33.9 28.82A 8.80 7.64S 0.03

1'- 7'' 35.2 28.82A 8.83 7.64S 0.03

1'- 8'' 36.2 28.82A 8.85 7.64S 0.03

1'- 9'' 36.4 28.82A 8.86 7.64S 0.00

95% 34.6 0.03

100% 36.4

87 WPB – Coastal Patrol Boat Page 24 of 38

DIRTY OIL (P)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 0.3 0.54F 1.41 2.87P 0.00

1'' 1.0 0.38F 1.46 2.94P 0.00

2'' 2.1 0.31F 1.52 3.00P 0.00

3'' 3.5 0.28F 1.58 3.07P 0.00

4'' 5.4 0.26F 1.63 3.13P 0.00

5'' 7.6 0.25F 1.69 3.19P 0.03

6'' 10.2 0.24F 1.74 3.25P 0.03

7'' 13.2 0.23F 1.80 3.31P 0.03

8'' 16.4 0.22F 1.85 3.37P 0.03

9'' 19.7 0.22F 1.90 3.41P 0.03

10'' 23.0 0.22F 1.95 3.44P 0.03

11'' 26.3 0.21F 2.00 3.46P 0.03

1'- 0'' 29.6 0.21F 2.04 3.48P 0.03

1'- 1'' 33.0 0.21F 2.09 3.49P 0.03

1'- 2'' 36.3 0.21F 2.13 3.50P 0.03

1'- 3'' 39.6 0.21F 2.17 3.51P 0.03

1'- 4'' 42.9 0.20F 2.22 3.52P 0.03

1'- 5'' 46.2 0.20F 2.26 3.52P 0.03

1'- 6'' 49.5 0.20F 2.30 3.53P 0.03

1'- 7'' 52.8 0.20F 2.35 3.54P 0.03

1'- 8'' 56.1 0.20F 2.39 3.54P 0.03

1'- 9'' 59.4 0.20F 2.43 3.54P 0.03

1'-10'' 62.7 0.20F 2.47 3.55P 0.03

1'-11'' 66.0 0.20F 2.52 3.55P 0.03

2'- 0'' 69.3 0.20F 2.56 3.55P 0.03

2'- 1'' 72.6 0.20F 2.60 3.56P 0.03

2'- 2'' 75.9 0.20F 2.64 3.56P 0.03

2'- 3'' 79.2 0.20F 2.68 3.56P 0.03

2'- 4'' 82.5 0.20F 2.73 3.56P 0.03

2'- 5'' 85.6 0.20F 2.77 3.56P 0.00

100% 85.6

87 WPB – Coastal Patrol Boat Page 25 of 38

SEWAGE

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 32.9 20.03F 1.26 0.01P 0.29

1'' 39.6 20.05F 1.31 0.01P 0.37

2'' 46.9 20.06F 1.37 0.02P 0.43

3'' 54.6 20.08F 1.42 0.03P 0.51

4'' 62.7 20.10F 1.47 0.04P 0.60

5'' 71.1 20.11F 1.52 0.06P 0.66

6'' 79.9 20.13F 1.57 0.08P 0.74

7'' 89.0 20.14F 1.62 0.10P 0.83

8'' 98.5 20.15F 1.67 0.13P 0.91

9'' 108.4 20.16F 1.73 0.15P 1.00

10'' 118.6 20.17F 1.78 0.18P 1.11

11'' 129.1 20.18F 1.83 0.21P 1.23

1'- 0'' 139.8 20.19F 1.88 0.24P 1.31

1'- 1'' 150.9 20.19F 1.93 0.27P 1.43

1'- 2'' 162.3 20.20F 1.98 0.30P 1.51

1'- 3'' 173.9 20.21F 2.03 0.34P 1.60

1'- 4'' 185.8 20.21F 2.08 0.37P 1.69

1'- 5'' 198.0 20.22F 2.13 0.41P 1.74

1'- 6'' 210.4 20.22F 2.18 0.44P 1.80

1'- 7'' 223.0 20.23F 2.23 0.47P 1.83

1'- 8'' 235.7 20.23F 2.28 0.50P 1.86

1'- 9'' 248.5 20.24F 2.33 0.53P 1.89

1'-10'' 261.5 20.24F 2.38 0.56P 1.89

1'-11'' 274.4 20.24F 2.43 0.59P 1.91

2'- 0'' 287.5 20.25F 2.48 0.61P 1.94

2'- 1'' 300.6 20.25F 2.52 0.63P 1.97

2'- 2'' 313.8 20.26F 2.57 0.65P 2.00

2'- 3'' 327.0 20.26F 2.62 0.67P 1.91

2'- 4'' 340.3 20.27F 2.66 0.69P 1.51

2'- 5'' 353.6 20.27F 2.71 0.71P 0.69

2'- 6'' 360.6 20.27F 2.74 0.72P 0.00

100% 360.6

87 WPB – Coastal Patrol Boat Page 26 of 38

POTABLE WATER (P)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 0.6 0.91F 3.46 6.07P 0.00

1'' 1.1 0.78F 3.52 6.02P 0.00

2'' 1.9 0.67F 3.58 6.00P 0.00

3'' 2.9 0.58F 3.64 6.00P 0.00

4'' 4.2 0.52F 3.70 6.02P 0.00

5'' 5.8 0.49F 3.77 6.06P 0.00

6'' 7.7 0.46F 3.83 6.11P 0.00

7'' 10.0 0.45F 3.89 6.17P 0.03

8'' 12.6 0.43F 3.95 6.23P 0.03

9'' 15.6 0.43F 4.01 6.28P 0.03

10'' 18.8 0.42F 4.06 6.34P 0.06

11'' 22.4 0.41F 4.12 6.40P 0.08

1'- 0'' 26.4 0.41F 4.18 6.47P 0.08

1'- 1'' 30.7 0.41F 4.24 6.53P 0.11

1'- 2'' 35.3 0.40F 4.29 6.59P 0.14

1'- 3'' 40.2 0.40F 4.35 6.65P 0.17

1'- 4'' 45.5 0.40F 4.41 6.71P 0.17

1'- 5'' 50.7 0.40F 4.46 6.76P 0.17

1'- 6'' 56.0 0.40F 4.51 6.80P 0.17

1'- 7'' 61.3 0.40F 4.56 6.83P 0.17

1'- 8'' 66.6 0.40F 4.61 6.86P 0.17

1'- 9'' 71.9 0.40F 4.66 6.88P 0.17

1'-10'' 77.2 0.40F 4.71 6.91P 0.17

1'-11'' 82.5 0.40F 4.75 6.92P 0.17

2'- 0'' 87.8 0.39F 4.80 6.94P 0.17

2'- 1'' 93.1 0.39F 4.84 6.95P 0.17

2'- 2'' 98.4 0.39F 4.89 6.97P 0.17

2'- 3'' 103.7 0.39F 4.93 6.98P 0.17

2'- 4'' 109.0 0.39F 4.98 6.99P 0.17

2'- 5'' 114.3 0.39F 5.02 7.00P 0.17

2'- 6'' 119.6 0.39F 5.06 7.00P 0.17

2'- 7'' 124.9 0.39F 5.11 7.01P 0.17

2'- 8'' 130.2 0.39F 5.15 7.02P 0.17

2'- 9'' 135.5 0.39F 5.19 7.03P 0.17

2'-10'' 140.8 0.39F 5.24 7.03P 0.17

2'-11'' 146.0 0.39F 5.28 7.04P 0.17

3'- 0'' 151.3 0.39F 5.32 7.04P 0.17

3'- 1'' 156.6 0.39F 5.37 7.05P 0.17

87 WPB – Coastal Patrol Boat Page 27 of 38

POTABLE WATER (P)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

3'- 2'' 161.9 0.39F 5.41 7.05P 0.17

3'- 3'' 167.2 0.39F 5.45 7.06P 0.17

3'- 4'' 172.5 0.39F 5.49 7.06P 0.17

3'- 5'' 177.8 0.39F 5.54 7.06P 0.17

3'- 6'' 183.1 0.39F 5.58 7.07P 0.17

3'- 7'' 188.4 0.39F 5.62 7.07P 0.17

3'- 8'' 193.7 0.39F 5.66 7.07P 0.17

3'- 9'' 199.0 0.39F 5.71 7.08P 0.08

3'- 9'' 200.5 0.39F 5.72 7.08P 0.00

100% 200.5

87 WPB – Coastal Patrol Boat Page 28 of 38

POTABLE WATER (S)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

0'' 0.6 0.91F 3.46 6.07S 0.00

1'' 1.1 0.78F 3.52 6.02S 0.00

2'' 1.9 0.67F 3.58 6.00S 0.00

3'' 2.9 0.58F 3.64 6.00S 0.00

4'' 4.2 0.52F 3.70 6.02S 0.00

5'' 5.8 0.49F 3.77 6.06S 0.00

6'' 7.7 0.46F 3.83 6.11S 0.00

7'' 10.0 0.45F 3.89 6.17S 0.03

8'' 12.6 0.43F 3.95 6.23S 0.03

9'' 15.6 0.43F 4.01 6.28S 0.03

10'' 18.8 0.42F 4.06 6.34S 0.06

11'' 22.4 0.41F 4.12 6.40S 0.08

1'- 0'' 26.4 0.41F 4.18 6.47S 0.08

1'- 1'' 30.7 0.41F 4.24 6.53S 0.11

1'- 2'' 35.3 0.40F 4.29 6.59S 0.14

1'- 3'' 40.2 0.40F 4.35 6.65S 0.17

1'- 4'' 45.5 0.40F 4.41 6.71S 0.17

1'- 5'' 50.7 0.40F 4.46 6.76S 0.17

1'- 6'' 56.0 0.40F 4.51 6.80S 0.17

1'- 7'' 61.3 0.40F 4.56 6.83S 0.17

1'- 8'' 66.6 0.40F 4.61 6.86S 0.17

1'- 9'' 71.9 0.40F 4.66 6.88S 0.17

1'-10'' 77.2 0.40F 4.71 6.91S 0.17

1'-11'' 82.5 0.40F 4.75 6.92S 0.17

2'- 0'' 87.8 0.39F 4.80 6.94S 0.17

2'- 1'' 93.1 0.39F 4.84 6.95S 0.17

2'- 2'' 98.4 0.39F 4.89 6.97S 0.17

2'- 3'' 103.7 0.39F 4.93 6.98S 0.17

2'- 4'' 109.0 0.39F 4.98 6.99S 0.17

2'- 5'' 114.3 0.39F 5.02 7.00S 0.17

2'- 6'' 119.6 0.39F 5.06 7.00S 0.17

2'- 7'' 124.9 0.39F 5.11 7.01S 0.17

2'- 8'' 130.2 0.39F 5.15 7.02S 0.17

2'- 9'' 135.5 0.39F 5.19 7.03S 0.17

2'-10'' 140.8 0.39F 5.24 7.03S 0.17

2'-11'' 146.0 0.39F 5.28 7.04S 0.17

3'- 0'' 151.3 0.39F 5.32 7.04S 0.17

3'- 1'' 156.6 0.39F 5.37 7.05S 0.17

87 WPB – Coastal Patrol Boat Page 29 of 38

POTABLE WATER (S)

Sounding Volume LCG VCG TCG FSM ft-in gal ft-MS ft-BL ft-CL ft-LT

3'- 2'' 161.9 0.39F 5.41 7.05S 0.17

3'- 3'' 167.2 0.39F 5.45 7.06S 0.17

3'- 4'' 172.5 0.39F 5.49 7.06S 0.17

3'- 5'' 177.8 0.39F 5.54 7.06S 0.17

3'- 6'' 183.1 0.39F 5.58 7.07S 0.17

3'- 7'' 188.4 0.39F 5.62 7.07S 0.17

3'- 8'' 193.7 0.39F 5.66 7.07S 0.17

3'- 9'' 199.0 0.39F 5.71 7.08S 0.08

3'- 9'' 200.5 0.39F 5.72 7.08S 0.00

100% 200.5

87 WPB – Coastal Patrol Boat Page 30 of 38

FRAME TABLE

Location Feet Aft FP Feet

From Midships (Fwd-Aft)

Feet

Forward AP

Frame 0 -4.66 44.49 F 84.32

Frame 1 1.38 41.21 F 81.04

FP Frame 1.42 0.00 39.83 F 79.66

Frame 2 1.90 37.93 F 77.76

Frame 3 5.18 34.65 F 74.48

Frame 4 8.46 31.36 F 71.19

Frame 5 11.75 28.08 F 67.91

Frame 6 15.03 24.80 F 64.63

Frame 7 18.31 21.52 F 61.35

Frame 8 21.59 18.24 F 58.07

Frame 9 24.87 14.96 F 54.79

Frame 10 28.15 11.68 F 51.51

Frame 11 31.43 8.40 F 48.23

Frame 12 34.71 5.12 F 44.95

Frame 13 37.99 1.84 F 41.67

Midships Frame 13.56 39.83 0.00 39.83

Frame 14 41.27 1.44 A 38.39

Frame 15 44.55 4.72 A 35.10

Frame 16 47.83 8.01 A 31.82

Frame 17 51.12 11.29 A 28.54

Frame 18 54.40 14.57 A 25.26

Frame 19 57.68 17.85 A 21.98

Frame 20 60.96 21.13 A 18.70

Frame 21 64.24 24.41 A 15.42

Frame 22 67.52 27.69 A 12.14

Frame 23 70.80 30.97 A 8.86

Frame 24 74.08 34.25 A 5.58

Frame 25 77.36 37.53 A 2.30

AP Transom 25.7 79.66 39.83 A 0.00

The Forward and Aft Draft Mark locations are shown on page 9.

Frame spacing is 39-3/8” (1000mm).

87 WPB – Coastal Patrol Boat Page 31 of 38

CHANGE IN KG CAUSED BY 1-LT ADDED WEIGHT

1 Long Ton Added @

Frame

Location

Height Above

Baseline

Change in

KG

Full Load

Change in

KG

Min. Op.

Crews’ Berthing Fr. 6 7.30 ft 0.01 ft 0.00 ft

Main Deck Aft Fr. 19 13.9 ft 0.07 ft 0.07 ft

Main Deck Fwd Fr. 4 14.6 ft 0.08 ft 0.08 ft

Pilot House Fr. 13 20.7 ft 0.14 ft 0.15 ft

CHANGE IN TRIM CAUSED BY 1-LT ADDED WEIGHT

Change in Trim (inches, positive Aft) with 1 LT added at frame:

F r

Change in Draft at Fwd

Marks =

-0 .9

.8

.7

.6

.4

.3

.2

.1

.0

.5 in Trim = 2

-1

-2

-3 in Draft at Aft

Marks =

1. Change in Trim = Draft at AP – Draft at FP

2. Corrections are computed for normal Full Load operating condition but may be used for all displacements and drafts throughout the operating range.

3. To use this table when unloading, reverse plus and minus signs.

4. Filling both Diesel Oil Tanks to 95% changes the trim 5.2 inches by the bow. Filling both

Fresh Water Tanks to 100% changes the trim 0.3 inches by the bow.

87 WPB – Coastal Patrol Boat Page 32 of 38

HYDROSTATIC PROPERTIES NOMOGRAPH

The NOMOGRAPH on the next page allows the user to determine displacement, LCF, tons per inch immersion, and moment to change trim of the cutter by using the forward and aft draft readings.

To use the Nomograph: Locate on the graph the forward and aft draft readings. Along a line joining these two marks read the displacement. Place a horizontal line through the displacement and read the moment to change trim one inch and the tons per inch immersion. Draw a vertical line through the displacement and on the bottom scale read the longitudinal position of the center of flotation (LCF).

Full hydrostatic properties of the vessel are provided in drawing number 87-WPB_079_006.

87 WPB – Coastal Patrol Boat Page 33 of 38

NOMOGRAPH

87 WPB – Coastal Patrol Boat Page 34 of 38

FULL LOAD CONDITION

Weight VCG LCG TCG FS Mom

Item LT ft ft aft MS ft Stbd CL ft-LT

LIGHT SHIP 80.20 8.13 3.66 -0.04

Crew and Effects 1.30 10.90 -17.62 0.00

Ammo 0.14 12.43 -24.37 2.75

Misc. Weights 0.32 6.14 -1.68 3.42

Fresh Water 1.49 5.72 -0.39 0.00 0.0

Diesel Oil 8.28 2.30 -7.15 0.00 4.6

Lube Oil 0.12 8.81 28.82 7.64 0.0

Sewage 0 0 0 0 0

Oily Water 0 0 0 0 0

FULL LOAD Condition 91.85 7.61 2.29 -0.01 4.6

Stability Calculation Trim Calculation

KMt 13.30 ft LCF Draft 5.19 ft

KG 7.61 ft LCB 2.29 ft aft MS

F.S. Correction 0.05 ft LCF 2.64 ft aft MS

KGv 7.66 ft MT1in 14.88 ft-LT

GMt (Solid) 5.69 ft Trim 0.00 ft

GMt (Corrected) 5.64 ft List 0.1P degrees

Drafts

Draft at Fwd Marks 5.19 ft to the BL

Draft at Aft Marks 5.82 ft to the bottom of the Skeg (extended)

Draft at F.P. 5.19 ft to the BL

Draft at M.S. 5.19 ft to the BL

Draft at A.P. 5.19 ft to the BL

Note: The bottom of the Skeg (extended) at the Aft Marks is 7-1/2” below the baseline.

87 WPB – Coastal Patrol Boat Page 35 of 38

DETAILS OF FULL LOAD CONDITION

Crew and Effects

3 Crew in Pilot Hse 0.24 20.95 -4.23 0.00

3 Crew & Effects on Mn Dk 0.38 13.11 -1.23 0.00

5 Crew/8 Effects Lower Dk 0.68 6.12 -11.63 0.00

TOTAL Crew & Effects 1.30 10.90 -7.23 0.00

Ammunition 0.14 12.43 -24.37 2.75

Misc. Items

Provisions 0.23 6.83 -1.77 4.75

Mooring Lines 0.09 4.35 -1.43 0.00

TOTAL Misc. Items 0.32 6.14 -1.68 3.42

Fresh Water

Port FW @100% 200 gal 0.74 5.72 4.26 -7.08 0.00

Stbd FW @100% 200 gal 0.74 5.72 4.26 7.08 0.00

TOTAL FW 401 gal 1.49 5.72 4.26 0.00 0.00

Diesel Oil

Port DO @95% 1334 gal 4.14 2.30 -7.15 -1.83 2.32

Stbd DO @95% 1334 gal 4.14 2.30 -7.15 1.83 2.32

TOTAL DO 2667 gal 8.28 2.31 -7.15 0.00 4.64

Lube Oil

Clean Oil @95% 35 gal 0.12 8.81 28.82 7.64 0.00

Dirty Oil @0% 0 0 0 0 0.00

TOTAL LO 35 gal 0.12 8.81 28.82 7.64 0.00

Sewage

Sewage @0% 0 0 0 0 0

Gray Water @0% 0 0 0 0 0

TOTAL Sewage 0 0 0 0 0

Oily Water @0% 0 0 0 0 0

87 WPB – Coastal Patrol Boat Page 36 of 38

MINIMUM OPERATING CONDITION

LIGHT SHIP 80.20 8.13 3.66 -0.04

Crew and Effects 1.30 10.90 -17.62 0.00

Ammo 0.07 12.43 -24.37 2.75

Misc. Weights 0.17 5.52 -1.59 2.24

Fresh Water 0.99 5.18 -0.39 0.00 0.3

Diesel Oil 2.76 1.25 -6.94 0.00 4.2

Lube Oil 0.16 5.71 16.06 2.81 0.1

Sewage 0.97 2.29 -20.01 -0.27 1.9

Oily Water 0.16 2.20 -0.21 3.52 0.0

MIN OP Condition 86.78 7.84 2.68 -0.02 6.5

Stability Calculation Trim Calculation

KMt 13.63 ft LCF Draft 5.04 ft

KG 7.84 ft LCB 2.27 ft aft MS

F.S. Correction 0.07 ft LCF 2.98 ft aft MS

KGv 7.91 ft MT1in 14.86 ft-LT

GMt (Solid) 5.79 ft Trim 0.20 ft

GMt (Corrected) 5.72 ft List 0.2P degrees

Drafts

Draft at Fwd Marks 4.93 ft to the BL

Draft at Aft Marks 5.75 ft to the bottom of the Skeg (extended)

Draft at F.P. 4.93 ft to the BL

Draft at M.S. 5.03 Ft to the BL

Draft at A.P. 5.13 ft to the BL

Note: The bottom of the Skeg (extended) at the Aft Marks is 7-1/2” below the Base line.

87 WPB – Coastal Patrol Boat Page 37 of 38

DETAILS OF MINIMUM OPERATING CONDITION

Crew and Effects

3 Crew in Pilot Hse 0.24 20.95 -4.23 0.00

3 Crew & Effects on Mn Dk 0.38 13.11 -1.23 0.00

5 Crew/8 Effects Lower Dk 0.68 6.12 -11.63 0.00

TOTAL 1.30 10.90 -7.23 0.00

Ammunition 0.07 12.43 -24.37 2.75

Misc. Items

Provisions 0.08 6.83 -1.77 4.75

Mooring Lines 0.09 4.35 -1.43 0.00

TOTAL 0.17 5.52 -1.59 2.24

Fresh Water

Port FW @65% 134 gal 0.50 5.18 -0.39 -7.03 0.17

Stbd FW @65% 134 gal 0.50 5.18 -0.39 7.03 0.17

TOTAL 267 gal 0.99 5.18 -0.39 0.00 0.32

Diesel Oil

Port DO @32% 445 gal 1.38 1.25 -6.94 -1.28 2.08

Stbd DO @32% 445 gal 1.38 1.25 -6.94 1.28 2.08

TOTAL 889 gal 2.76 1.25 -2.29 0.00 3.74

Lube Oil

Clean Oil @75% 27 gal 0.09 8.67 28.82 7.64 0.03

Dirty Oil @25% 21 gal 0.07 1.92 -0.23 -3.36 0.03

TOTAL 48 gal 0.16 5.71 16.06 2.81 0.06

Sewage

Sewage @67% 237 gal 0.91 2.29 -20.23 -0.49 1.87

Gray Water @33% 18 gal 0.07 2.25 -17.04 2.75 0.06

TOTAL 255 gal 0.97 2.26 -20.01 -0.27 1.93

Oily Water @50% 42 gal 0.16 2.20 -0.21 3.52 0.03

87 WPB – Coastal Patrol Boat Page 38 of 38

PROCEDURES AFTER DAMAGE

The user should be familiar with the guidance provided in the Naval Ships Technical Manual, Chapter 079, Volume 1.

THE FOLLOWING STEPS SHOULD BE TAKEN WHENEVER FLOODING OCCURS:

STEP ONE: CLOSE ALL OPENINGS TO PREVENT PROGRESSIVE FLOODING.

STEP TWO: ESTABLISH FLOODING BOUNDARIES AS CLOSE TO THE AREA OF

DAMAGE AS POSSIBLE.

STEP THREE: ASSESS THE SITUATION TO DETERMINE WHETHER STABILITY IS

CRITICAL BEFORE TAKING FURTHER ACTION.

STEP FOUR: REMOVE FLOODING WATER FROM THE CUTTER, IF POSSIBLE, EXCEPT THIS

PROCEDURE SHOULD BE HALTED IF THE REMOVAL RESULTS IN LENGTHENING

THE PERIOD OF ROLL OR A LARGER HEEL ANGLE.

STABILITY IS CRITICAL IF ANY OF THE FOLLOWING CONDITIONS EXIST:

• More than one main compartment is flooding.

• Cutter has an erratic and/or long roll period, and a tendency to hang at the end of the roll.

• High winds (in excess of 20 knots) and rough seas are prevailing.

• Cutter's KGv prior to damage exceeded the Limiting KGv from the diagram on page

13.

• The cutter's trim prior to damage exceeded either 1 foot by the bow or stern.

• The Main Deck is awash at any point.

IF STABILITY IS CRITICAL, the following action must be taken whether there is a list or not:

• Take all necessary action to ensure the safety of the crew. Make certain that personnel will not be trapped or otherwise injured by a sudden roll or capsize.

• Favor stability in handling the cutter. Steer into seas or heave to and avoid rolling as far as possible. Avoid radical maneuvering.

• Jettison topside weight. This is a slow and labor intensive operation, and the improvement gained will usually be small. Consider this in extreme conditions.