Stability Booklet.PDF

;>'"t"" " ""-, ~ "'" c •

UNITED STATES DEPARTMENT OF COMMERCE

National Oceanic and Atmospheric Administration NOAA Marine and Aviation Operations Marine Operations Center 1801 Fairview Avenue East Seanle, Washington 98102-3767

June 24, 2009 MOP22

MEMORANDUM FOR: Commander Ralph R . Rogers, NOAA Command i ng 0 f fie e r, NCloi·"""~:tl:lpl];~,.,:.:v

FROM: Robert Chief, SUBJECT: NOAA Ship Nancy Foster Trim and Stability Booklet

ATTACHMENTS: (1) Drawing No. NF-079-002, Revision D, NOAA Ship Nancy Foster Trim and Stability Booklet

(2) American Bureau of Shipping (ABS) letter OPN: 2172547, Task: 468076/SDM, dated June 23 , 2009, "NANCY FOSTER", ABSID 9101982, 186.5' X 40.0' X 16.0', Oceanographic Research Vessel (ON 1108119), Stability Review on Behalf of

USCG / NVIC 3-97

(3) Weight Reporting Form

The Marine Center has received Attachment (1) which provides the ABS approved Trim and Stability Booklet for the NOAA Ship Nancy Foster. The ABS approval of this document is indicated by the ABS stamp located on the cover sheet. Furthermore, Attachment

(2) provides correspondence indicating that ABS has reviewed and approved Attachment (1).

Attachment (1) reflects the conversion of Void No. 2-19-0 to a sewage holding tank.

The Marine Center has tasked The Glosten Associates with provision of the Glosten Shipboard Stability Program (GSSP) for the NOAA Ship Nancy Foster. GSSP will be based on Attachment (1). It will be forwarded to the ship upon receipt at the Marine Center.

All questions and comments regarding the attachments should be directed to Mr. Raymond Hermes in the Marine Operations Center, Pacific, at 206-553-5307 .

All future light ship weight changes should be reported to Mr. Raymond Hermes via Attachment (3).

cc: (w / o attachments)

NMAO

MOA

MOC2

- Rear Admiral Philip M. Kenul

- Captain Michael Devany

- Bob Wilmot

MOC2 - Jim Stricker MOC22 - Raymond Hermes

(w i attachments)

NMA03 - Bill Cunningham MOC2 - Jamie LeCompte USMMA - Kelly Curtin The Glosten Associates - Justin Morgan

REV ZONE

A ALL

B SH 19

SH 26

SH 27

SH 29

SH 30

SH 32

SH 33

SH 18

SH ..

REVISIONS

ITEM DESCRIPTION DATE APPROVED

1. GENERAL REVISION TO INCL REVISED GMr 12/19/02 EDS

CURVES FROM REVISED DAMAGE STABILITY

ANALYSIS THAT INCL MAIN DECK ACCOM

SPACES IN THE FLOODED VOLUME.

1. CORR DIRTY OIL TANK 100% CAP (GAL) EDS

& WEIGHT IN TANK CAPACITY TABLE.

2. MOD FOLLOWING LOAD COND TO SUIT

CORR DIRTY OIL TANK CAPACITY.

T2--TYPICAL MISSION, MID-VOYf"I\JL.......", 13--TYPICAL MISSION, ARRIVAL ;:s

S2--SSE MISSION, MID-VOYAGE -:S

S3--SSE MISSION, ARRIVAL 01

C2--CORING MISSION, MI~-::-~6VAGE

C3--CORING MISSION, AR~1..

3. MOD LOAD COND PLOT ON ~

REQUIRED CURVES AND ~ 7{VAILABLE"

TO SUIT. ~

4. MOD LOAD COND

ICING ON "GM RE

AVAILABLE, I

(CONT(2tJ

CO

~'" EFFECT OF

AND GM

ICING" TO SUIT.

NATIONAL OC J"\' ... , ",-, AND ATMOSPHERIC ADMINISTRATION

E OF NOM CORPS OPERATIONS

NOAA SHIP NANCY FOSTER

TRIM & STABILITY BOOKLET

JEC CAGE CODE NOAA DRAWING NUMBER REV

A OYLJ5 NF-079-002 D

NOAA SCALE: NONE CAD FILENAME SHT 1 OF 37

(CONTINUED FROM SHEET 1)

REVISIONS

REV ZONE ITEM DESCRIPTION DATE APPROVED

C

1. GENERAL REVISION TO INCL RESULTS OF 03/ 06/06 AAA/ EDS

ALL STABILl1Y TEST CONDUCTED 26 JAN 2006 AT OmENS SHIPYARD INC, NORTH

CHARLESTON SC

2. ADDED REVISIONS CONTINUATION SHEET ~O)

3. REVISED HYDROSTATIC PROP, DRAFT DIAG, ( :~ TRIM DIAG, TBL OF LCF VS DISPL & TRI~

TBL OF KMT VS DISPL & TRIM INCID TO

ADDING BILGE KEELS & XDCR FAIRING~~

4. DELETED LOAD COND S1, S2, S3, cn)

C2 , & C3 CV

5. MOD MISSION LOADS & MISSIO~~D

WORKSHEET t)j

6. MOD EXTM LOAD COND & ~~ COND

n, T2, & T3 ~

7. MOD GM REQUIRED C~ & TRIM

CURVES INCID TO RE . D HYDROSTATICS

~ 8. MOD LOAD COND IT ON "GM REQUIRED

CURVES AND G~ AILABLE" & ON "GM

REQUIRED AND ~ AVAILABLE, INCLUDING

ICING" TO sljf§J

9. CHANGE~AL COND FOR TRIM DIAG &

MOD EX E TO SUIT

10. CHA~ INITIAL CO ND FOR TABLES "GM

CHA DUE TO FILLING TANKS" & "GM

~GE DUE TO ADDING WEIGHT"

11 . ,A ED "TABLE OF LCG AS FUNCTION OF

'15!SPLACEMENT AND TRIM" WITH INSTR FOR

ITS USE. MOD TEXT INSTR FOR COMPUTING

0 TRIM TO SUIT.

( -:;'4 2. ADDED TABLE "REQUIRED METACENTRIC

HEIGHT (GMr) AS FUNCTION OF LCF DRAFT

AND TRIM". MOD TEXT INSTR FOR

OBTAINING GMr TO SUIT.

(CONTINUED ON SHEET 3)

SIZE CAGE CODE NOM DRAWING NUMBER REV

A OYLJ5 NF-079-002 D

SCALE: NONE CAD FI LENAM E ISHT 2 OF 37

(CONTINUED FROM SHEET 2)

REVISIONS

REV ZONE ITEM DESCRIPTION DATE APPROVED

1 . GENERAL REVISION TO INCL RESULTS OF 03/ 02/09

ALL LIGHTSHIP WEIGHT UPDATE BASED UPON AM/GJ

WEIGHT CHANGE REPORTS FOR THE YEARS

2007 THROUGH 2009

2. GENERAL REVISION TO INCL CHANGES DUE ~ TO CONVERSION OF VOID 2-18-0-V TO

A TREATED SEWAGE HOLDING TANK . ~

3. ADDED REVISIONS CONTINUATION SHEET ~3....'

4. MOD VESSEL CHARACTERISTICS ~

5. MOD MISSION LOADS & MISSION L~

WORKSHEET C

6. ADDED MINIMUM FREE SURFA~-.&iMENT

REQUIREMENT PER CFR 170.

7. MOD "GM CHANGE DUE ~Q:JLLlNG TANKS"

TO INCLUDE NEW SEWAG ANK

8. MOD "TANK CAPACITY ~LE" TO INCLUDE -. TREATED SEWAGE T~ ~

9. MOD EXTM LOAD NO & LOAD COND

T1, T2, & T3 ~

10. MOD LOAD ~ I!l PLOT ON "GM REQUIRED

CURVES AN~ M AVAILABLE" & ON "GM

REQUI~~~D GM AVAILABLE, INCLUDING

ICING" UIT

c,'" O.::y

~0 e;e;

SIZE CAGE CODE NOAA DRAWING NUMBER REV

A OYLJ5 NF-079-002 D

SCALE: NONE CAD FILENAME ISHT 3 OF 37

NOAA Ship Nancy Fo ster TRIM AND STABILITY

BOOKLET

Dwg : NF-079-002 IRev: 0

Sheet 4

CONTENTS

GENERAL NOTES

TABLE OF EQU I VALENTS

VESSEL CHARAC TER I STICS

WEIGH T CHANGE SUMMA RY ................ .. . ... . . .......... . 9:; . .

INSTRUCTIONS FOR DETERMINING STABILITY , TRIM , AND HEEL ~ ...

LO~ys:~::~~~~~ ;' ~~~~~~ . ~f ' ~~~~ i ~~ ; . ~~d ' ~~~~ . ~~~f~~e~~~~~ ' Trim

~~:~ility .:::::::::: :: : : : : : : : : : ::: : : : :: ::: : :0/,:::: ::::::

Sho r t Method .... .. .... ... .. . ............. . f1..!

Stability ....... .. . . . ........... . . . . . . 'n "-:-l '

DETERM::::G ' ~ ~ ~~~~~~~~~~ ' ~~~ ' ~~~ ~ ' ~~~~'~~~~~ ~~~~~~ ": ::::::

~ ROUTINE OPERATING INSTRUCTIONS ........ . (lj

ACTION FOLLOWING DAMAGE . ...... . . . . ... Q

PERIOD OF ROLL ~«)

:::,,::::::' ..••••••••••••••• if • •• • • •••. • • • • • • • • • • • •• •• ••

GM CHANGE DUE TO FILLING TANK~

GM CHANGE DUE TO ADD I NG W EI~

HYDROSTATIC PROPERTIES IZ~ trim , zero heel , VCG ~ O. DO)

TRI M CURVES .. ....... . ~rp

TABLE OF LCG AS FUNCTI~' OF DISPLAC EMENT AND TRIM

TABLE OF LCF AS FUN~~N OF DISP LACEMENT AND TRIM

TABLE OF KMT AS ~TION OF DISPLACEMENT AND TRIM

1 1

.2D

. 21

22 GM REQU I RED CUR~ AND GM AVAILAB LE

RE~~~R~~I~E~~~IC . ~~IG H T .. IGMR ) . AS . FU NCTION . OF . LCF . DRAFT

TANK CAP~~Y TABLE . . ... ...••••• ••..

MISSIO~~D TABLE . . .

EFFEC~OF ICING ON GM AVAILABLE

GrrB~UIRED AND GM AVAILABLE , INCLUDING ICING

ST~,(DARD LOADING CONDITIONS

I - Li ght ship E - Extreme Load , Departure 29 T1 - Typical Mi ss i on , Full Load Departure 30 T2 - Typica l Mission , Mid-Voyage (50 % Consuma bles ) 31 T3 - Typical Mission , Arrival (10 % Consumables) 32

MISSION LOAD WORKSHEET

BLANK CALCULATION FORM

Art And erson Assoc iates , 202 Pac ific Avenue , Bre m erton, W A 9833 7- 1932

..oo; ~ "

NOAA Ship Nancy Foster TRIM AND STABILITY

Dwg : NF-079-002 IRev: 0

1.

2.

3 .

4 .

5.

6 .

7.

Sheet 5

GENERAL NOTES

This booklet has been prepared to enable operating personnel to determine the ship' s ope r ating metacentric height (GM Available) and drafts for any condition of loading or operation. The instructions contained herein are intended to aid personnel in using this book l et and to provide the necessary operating information for maintaining satisfactory stability , trim , and list.

The loadi ng conditions shown in this Booklet are representa~i ~f this vessel in its service , as an oceanographic research vessel. The mi required values of GMt are , in all cases , to satisfy the requirements show the graph on sheet 22 . ~

Light ship characteristics were measured by a stabili~~~t conducted at Dey tens Shipyard Inc , North Charleston SC , on 26 Jan and modified by weight change reports for the years 2007 through 2009 . (ser-3 et 6 )

All weights are in long tons of 2240 pounds. All ~nts are in long ton-feet .

Reference planes for centers of gravity: C Center Units Reference ~~ Vertical feet baseline , measured ~~~ve upward Longitudinal feet fore perpendicular ~"ame 3) , measured positive aft Transverse feet centerline , port (C) or starboard (+)

The baseline is the horizontal line f~WhiCh vertical distances are measured . It is the intersection of A...hel inside surface of the bottom plating with the centerline . <:()'"U

All drafts are referenced to the ~~ine, except as otherwise noted.

~~~e~rims are trim on perpendic~ (LBP = 176.62 feet) , except as otherwise

~E OF EQUIVALENTS

1 Long Ton ef = 22 40 pounds 1 Cubic foot ~t) = 7.48 gallons

Sea Water ()~ Fresh Water r~ Fuel Oil ~ ,J LUbricat~' ~il Hydraul' 11 GaSOI~

35 . 0 CuFt/Ton

36.0 CuFt/Ton

43.0 CuFt/Ton

39.0 CuFt/Ton

38.5 CuFt/Ton

48.6 CuFt/Ton

or or or or or or

~ VESSEL CHARACTERISTICS

Length over~ (LOA) Length~~een Perpendiculars (LBP) Beam, ed (B) Depth , Ided , to Main Deck midship Depth , baseline to top of Main Deck plating midship Draft , Design Waterline Displacement at Design Waterline Light ship characteristics :

261. 8 269 . 3 321 . 6 291 . 7 288 . 0 363 . 5

186 ' 6 " gal/Ton gal/Ton gal/Ton gal/Ton gal/Ton gal/Ton

176 ' 7 .4 4 " 39 ' 11-3/4 " 16' 0 "

16 ' 0 - 5/16 " 10 ' 6"

1190 . 13 tons

Displacement 897 . 42 tons Vertical center of gravity Longitudinal center of gravity Transverse center of gravity

17.09 feet above baseline 84 . 32 feet (aft fore perp)

0.07 feet (stbd of centerline)

Art Anderson ASSOCIates, 202 PacIfIc Avenue , Bremerton , WA 98337 · 1932

NOAA Sh ip Nancy Foster TRIM AND STABILITY Dwg : N F -079-002 I Rev : 0

BOOKLET Sheet 6

WEI GHT CHANGE SUMMARY

Existing Lightshi p I 20114 53 17 . 06 I 34315385 I 84 . 28 I 169525242 I 0 . 06 I 120687

Addi t ions

11 Ale Pl ant 1080 12 . 00 12960 98 . 00 105840 0 . 00 0

.2 Ale Pl ant 1080 12 . 00 12960 102 . 00 110160 0 . 00 0

Ale Foundation 200 7 . 00 1400 100 . 00 20000 & 0 . 00 a Condenser x2 800 8 . 00 64 00 100 . 00 80000 < 0 . 00 a Ale Pip ing 350 10 . 00 3500 10 4. 00 364~ 0 . 00 0

Misc . Piping 100 12 . 00 1200 1l8 . 00

-5 . 00 - 500

Stbd St.ack (ME ) 512 33 . 00 16896 11 6 . 00 17.00 8704

Slbd Stack (GE) 230 33.00 7590 116.00 ~266BO 16.00 )680

Po" Stack (ME) 200 33.00 6600 116 . 0~( ..; 23200 -17.00 -3400

Port Stack (GEl 200 33.00 6600 1l:J II 23200 -15.50 -3100 t4SD Plant (Wet) 2100 8 . 00 16800 5 . 109200 -3.00 -6300 f4SD CL Tnk (F\Jll) 450 8.00 3600 ~ 00 22500 -4 . 00 - 1800

'2 Air Comp ressor 650 4.00 2600 <:) 1 . 00 85150 B.OO 5200

Por Lable Press Set 175 10 . 00 1:~ 0 94 . 00 16450 -13.00 -2275

Mast Stiffeni ng 457 64 . 00 292 59 . 00 26963 0 . 00 a

TOTAL ADDITIONS 8584 15.16 13~ 88 . 18 756935 0 . 02 209

- \\.~s Condenser

-725 10.00 ~~7250 100 . 00 -72500 0.00 a

AlC Foundation -1 500 8~~<

<0 -12000 100 . 00 -] 50000 0.00 0

Alc Compressor Mtr - 1000 9.00 - 9000 100 . 00 -100000 0.00 0

Chiller - 775 12d:t - 9300 100 . 00 - 77500 0.00 a Alc Piping - 150 ~o - 1500 104 . 00 -15600 0.00 0

Stbd Stack (foE) - 75 '-..;<1;9.75 - 2231 116 . 00 -8700 17.00 -1275

Stbd Stack (GEl - 30 " 29 . 75

- 893 116 . 00 - 3480 16.00 - 480

Po r t Stack (ME)

~ I)' 29.75 -893 116 . 00 -3480 -17 . 00 SID

Port Stack (GEl ~ 29.75 - 893 116 . 00 -3480 -15 . 50 '65

MSD Plant (Wet ) d';i5 8 . 00 - 36040 52 . 00 - 234260 -3 . 00 13515

. 2 Ai r Compressor ~-650 8.00 - 5200 125 . 00 - 81250 10 . 00 - 6500

Portable Press Set ~ - 340 10.00 - 3400 107 . 00 -36380 -13.00 4420

TOTAL R.EMJVALS <h- - 9810 9. 03 - 88599 80 .1 9 - 786630 - 1 . 09 10655

NEW LIGHTSHIP "X 2010227 17 . 09 34356890 84 . 32 169495547 0 . 07 131551

(long ton unlts) (JJ 897.42 17.09 15337 . 90 84 . 32 75667 . 66 0 . 07 58 . 73

0fb

Art Anderso n ASSOCiates , 202 PaCific Aven ue , Brem erton . W A 98337-1932

Dwg: NF-079-002 IRev : D

Sheet 7

INSTRUCTIONS FOR DETERMINING STABILITY , TRIM , AND HEEL

Long Method

Displacement, Center of Gravity , and Free Surface Moment:

Displacement , center of gravity , and free surface moment of a proposed loading condition is determined using the blank Loading Summary sheet as follows .

Detailed weights and centers o f gravit y must be identified for (5{ l deadweight on board including liquids in tanks , stores , miSSion load ite~ and deck cargo . ~

1 . LiqUids in tanks. ~ a . For each non-empty tank enter the tank' 5 load f~ ion (percent full value) on the Loading Summa r y sheet. ~ b . Using the tank ' s load fraction calculate the w~9ht as follows :

(1) Divide the load fraction percentage by~ to obtain a decimal value . ' \1-

(2) MUltiply the decimal value load frac~n by the 100 % capacity in gallons on the Tank Capacity Table~ sheet 24 to obtain the tank ' s load in gallons . 9j

(3) Divide the tank ' s load in gallO~bY the density in gallons per tOn from the Table of Equivalents (tj sheet 5 to obtain the weight of the tank ' s load . ~

For example , the weight for FwrL~el Oil Tank (P) at 63 % full is computed as follows. <t,~

Find decimal value load~action: 63 / 100 = 0.63

Find tank ' s load in g~ons: 0 . 63 • 16486 . 1 = 10386.2 gal

Find weight of tank~load : 10386.2 / 321 . 6 = 32 . 30 tons c . Free surface moment . ~

(1) For all empty t;.a~s enter 0 (zero) in the FS Mom column on the

Loading surnm~Sheet .

(2) For all tan~ except fresh water tanks , which are 100 % full enter o (zero) ~Q)lhe FS Mom column on the Loading Summary sheet. For fresh wa~ tanks which are 100 % full enter the FS Mom value from the Ta~~apacity Table on sheet 24 .

(3) For ~~ tanks which are slack find the FS Mom in the Tank Capacity T~~n sheet 22 and enter these values on the Loading Summary s~t .

d. MULt~'y the weight by the VCG , LCG , and TCG to obtain the vertical mo~- (VMOM) , longitudinal moment (LMOM) , and transve~se moment (TMOM) f0 each tank .

2. S~ists and Effects (SCI & EFT ).

Enter the number of scientist on board. Normally , the maximum number of scientist permitted is 21 , since this is the number of be~ths available .

Compute the weight of scientists and effect as follows:

SCI & EFT weight = number of scientists * 250 / 2240

Multiply the weight by the VCG , LCG , and TCG to obtain the vertical moment (VMOM), longitudinal moment ( LMOM), and transverse moment (TMOM).

Art Anderson ASSOCiates, 202 Pacific Avenue , Bremerton , WA 98337-1932

Dwg : NF-079 -002 IRev: 0

Sheet 8

3 . Stores.

4 .

Enter the percent load for PROVISIONS & STORES. Calculate the weight of stores as :

PROVISIONS & STORES weight = percent load * 4.36 / 100

Mu l tiply the weight by the VCG , LeG , and TCG to obtain the vertical moment (VMOM) , longitudinal moment (LMOM), and transverse moment (TMOM) for each stores item .

Enter the percent load for FRESH/ FROZEN FOODS . calculate~~Weight of stores as: ."V

FRESH/FROZEN FOODS weight = percent load * 1.79 fh>~ Multiply the weight by the VCG , LeG , and TCG to o~' the vertical moment (VMOM) , longitudinal moment (LMOM), and transvers ment (TMOM) for each stores item . ~

Mission load items . f\i NOAA Ship NANCY FOSTER operates with many di~rent mission configurations .

A typical mission loading is identified a~~~ndard mission loads for this Booklet . Mission load breakdown for stand~tF mission loads is shown on sheet 25 . ~

If the proposed mission loading cond~~n is identical to the standard mission loads, whose breakdown is s~'n on sheet 25 , copy the total weight , VCG , vertical moment (VMOM ), LCG~~itudinal moment (LMOM) , TCG , and transverse moment (TMOM ) to the ON LOAD line on the Loading Summary sheet. ~

M1SSlon load item values for o~er mlSSlon conf1gurat10ns can be determined USlng the Miss10n Load work~ (sheets 33 through 36) as follows .

a. Place a check mark 1n ~-"on Board " column next to any standard ltem to be carr1ed. Q)

b. Copy the weight Of~ checked items to the "LOAD " column .

c. Under "OTHER ITEr'rsJ list all non-standard mission load items such as scientific equi~nt , extra mission related spare parts, and the like.

Include each iOlb ' s weight in the " LOAD " column and each item ' s VCG , LCG , and TCG~ the associated column .

d . Calculate ~~ load's vertical moment , longitudinal moment , and transve~~Q';;~ent by multiplying its weight by its VCG , LCG , and TCG respect~iy .

e. Sum ",J1Jentries in the " LOAD", vertical moment , longitudinal moment , and tr~rse moment columns on each sheet . Copy the subtotal values for she~ts 33 , 34 , and 35 to sheet 36. Sum the subtotal values to obtain the t~al mission load weight and moments.

f r-~vide the total vertical moment by the total weight to obtain mission ~~ad VCG. Divide the total longitudinal moment by the total weight to obtain mission load LCG . Divide the total transverse moment by the total weight to obtain mission load TCG.

g. Copy the total weight , VCG, vertical moment (VMOM), LCG , longitudinal moment (LMOM), TCG, and transverse moment (TMOM) to the MISSION LOAD line on the Loading Summary sheet.

5. Miscellaneous deadweight and deck cargo .

a. Ente r miscellaneous deadweight and deck cargo load information not cove re d elsewhere on the Loading Summary sheet in the bla n k lines

Art Anderson Associates , 202 PaCifiC Avenue . Bremerton , WA 98337-1932

Dwg : N F -079 -002 I Rev: 0

Sheet 9 provided below the Mission Load line item. In addition to deck cargo these items could include additional scientific equipment , miscellaneous project gear , and the like . The information needed is: description I weight , vertical center of gravity (VCG) , longitudinal center of gravity (LeG) , and transverse center of gravity (TeG). I f the miscel l aneous deadweight load item contains a liquid loading the free surface moment (FS Mom) is also needed .

(1) The VCG for deck cargo shall be taken as the deck height on centerline at t hat l ocation plus 0.60 times the he~ t of the stowage . s::s b . Calculate each load ' s vertical moment , lOng~tudlna~~ent , and transverse moment by mU l tiplying its welght by 1~JJ?~~' LCG , and TCG respecti vely. ~

6 . Sum all weights , vertical moments , longitudinal m~~ts , transverse moments , and free surface moments on the Loading Summary~Qeet , including light ship values . : J If the total FS Mom for each consumable liqU~~pe is less than the minimum value listed below enter the minimu~~ Mom value from the list below in place of the computed total . ~

Fuel Oi l 237 . 6 ft~~ Fresh Water 20.2 .~~ns Lubo & Misc 53 . 5~~tons

The sum of weights is the proposed~~ding condition ' s displacement (DISPL) . ::u The sum of moments are the prop~ loading condition ' s total vertical moment (VMOM) , total longitudi~l - moment (LMOM) , total transverse moment (TMOM) , and total free surf~oment (FS Mom) .

7. Divide the total vertiC~l ~nt (VMOM) by the displacement (DISPL) to obtain the proposed loadl condltlon ' s VCG . Dlvlde the total longltudinal moment (LMOM) by the di cement (DISPL) to obtain the proposed loadlng condition ' s LCG . Divld<Zf e total transverse moment (TMOM) by the dlsplacement (DISPL) ~ obtaln the proposed loadlng condltlon ' s TCG.

Trim : ()~

Trim and drafts of ~~roposed loading condition are determined using the blank Loading summary~~as follows . Before trim and drafts can be determined the proposed loadin ndition ' s displacement (DISPL) and total longitudinal center of gravity (L~ ust be determined using the methods previously presented.

1 . Using ~roposed loading condition ' s displacement (DISPL) find the baseli r a ft at LCF (Tm) from the table of Hydrostatic Properties on sheet 17 . If)~ r mediate values can be determined by interpolation .

2. USi~~he proposed loading condition ' s displacement (DISPL ) and total l~~tudinal center of gravity (LCG) find t he TRIM from the graph of Trim Curves on sheet 18. Intermediate values of TRIM can be determined by interpolation . TRIM may also be determined using the Table of LeG as Function of Displacement and Tr im shown on s heet 19 . Instructions are provided on sheet 19.

TRIM aft (bow up) is positive and indicated algebraically by (+) . TRIM forward (bow down) is negative and indicated algebraically by (-) .

3 . Using the proposed loading condition ' s displacement (DISPL) and trim (TRIM) find the longitudinal center of flotation (LCF ) from the table of LCF as

Art Anderson AssocIates, 202 PacIfIc Avenue , Bremerton , WA 98337-1932

Dwg : N F -079-002 I Rev : 0

Sheet 10

Function of Displacement and Trim on sheet 20. Intermediate values can be determined by interpolation.

4. Determine drafts.

Keel drafts at the forward draft marks (DMfwd) and aft draft marks (DMaft) are found as follows (all dimensions are in feet) . Navigational or keel draft is equal to the baseline draft plus 5/8 inch (0.05 feet)

OMfwd = Tm + (TRIM * ( 12 . 00 - LCF) / LBP) + 0 . 05 Note : LBP = 176.62 OMaft = Tm + (TRIM * (150.00 - LCF) / LBP) + 0 . 05 9)

Draft at the PROJ draft marks (DMproj) , which are loca~~ way of the deepest transducer fairing, are found as follows (all nsions are in feet). . _~ OMproJ = Tm + (TRIM * ( 44. 00 - LCF) / LBP) + ~~ Note: LBP = 176.62

? r:; Stability:

Stability characteristics of a proposed loading ~n {tion are determined using the blank Loading Summary sheet as follows . Befo~stability characteristics can be determined the proposed loading conditi~ Displacement (DISPL), total vertical center of gravity (VCG) , total longi~lnal center of gravity (LCG) , total free surface moment (FS Mom), and TRI~ust be determined using the methods presented above. «)

1. Using the proposed loading condit io~disPla cement (DISPL) find the baseline draft at LCF (Tm) from t~~ble of Hydrostatic Properties on sheet

17. Intermediate values can be d~~ined by interpolation.

2. Using the proposed loading condi~on ' s displacement (DISPL ) and trim (TRIM) find the transverse metacenter~eight above baseline (KMt) from the table of KMt as Function of Displace,~ and Trim on sheet 21 . Intermediate values can be determined by interp~tion .

3. Calculate the uncorrecte~tacentric height (GM) as:

GM = KMt - VCG lJ?

4. Ca l culate the free s~ce correction (FS Corr) as :

FS Corr = Tota()~ Mom / OISPL

5. Calculate the av~able metacentric height (GM Available) corrected for free surface as: ;:::;.

GM Avai~ = GM - FS Corr

6 . Using th~seline draft at LCF (Tm) and TRIM find the minimum GM Required from the ph of GM ReqUIred Curves on sheet 22, or from the table of RequIr~ tacentrIc Helght (GMr) as Function of LCF Draft and Trim on sheet

23. IntXrmediate values of TRIM can be determined by interpolation .

7 . com~ the GM Available to the minimum GM Required by calculating the GM M~~ as follows :

GM Margin = GM Available - GM Required

The GM Margin must be positive (greater than zero) at all t imes .

Heel:

Hee l (list) of a proposed l oading condition i s determined , if desired, using the blank Loading Summary sheet as follows. Before heel can be determined the proposed loading condition's displacement (DISPL), GM Available, and total transverse moment (TMOM) must be determined using the methods previously presented.

Art Anderson AssocIates , 202 Pacific Avenue , Bremerton , WA 98337-1932

NOAA Ship Nancy Foster TRIM AND STABILITY Dwg : NF-079-002 IRev: 0

BOOKLET Sheet 11

l. Calculate t he hee l i ng moment tha t would c ause one degree of heel (MHl) as :

MHI ~ 0 . 01745 * GM Ava ilable * DI SPL

2 . Ca l cu l ate the ang l e of hee l by dividing the t otal transve r se moment (TMOM) by MHI . Port heel i s indicated a l gebra i cally by (-) , starboa r d by ( + ) .

Short Method :

Stabi l ity :

For mino r cha nges f rom a ny tabula t ed loading co ndit i on ( S heet~ t hrough 32) , the GM Available may be determined by applying GM correctio~et forth in the tab l es on she et 16 . This met hod is fast and reasonably acc~ te in eval uating a loading condit i on that is similar to o ne of th e represen~ive conditions shown in this boo kle t . is Trim :

The effect o n t r im of mi nor cha nges from the repre~ative loading conditions can be estimated f r om the t r im di ag ram on sheet ~ hi s met hod is sufficientl y accurate for practical purposes i n pre dicting ~ for a loading condition that 1S slmilar to one of the representat1ve condi t shown in this booklet .

(lj

DETERMIN I NG DISPLACEMENT AND T~~ROM OBSERVED DRAFTS

readings using the draf t diagram on sheet . In struct10ns are provided on the diagram . The dra f t dlag ram must be used t he av erage o f port and starboard draft read1ngs to ~llmlnate the effect eel .

ROUTI NE ~ATING INSTRUCTIONS

1. Cross connections between a ll ank pairs shall be kept closed at all times when the vessel is underway . ~

2. Excluding the Fuel Oil D~nks , the fe west number of tanks assigned to each type of consumable liqui 0 board the vessel sha ll be slack at any given time , to mlnimize free su r fac~e f ect .

3 . Bilges shall be kept ~ ed to minlmum content at all times .

4 . Trlm shall not exce\~ e values glven 1n the table below.

Dra f t .... J Maximum Trim by t he Bow Maximum Trim by the Stern

9 ' 3 " and be).o~ 0 . 5 feet 2 . 0 feet

9 ' 8 " and _~~ 2.0 feet 2 . 0 feet

Maximum Tr~bY the Bow for d rafts be tween 9 ' 3 " a nd 9 ' 8 " are obtaine d by i nterpo l 't},i n .

5 . LiqU i~~ding Instr uctions

As currently con f igu red , the NOAA Ship Nancy Foster does not have any seawater ballast tan ks . Therefore , liquid load i ng ins t ructions are limited to the l oading and consumption of potable water and of fuel oil .

Potable water tanks can be carried 100 % full at all times . While underway potable water tanks can be rep lenished from the on board water makers . Because of their af t location co nsumption of potable wa t er from the tanks will tend to ca use a for ward (bow d o wn) t rim to th e ve ssel. Such consumption of potable wate r should be mo nitored so that fo rwa r d trim does not become e xcess i ve .

The location of tan k ve nts i n Fwd Fuel Oil Tank s (SIP ) a nd Sewage Ta nk 1 prevents fi lli ng t he se tanks beyond 91% full . In pre pa ri ng trim a nd stabilit y ca l culation

Art Anderson Associates, 202 Pa Cific Avenue , Bremerton , WA 98337-1932

Dwg : NF-079-002 IRev: D

Sheet 12 for any proposed loading condition the load fraction for these tanks shall not exceed 91 %.

In order to maintain positive GM margin and to maintain aft trim to provide sufficient transom immersion to avoid stern slapping , the following sequence of burning from fuel oil tanks is recommended. In this sequence starboard/port tank pairs are considered to be consumed , or filled , together. Fuel Oil Day Tanks (SIP) and Emer Gen FO Tank are maintained 95 % full at all times.

Departure Condition: Fwd Fuel Oil Tanks (S/P) at 91% All other fuel oil tanks at 95 %

Burn from FO Tks No.1 until empty Transfer from Fwd FO Tks to FO Tks No . 1 until FO BUrn from FO Tks No . 1 until empty

~ No . 1 are at 95 %

(1 )

(2)

(3)

(4 )

(5)

(6)

(7)

(8 )

(9)

Transfer from Fwd FO Tks to FO Tks No.1 Burn from FO Tks No . 1 until empty Transfer from FO Tks No . 2 to FO Tks No . 1 until ~ks No.1 are at 52 % unti))~O Tks No . 1 are at 95 % r-J '00..;

Burn Burn Burn from FO Tks No . 1 until empty from FO Tks No , 2 until empty from Fwd FO Tks until Arrival

ACTION FOLLOWING DA~~

Most of the foregoing discussion applies to the~~ct properties of the vessel. In the event of underwater damage or entry of W~~,s~hrOUgh the weather envelope , stability and trim will be affected by the c~~quent flooding of spaces within the ve h ss

el. 1· . . Glh~ f h· 1 bd· . . W l e there are no regu atory crlterla In ~ case 0 t lS vesse for su lVlSlon or for stability after damage, the foll~~g should be noted.

The response of the vessel to floodin~Jl\1 depend on the draft , intact trim, and stability characteristics existing ~. ~iately prior to the incident , and the condition of the tanks , if any , inv d in the flooding. The r outine operating instructions tabulated above ar~d s'gned t o reduce the trim and list resulting from such flooding and to reduce ~ amount of corrective action to be taken in the inevitable period of confusion owing such an incident, Entry of a significant amount ~water into any part of the vessel should be regarded as an emergency sit~on and appropriate measures should be taken promptly. These would norm~~ include the following :

1. Call for assista~

2. Alert vessel p~~nel to the situation.

3. Close waterti~doors .

4. Open cross -~ections between pairs of tanks that have been damaged.

5. Favor st~~ty in handling the vessel . Head into the wind and sea if POSSibl~Oid hard turns .

6. Determ~the source of flooding and the spaces affected or likely to be affecF7,d.

7. Act~~e the bilge system , emergency generator , and other emergency systems a q quired .

8 . Establish flooding boundaries by shoring or patching , to prevent or limit progressive flooding.

In general, if trim and list reach a steady state with no further increases , chances of survival will be good. Further action will depend upon the degree of improvement in the vessel's attitude deemed necessary in the circumstances . For example , if the main deck aft is heavily awash , trimming by the head may be considered . If the vessel lists heavily as a result of unsymmetrical flooding, list correction may be undertaken .

Trim and list correction should generally be made by shifting liquids already on board rather than by taking on water ba llast , which will increase the draft and

Art Anderson ASSOCiates, 202 Pa c ific Avenue , Bremerton , WA 98337 -1932

Dwg : NF-079-002 Rev: 0

Sheet 13 reduce the reserve buoyancy. When shifting liquids , the following precautions should be observed:

1. DO NOT attempt to correct a list by shi fting liquids if any of the signs o f negative GM are present. These signs include :

a . a slow , erratic period of roll;

b . failure to return to upright after rolling to one side ; and c . listing alternatively to port and starboard .

2. If , and only if , it can be positively determined that a l~""is due to unsymmetrical flooding and that the vessel has a positive~ list correct ion by shifting of liquids may be undertaken slo~ and cautiously .

3 . Take suction from tanks which are already slack rather~n tanks which are full. This will minimize the increase in free surfac~ffect .

4 . Discharge to tanks which are slack , rather than em~ and preferably those which are nearly full. Press up into vent lines. ~

5 . Favor improvements in trim , if possible , when s~cting tanks for transfer .

Minor improvements in stability may also be accomplish~1by lowering movable weights . For example, cranes , if initially up in the~rking position , may be lowered to the fully-down position . In cases where ~vival takes precedence ove r all other considerations , heavy gear may be jetti~d , working from the upper decks down. Jett isoning is a slow and labori ousto~~ation and the improvement obtained will usually be small , therefore, it s~ld be considered only in an extreme situation . ~~

PERIOD~OLL

The natural period of roll of a vessel '~nversely proportional to the GMt in any particular loading condition . The curve low indicates the approximate relationship between GMt and period~~oll for the NOAA Ship Nancy Foster , and may be used to estimate the GMt when ro eriod can be measured. Such a measurement should only be made under relativel calm conditions when roll is fairly regular and at constant small amplitude . ~cn measuring roll period always measure the time for several rolls and divide by~ number of rolls observed. The period of a complete roll , such as port to~rboard and back to port , must be used with the curve . V Estimating GMt from the rol eriod is a means of checking only . It is not intended to take the place of the ~ulations described on sheets 7 through 10.

q.

8.0

~ /),.,,0 ~ 7 0 -+_--"'''':v...,. __ +-__ -'''-,,_+-_____ +-___ _ a

06.0 -+------jf-----+--a ii2 w 0..

5 6 7 8 GM (feet ]

Art Anderson Associates, 202 Pacific Avenue , Bremerton , WA 98337·1932

9 10 11

:1> :::J

Q) 3 ., DRAFT DIAGRAM

'" OJ

o

~ 2 t;:

"" . ~ TRIM = 1.00 TRIM LINE

(SEA WATER AT 35 CuFtjL Ton) (TRIM MEASURED ON LBP OF 176.62 Ft)

:1> 0> 0> o o· c;- O>

N o N I ~

~ 0 cr f-

'(9

-1s& !Yo

~\V,;;O (") '"- 11 f-c

=.0; ~ -' 1250 (") (f) ~ JC) :I' :1> "" 1200 '-("jC

PT "'A"

< cr f- {(9 ~ ~ i3 1150 or ,(;)

~ t;: 10 AFT DRAFT MK = 9' 9-3/8" § 1100 (9 CD ~ :5 1050 If ~ 0 PARALLE DISPLACEMENT = ,t~ L Tons 3 L TRIM LINE (f)

PROJ

r! 2 0

1~ o ~ f-

14 12 c

11~

(f)

"" cr

12 lOt;:

cr o '" t;: (5 950 ~ S- "" 9 MK = 11' 0-7/8" :::J '"- () - 0

9 ~

FWD DRAFT MK = 9' O" ~ '"-

to 85 8 GIVEN AVERAGE FWD, AFT, AND/OR PROJ DRAFTS 0' L 10

~ ~ FIND DISPLACEMENT AND TRIM: GIVEN DISPLACE"1~ AND TRIM

~ 1. CONNECT THE AVERAGE FWD DRAFT READING TO THE AVERAGE FIND AVERAGE Fvib!'\I'Z~AND PROJ DRAFTS:

AFT DRAFT READING WITH A STRAIGHT LINE. THIS LINE SHOULD 1. CONNECT POINT "A" E TRIM VALUE ~ 7 PASS THROUGH THE AVERAGE PROJ DRAFT READING. ALTERNATIVELY ON THE TRIM SCALE WI · ~.2RAIGHT N CONNECT THE AVERAGE PROJ DRAFT READING TO THE AVERAGE LINE. THIS IS THE 'tRIM bI~

AFT DRAFT READING. THIS LINE SHOULD PASS THROUGH THE 2 DRAW A STRAIGHT LINE PARALL~{) THE AVERAGE FWD DRAFT READING WHEN EXTENDED. . 'tRIM LINE" PASSING THROUGH THE

2. READ THE DISPLACEMENT WHERE THIS DISPLACEMENT VALUE ON THE DISPLACE-

LINE CROSSES THE DISPLACEMENT SCALE. MENT SCALE & EXTENDING TO THE FWD

3. DRAW THE "TRIM LINE" PARALLEL TO THIS AND AFT DRAFT SCALES.

LINE AND PASSING THROUGH POINT "A".

4. READ THE TRIM WHERE THE 'tRIM LINE"

CROSSES THE TRIM SCALE.

3. READ THE AVERAGE FWD, AFT, AND PROJ DRAFTS

WHERE THIS LINE CROSSES THE DRAFT SCALES.

o w

8 85 z

(f) or '0 til '" Cb -., -i ;:0

OJ» oz A rUJ

OJ

r

I" <D

Z I

-...J to I

(f) ~ ::J" 0

;u <1>

~I :<;

NOAA Ship Nancy Fasler TRIM AND STABILIlY

Dwg: NF -079-002 Rev: D Sheet 15

+4 --.---

TRIM DIAGRAM

DRAFT CORRECTIONS FOR EACH 10 TON LOAD

(DISPL = 1100 TONS; VCG = 16.25 FEET)

10 TON

50 *.5 ----------------------~~~------------~+4

+3 --k-----------If--- ~--~~----f-+3

'" Ql

+2

-B + 1 c: = w

------------------::wro':::9==----- -------------f- + 2

'" Ql

+1 g w

~ O-r--------~----~~------~~~~~------------------~-u "<.. DR"1[{ o ~ u t;:: -1 -j-------c7"""----- -------6~~- ----------=c""',tvGt~----

C> CO

-1 t;::

-2 --l-------------------~~--------------------------~~--1--2

-3

EXAMPLE:

NOTES:

0<::

?if oV:

IF DRAFT MA~{E 10' 4-7/8" FWD AND 9' 9-7/8" AFT AND A NEW LOAD OF

1 0 TONS IS D AT FRAME 73.

AFT FWD

DRAFT CHA~S FROM FIGURE +1.91" -055"

ORIGI~RAFT MARKS 9' 9-7/ 8" 10' 4-7/ 8"

FINAL 9 FTS 9'11-3/4" 10' 4-3/8"

-3

1. USE THIS TABLE TO DETERMINE THE EFFECT ON TRIM OF ADDING KNOWN WEIGHTS.

AS THE EXAMPLE INDICATES, THE INITIAL DRAFTS ARE CORRECTED BY AMOUNTS

DERIVED FROM THE FIGURE FOR THE LOCATION IN QuESTION. IF THE ADDED WEIGHT

IS DIFFERENT THAN 10 TONS, THE DRAFT CHANGES WILL BE PROPORTIONAL.

2. DRAFT CHANGES DuE TO WEIGHT REMOVALS MAY BE DETERMINED IN THE SAME

MANNER EXCEPT THAT THE SIGNS MUST BE REVERSED.

Art Anderson Associates, 202 Pacific Avenue , Bremerton, WA 98337 -1932

C>

NOAA Ship Nancy Foster TRIM AND S TABILIT Y Dwg : NF-079-002 IRev: 0

BOOKLET Sheet 16

GM CHANGE DUE TO FILLING TANKS

The effect on GM due to filling tanks can be estimated from the following table.

This table is a guide to aid in selecting tanks to be filled and is not intended as a substitute for detailed loading calculations . For emptying tanks , the change in GM will be the same as for weight added , but with the sign reversed.

Displ & VCG Before Filling Tk

TONS 1000 LT 1100 LT I~OO LT Liq TANK ADDED 16 . 50 ft 16.25 ft . 00 ft

GM CHANGE [~~'i FO Fwd Fuel Oil Tk IS) 46.65 -0 . 51 -0 . 42~\.- - 0.33 FO Fwd Fuel Oil Tk IP) 46.65 -0.51

-0.33

FO Fuel Oil Tk No 1 IS) 17 . 29 - 0 . 16 -0 . 09 FO Fuel Oil Tk No 1 IP) 17 . 29 -0 . 16 ~.12 -0 . 09 FO Fuel Oil Tk No 2 IS) 26 . 60 -0 . 29 !V'-0 . 23 -0.18 FO Fuel Oil Tk No 2 IP) 26.60 -0 . 29 ,~ -0.23 -0 . 18 FO Fuel Oil Day Tk IS) 6.00 -0.05 -0.04 -0.03 FO Fuel Oil Day Tk IP) 6 . 00 - 0 . r!£i -0.04 -0 . 03 FO Emer Gen FO Tk IS) 0 . 57 -~~' -0.02 -0.02

FW Potable Water Tk IS) 27.82 =<o...k 5 -0.19 -0 . 15 FW Potable Water Tk IP) 27.82 _«:P'. 25 -0.19 -0 . 15 SW Treated Sew Tk ICL) 27.22 ~' -0 . 19 -0.14 -0 . 09 SW Sewage Tank ICL) 29.79 .<:; -0.33 -0.27 -0 . 21 LO Dirty Oil Ti).nk ICL) 2.~~~ -0.01 +0.00 +0 . 01 SW Oily Bilge ;~.:?fIk IS) 4 2 -0 . 02 -0.02 -0 . 01

LO LO Storage Tank (P) ~~ -0 . 03 -0.02 -0 . 02

HO HO Storage Tank (P) -0 . 02 -0 . 01 -0.01 Fwd Fuel Oil Tanks and Treat~ ~ewage Tank filled to 91% , other fuel oil tanks filled ~ 95 % Potable water tanks filled~ 100% All other tanks filled to~% GM CHANGE includes loss~ to free surface during tank filling

~M CHANGE DUE TO ADDING WEIGHT

For estimating the ef~ on stability of weight changes at various levels , as from additional spare ge~ aeck cargo , and the like , the following table shows the change in GM re~g from an additional ten (10) long tons . For weights other than ten (10) 10 ns, the change in GM will be proportional . For weights removed at correspondin vels, the change in GM will be the same as for weight added, but with the sign ~rsed .

COlO Displ & VCG Before Adding Weight

V~ICAL LOCATION

VERTICAL 1000 LT 1100 LT 1200 LT

HEIGHT OF

ADDED WEIGHT 16 . 50 ft 16 . 25 ft 16 . 00 ft

[feet] GM CHANGE [feet]

Pilothouse Top 52.50 - 0 . 51 -0.45 -0 . 40

03 Level IBridge Dk) 44.50 -0 . 43 -0.37 -0.34

02 Level 36 . 00 -0 . 34 -0.30 - 0 . 27

01 Level (Focsle Ok) 27 . 50 -0.26 -0 . 22 -0 . 20

Main Deck 19 . 00 -0 . 17 -0 . 14 -0 . 12

Hold 8 . 75 -0 . 07 -0 . 05 -0 . 04

Art Anderson ASSOCiates, 202 Pacific Avenue , Bremerton , WA 98337 - 1932

NOAA Sh ip Nancy Foster TRIM AND STABILITY Dwg : NF-079-002 IRev: 0

BOOKLET Sheet 17

HYDROSTATIC PROPERTIES

( zero trim , zero heel , VCG - 0 . 00 )

LCF Draft DISPL KML KMT MTI TPI LCB LCF [ f eet] [tons] [feet] [ f eet] [ft -LT] [L tons] [feet] [feet]

8.25 807 . 36 307 . 98 25 . 91 117 . 32 12.55 81. 49 87.29 8 . 33 819 . 97 310 . 44 25 .8 3 120 . 10 12 . 65 81.59 87.67 8 .4 2 832.68 312 . 65 25 . 75 122 .8 3 12 . 75 81.68 88.13 8 . 50 84 5 . 49 314 . 64 25.69 125 . 52 12.85 81.78 88 . 53

8.58 858 . 41 318 . 58 25.66 129 .0 3 12 . 97 8 P.lJ 9 89 .08

8 . 67 871.46 323 . 39 25 . 62 132 . 97 13 . 11 ~OO 89 . 69

8 . 75 884.69 337 . 78 25 . 62 14 1. 00 13 . 36 ~ .1 3 90 . 95 8 . 83 898 . 18 352 . 66 25 . 68 149 . 45 13 . 62 • 2 . 27 92 . 28

8.92 911 . 93 366 . 02 25 . 82 157 . 49 13 : ~~ 82.43 93 . 53 9 . 00 925 . 92 378 . 02 26 . 08 165 . 15 14 . 82.61 94 . 71 9 . 08 940 . 1 6 388 . 29 26 .4 6 172 . 24 14 .~- 82 .8 0 95 . 77

9.17 954 . 62 396 . 67 26 . 96 178 . 66 ~'!;6 83 . 00 96 . 75

9.25 969 . 24 396 . 23 26 . 98 181.20 <)t . 64 83.21 96.97

9.33 983 .90 391 . 64 26 . 7 4 181.81 O R66 83 . 42 96 .9 0 9 .4 2 998 . 57 386 .9 6 26.51 182 . 32 b 14 . 68 83 . 61 96.85

9.50 1013 . 25 381 . 99 26 . 29 182 . 62~ 14 . 69 83 . 81 96 . 83

9.58 1027.94 377 . 15 26 . 08 182~V 14 .7 0 83 . 99 96 .8 1

9.67 1042 . 64 372 . 42 25.87 1~ 14.71 84 . 17 96 . 80 9 . 75 1057 . 35 367 . 81 25.67 14 . 71 84 . 35 96 . 78 9 . 83 1072 . 07 363 . 33 25 . 47 ct~ . 7~ 14 . 72 84 . 52 96 . 76 9 . 92 10 8 6 . 80 35 8 . 96 25.28 ~ 4 . 07 14 . 73 84 . 68 96 . 75

10 . 00 110 1. 53 354 . 69

25. ~~~ Ii 84 . 34 14 . 7 4 84 . 85 96 . 73

10 . 08 1116 . 28 350.53 24 . 92 184 . 62 14 . 75 85 . 00 96 . 72 10 . 17 1131. 03 346 . 47 24~ 184 . 89 14 . 76 85 . 16 96 . 71 10 . 25 1145 . 79 342.52 ~. t! 185 . 17 14.77 85 . 30 96.69 10 . 33 1160 . 57 338 . 65 . 42 185 . 44 14 . 77 85.45 96 . 68 10 .4 2 1175 . 34 334 . 88 iJ 4 . 27 185 . 71 14 .7 8 85 . 59 96 . 67 10 . 50 ll90.13 331.21 ~ 24 .1 2 185 . 98 14.79 85 . 73 96 . 65 10 . 58 1204 . 93 327.62 (1 ~ 23 . 97 186 . 26 14.80 85 .8 6 96 . 64 10 . 67 1219 . 73 324 . 1V 23 . 83 186 . 52 14 . 81 85.99 96 . 63 10 . 75 1234 . 54 32~ 23 . 69 186 . 79 14 . 82 86.12 96 . 62 10 . 83 1249 . 36 3~. 2 23 . 56 187 . 05 14 . 82 86.24 96 . 60 10 . 92 1264 .1 9 ~ . 05 23 .4 3 187 . 32 14 . 83 86 . 37 96.59 11 . 00 1279 . 02 " 0.85 23 . 30 187.59 14.8 4 86 . 48 96 . 58 ll.08 1293 . 87 ') p 307 . 72 23 . 18 187 . 86 14 . 85 86 . 60 96 . 57 ll.17 1308 . ~~ I' 304 . 66 23 . 06 188 .1 2 14 . 86 86 . 71 96 . 56 ll.25 1323~ 301.67 22 . 95 188 . 39 14 . 87 86 . 82 96 . 54 11 . 33 13~ 298.75 22 . 84 188 .66 14.87 86.93 96 . 53

11. 42 1~ 3 295 .8 9 22 . 73 188 . 94 14 . 88 87.04 96.52

11. 50 ~ . 21 293 . 08 22 . 62 189 .2 0 14.89 87 . 14 96 . 51

NOTES : 1 . (lJ"iML and KMT are measured from baseline.

'? LCB a nd LC F are measured aft of FP (Frame 03 )

3. MT 1 is defined for trim measured over the length between perpendiculars ILBP ~ 176.62 feet ) . Values shown are f or an assumed VCG o f zero feet above base line . For non-zero VCG the tabulated values are adjusted as shown below.

MTl' ~ MTI - I ( VCG ' • DISPL) / 112 • LBP) ) where: MT1 ' ~ adjusted moment t o trim 1 inch MTI ~ moment to trim 1 inch from table VCG ' ~ non-zero VCG measured from baseline , feet DISPL ~ displacement

Art Anderson ASSOCiates, 202 Pa CifiC Avenue , Bremerton, WA 98337 - 1932

NOM Ship Nancy Foster TRIM AND STABILITY

Dwg: NF -079-002 Rev: 0 Sheet 18

I Z

1400-r--------.--------.--------~--._--TO--.__.--,,--_.--_..__

TRIM CURVES

To find load condition's TRIM interpolat between trim curves at the load condition's displacement (DISPL) and longitudinal center of gravity (LCG).

1300~--------+--------+----~--~--~--~--~ __ ~H_+_--+_--~

1200-r------~--------~--~--~~~Tn~r_~--_+~_+--_+_+--

~ 1100~--------1_--~---f+_--~--~~~L---~--_+----~--~----1_- W

0..

(f) is

1000~------~+-+i~~-+~~--~+_~~--~--_7----~------~~

900~~~--~~~_7--~~--+_~_+----~r__f----~------_+--

78 80 82, 84 LCG [feet oft FP]

86 88 90

Art Anderson Associates, 202 Pacific Avenue, Bremerton, WA 98337-1932

NOAA Ship Nancy Fo ster TRIM AND STABILITY Dwg : NF-079-002 IRev : 0

BOOKLET Sheet 19

TABLE OF LCG AS FUNCTION OF DISPLACEMENT AND TRIM

DI SPL TRIM ( fee t ]

( t o n s] - 2 . 00 -1. 50 - 1 . 00 - 0 . 50 0 . 00 0.50 1. 00 1. 50 2.00 800 78 . 110 78 . 915 79 . 73 7 80 . 581 81.441 82 . 325 83 . 242 84.256 85 . 404

820 78 . 252 79 . 055 79 . 880 80 . 723 81 . 586 82 . 483 83 . 438 84 . 518 85 . 7 14

840 78 . 395 79 . 200 80 . 027 80 . 868 81. 7 41 82 . 654 83 . 670 ) :4 . 808 86 . 024

860 78 . 539 79 . 348 80 . 173 81 . 021 81. 904 82 . 853 83 . ~~ :85 . 116 86 . 3 18

880 78 . 688 79 . 498 80 . 324 81 .1 81 82.081 83.089 84 . 2 85 . 412 86 . 591

900 78 . 840 79 . 648 80 . 483 81 . 351 82 . 290 83.352 84 ~~~- 85 . 691 86 . 852

920 78 . 993 79 . 804 80 . 647 81 . 535 82 . 530 83.638 ~99 85 . 951 8 7 . 098

940 79 . 150 79 . 968 80 . 82 1 81 . 749 82 . 795 83 . 929 ~~ 070 86 . 205 87 . 330

960 79 . 313 80 . 137 81.011 81 . 992 83 . 079 84 . 207 5 . 328 86 . 444 87 . 550

980 7 9 . 483 80 . 319 81.230 82 . 256 83 . 363 84 . j.fl:.) 85.57 4 86.67 1 8 7 . 759

1000 79.659 80.516 81 . 476 82 . 538 83 . 634 ~t6 85 . 809 86 . 888 87 . 961

1020 79 . 847 80 . 741 8 1. 743 82 . 8 1 6 83 . 893 8 66 86 . 030 87 . 095 88 . 149

10 40 80 . 050 80 . 990 82 . 023 83 . 084 84 . 141 ~ . 196 86 . 248 87 . 290 88.330

1060 80 . 279 81.257 82 . 298 83 . 340 84 . ~~ 5.417 86 . 449 87 . 479 88.504

1080 80 . 530 81 . 53 5 82 . 562 83 . 586 84 .1'.0 85 . 630 86 . 645 87 . 660 88 . 67 0

1100 80 . 797 8 1. 806 82 . 816 83 . 820 8~'!W6 85 . 831 86 . 83 3 87 . 833 88 . 831

1120 81 . 071 82 . 067 83 . 056 84 . 04 8 ~ 39 86 . 027 87 . 014 88 . 001 88 . 982

11 40 8 1. 338 82 . 314 83 . 292 84.2 6~~ ¥ . 246 86.219 87 . 191 88 .1 60 89 .1 27

1160 81. 5 96 82.560 83 . 523 84 . 48~ 85 . 443 86 . 402 87 . 358 88.313 89 . 266

1180 81 . 844 82 . 7 94 83 . 7 42 ~. 85 . 634 86 . 577 87 . 520 88 . 460 89 . 399

1200 82 . 084 8 3 . 019 83 . 953 85 . 817 86 . 747 87 . 675 88 . 602 89 . 527

1220 82 . 315 83 . 237 84 . 158 ~ .077 85 . 994 8 6 . 911 87 . 826 88 . 739 89 . 651

12 40 82 . 539 83 . 448

8~1 ~5 . 261 86 .1 66 87 . 069 87 . 971 88 . 872 89 . 771

1260 82 . 755 83 . 651 84 . 5 85 . 439 86.331 8 7 . 222 88 . 112 89 . 000 89 . 886

1280 82 . 965 83 . 848 84 85 . 612 86 . 492 87 . 37 0 88 . 24 7 89 .1 23 89 . 998

1300 83 . 167 8 4 . 039 8~09 85 . 779 86 . 647 87 . 513 88 . 379 89 . 2 43 90 . 105

1320 83 . 363 84 . 224 ~ . 083 85 . 940 86 . 797 8 7 . 652 88 . 506 89 . 358 90 . 210

13 40 83 . 553 84.40~ 5 . 250 86 . 096 86 . 942 87 . 786 88 . 629 89 . 470 90 . 311

1 360 83 . 73 7 ~~ 85 . 412 86 . 248 8 7 . 083 87 . 916 88 . 748 89 . 579 90 . 408

1380 83 . 916 8 4 85 . 570 86 . 395 87 . 219 88 . 042 88 . 863 89 . 684 90 . 503

1400 84 . 089 i&A· %7 85 . 723 86 . 538 87 . 352 88 . 164 88 . 976 89 . 786 90 . 595

To obtain trim~ DISPL and LCG using the table abo ve first interpolate at the given DISPL to d the LeG at ea c h tabular value of TRIM , as shown below for DISPL ~ 1 054 .~ tons .

0-:- DISPL ~. TRI M ( f ee t ]

( tons ] -2 . 00 - 1 . 50 - 1 . 00 -0 . 50 0 . 00 0 . 50 1. 00 1. 50 2 . 00

1054 . 45 80 . 216 81 . 183 82 . 222 83 . 269 84 . 314 85 . 356 86 . 393 8 7 . 427 88 . 456

Find the t r im values that bra cke t the given LeG v a lue . For example , given LeG ~ 87 . 22 feet the trim values are 1 . 00 feet and 1 . 50 feet . Interpolate between these values to obtain t he TRIM for the given LCG , as shown be l ow for the example .

(1.50 - 1 . 00) ~ 1 . 40 feet TRIM ~ 1.00 + (87 . 22-86 . 393) ' ( )

87 . 427 - 86 . 393

Art Anderson ASSOCiates, 202 PaCific Avenue , Bremerton, WA 98337·1 932

NOAA Ship Nan cy Foster TRIM AND STABILITY Dwg : NF-079-002 IRev : D

BOOKLET Sheet 20

TABLE OF LCF AS FUNCT I ON OF DISPLACEMENT AN D TRIM

DISPL TRI M (feet]

(to ns] -2.00 -1. 50 -1.00 -0 . 50 0.00 0 . 50 1. 00 1. 50 2.00

800 83 . 960 84 . 5 67 85 . 419 86 . 262 87 . 136 88 .4 67 90 . 348 94 . 104 97 . 351

820 84 . 168 84 . 950 85 . 818 86 . 570 87 . 666 89 . 150 92 . 21 £ f'j 5 . 862 98 . 506

840 84 . 525 85 . 412 86 . 148 87 . 101 88 . 355 90 . 283 94 . 0~ 97 . 381 98 . 604

860 84 . 929 85 . 82 3 86 . 580 87 .720 89 . 151 92 . 25 7 95 .1\$ 98 . 065 98 . 449

880 85 . 380 86 . 089 87 . 149 88 . 383 90 . 505 94 . 106 # 45

97 . 979 98 . 306

900 85 . 746 86.559 87 . 756 89 . 238 92 . 448 95 . 742 ' !)_ . 590 97 . 820 98 . 151

920 86 . 163 87 . 165 88 . 400 90 . 702 94 . 211 97 . 0~ 97 . 517 9 7 . 694 97 . 996

940 86 . 723 87 . 864 89 . 318 92 . 565 95 . 763 ~ ~ 97 . 448 97 . 630 97 . 848

960 87 . 376 88 . 587 90 . 863 94 . 242 96 . 828 . 92 97 . 371 97 . 558 97 . 731

980 8 7 . 982 89 . 591 92 . 772 95 . 717 96.92J,. ~. 1 54 97 . 301 97 . 488 97 . 673

1 000 88 . 817 91.166 94 . 403 96 . 742 96 .~""", 97 . 056 97 . 234 97 . 412 97.600

1020 89 . 821 92 . 978 95 . 792 96 . 733 9 4 96 . 961 97 . 176 97 . 343 97 . 528

10 4 0 91.441 94 . 586 96 . 563 96 . 711 f:' 800 96 . 897 97 . 095 97 . 275 97 . 454

1060 93 . 178 95 . 843 96 . 607 96 . 6~~ 96 . 869 97 . 000 97 . 243 97.385 96 . 778

1080 94 . 669 96 . 454 96 . 590 96 . S; 96 . 7 56 96 . 845 96 . 942 97 . 134 97.316

1100 95 . 903 96 . 493 96 . 572 ~2 96 . 736 96 . 823 96 . 915 97 . 040 97 . 281

1120 96 . 381 96 . 477 96 . 554 ~6 . 635 96 . 71 7 96 . 802 96 . 891 96 . 985 97 . 172

1140 96 . 384 96 . 460 96 . 5~ ~6 . 617 96 . 698 96 . 781 96 . 869 96 . 961 97 . 082

1160 96 . 368 96 . 444 96~ 96 . 599 96 . 680 96 . 762 96 . 848 96 . 936 97 . 031

1180 96 . 352 96 . 428 9.f'.505 96 . 583 96 . 662 96 . 743 96 . 827 96 . 915 97 . 007

1200 96 . 336 96 . 413 ~-. 489 96 . 566 96 . 644 96 . 725 96 . 808 96 . 893 96 . 982

96 . 3~ 96 . 960 1220 96 . 320 96 . 473 96 . 550 96 . 628 96 . 707 96 . 789 96 . 872

1240 96.304 9~~ 96 . 457 96 . 534 96 . 611 96 . 690 96 . 770 96 . 853 96 . 939

1260 96 . 289 ~. 65 96 . 442 96 . 518 96 . 595 96 . 67 3 96 . 753 96 . 834 96 . 918

1280 96 . 272 ( 'J .349 96 . 426 96 . 502 96 . 579 96 . 657 96 . 73 7 96 . 815 96 . 898

1300 96.25~ 96 . 333 96 . 410 96 . 487 96 . 563 96 . 640 96 . 718 96 . 798 96 . 879

1320 96 Jj1; 96 . 317 96 . 394 96 . 471 96 . 548 96.624 96 . 702 96 . 780 96 . 860

13 4 0 ( (>223 96 . 301 96 . 378 96 . 455 96 . 532 96 . 608 96 . 685 96 . 763 96 . 843

1360 96 . 207 96 . 285 96 . 362 96.440 96 . 516 96 . 592 96 . 669 96 . 7 46 96 . 825

1380 96.190 96 . 268 96 . 346 96 . 424 96 . 501 96 . 577 96 . 653 96 . 730 96 . 808

1400 96.174 96 . 252 96 . 330 96 . 40 8 96 . 485 96 . 561 96 . 637 96 . 713 96 . 791

Art Anderson ASSOCiates. 202 PaCific Avenue . Bremerton , WA 98337-1932

NOAA Ship Nancy Fo ster TRIM AND STABILITY Dwg : NF-079-002 IRev : 0

BOOKLET Shee t 21

TABLE OF KMT AS FUNCTION OF DISPLACEMENT AND TRIM

DISPL TRI M I feet]

Itons] -2 . 00 -1 . 50 -1 . 00 -0 . 50 0 . 00 0 . 50 1. 00 1. 50 2 . 00

800 25 . 041 25 . 246 25 . 4 65 25 . 696 25 . 949 26 . 252 26 . 630 27.274 28 . 855

820 24 . 845 25 . 05 1 25 . 280 25 . 513 25 . 835 26 . 180 26 . ~~ )j7 . 736 29 . 560

840 24 . 661 24 . 890 25 . 103 25 . 389 25 . 72 1 26 . 143 26 . 8 28. 485 29 . 300

860 24.501 24 . 7 14 24 . 970 25.271 25 . 652 26 . 185 27 .9i~ 28 . 883 28 . 897

880 2 4. 354 2 4. 58 1 2 4. 850 25 .1 94 25 . 618 26 . 420 'S;~26 28 . 560 28 . 508 1--'

~ . 202 900 24. 213 24 .4 63 24 . 767 25 .1 32 25 . 696 26 . 906 28 . 186 28 . 14 1

920 24 . 096 24.366 2 4 .698 25.137 25 . 967 27 .?f5 27 . 827 27 . 821 27 . 793

940 23 . 992 24 . 302 2 4. 667 25 . 233 26 . 457 I;~ 27 . 467 27 . 464 27 . 453

960 23 . 932 24 . 241 2 4 . 689 25 . 539 26 . 964 . 130 27 . 127 27 . 124 27 . 122

980 23 . 859 24.245 2 4. 821 26 . 024 26 . 8~ ~6 . 799 26.801 26 . 799 26 . 799

1000 23 . 842 24 . 279 25 . 116 26 . 484 26 . ~~ 26 . 488 26 . 489 26 . 489 26 . 490

1020 23.841 2 4 .423 25 . 598 26 . 193 ~(g2 26 . 192 26.191 26.193 26 . 195

10 4 0 23 . 902 2 4. 738 25 . 861 25 . 905 ~. 905 25 . 906 25 . 906 25 . 910 25 . 913

1060 2 4 .075 25.174 2.5 . 634 25 . ~~ 25 . 630 25 . 63 2 25.636 25 . 636 25 . 643 -. , 1080 2 4. 375 25 . 338 1_"5 . 372 25~ 25 . 369 25 . 37 1 25 . 3 7 5 25 . 378 25 . 385

1100 24. 796 25 . 127 2 5 . 121 25 . 117 25 . 120 25 . 125 25 . 131 25 . 133

~~7: 1120 24 . 884 24 . 888 2 4. 881 24 . 878 24. 881 24 . 886 24 . 893 24 . 899

1140 24.667 24 . 658 2 4. 6;:;:: ~;4 . 649 24 . 649 24 . 651 24 . 657 24 . 664 24 . 673

1160 2 4.4 47 24 . 438 2 4~ 24 . 4 29 24 .4 29 2 4 . 432 24 .4 37 2 4. 444 24 . 454

1180 2 4. 237 24 . 22 8 2~ ,222 24 . 219 24 . 219 2 4 . 222 24 . 227 24 . 235 24. 2 45

1200 2 4. 035 2 4. 027 ~· . 021 24 . 018 24 . 018 2 4. 021 24 . 026 24 . 034 24. 0 4 4

23.8~ 1220 23.842 1-23 . 828 23 . 825 23 . 825 23 . 827 23 . 833 23 . 841 23 . 851

1240 23 . 657 2~ 23 . 643 23 . 641 23 . 641 23 . 643 23 . 648 23 . 656 23.666

1260 23 .4 80 8?: 72 23 .4 66 23 . 464 23 .4 64 23.466 23 . 471 23 . 479 23 . 48 9

1280 23 . 310< . 302 23 . 296 23 . 294 23.294 23.296 23 . 301 23 . 309 23 . 319

1300 23 . 14~ 23 . 139 23 . 134 23 . 131 23 . 131 23 . 134 23 . 139 23 . 146 23 . 156

1320 22i .rn 22 . 983 22 . 978 22 . 975 22 . 975 22 . 977 22 . 982 22 . 989 22 . 999

13 4 0 ~841 22 . 833 22 . 828 22 . 825 22 . 825 22 . 827 22 . 832 22 . 839 22 . 8 4 9

1360 22 . 69 7 22 . 689 22 . 684 22 . 682 22.682 22.684 22.688 22 .