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Vessel Stabilit

y

BOS-

P

RD-2

6

.900

6

01

G

ood

dra

i

na

g

e

of

dec

k

s

shall

be ma

i

nta

i

ned

at

a

ll

t

i

mes

because

w

ater

on

dec

k

reduces

the

stab

ili

ty

of

the

vesse

l.

U

n

l

ess

other

w

i

se

s

p

ec

i

f

i

ed

, i

f

the

vesse

l i

s

li

st

i

n

g

so

that

there

i

s

a

dan

g

er

of

g

ett

i

n

g

w

ater

on

dec

k

the

Maste

r

shall

ma

k

e every effort

to determ

i

ne

the

cause

of

the

li

st and

ta

k

e

i

mmed

i

ate act

i

on

to

reduce hee

l.

W

hen

p

i

p

e

dec

k

car

g

oes

(

or

other

car

g

oes

li

ab

l

e

to

p

rov

i

de

a

tem

p

orary

tra

p

for

w

ater

)

are

carr

i

ed

,

ade

q

uate

areas

shall

be

p

rov

i

ded

bet

w

een

ad

j

acent

sto

w

a

g

e

rac

k

s

and

bet

w

een

the

vesse

l

s

structure

and

sto

w

a

g

e

rac

k

s

to

ensure

free

dra

i

na

g

e

of

the

p

i

p

e

sto

w

a

g

e

p

os

i

t

i

ons:

such

areas

shall

be

i

n

e

x

cess

of

the

free

i

n

g

p

ort

area

p

rov

i

ded

.

4.

2 C

a

rgo

l

o

a

d

i

ng

a

nd d

is

ch

a

rg

e

W

hen

l

oad

i

n

g

car

g

o

,

the

Maste

r

shall

ensure

that

the

draft

at

l

oad

li

ne mar

k

does

not

e

x

ceed

the

P

li

mso

l

mar

k.

S

hou

l

d the

va

l

ue

of

the

P

li

mso

l

draft

fa

ll

above

the

ma

xi

mum

a

ll

o

w

ed

,

correct

i

ve

act

i

on

shall

be

ta

k

en

to

unburden

the

vesse

l

as

necessary

.

S

hou

l

d the

va

l

ue

of

the

vert

i

ca

l

he

i

g

ht

of

the

centre

of

g

rav

i

ty

(

VC

G)

fa

ll

above

the

ma

xi

mum

a

ll

o

w

ed

,

correct

i

ve

act

i

on

shall

be

ta

k

en as

fo

ll

o

w

s:

x

Chec

k

cond

i

t

i

on of

the

liq

u

i

d

tan

k

s

;

they

should

e

i

ther

be

fu

ll

and

p

ressed

u

p

or

com

p

l

ete

l

y dry

;

x

H

ead

i

nto

sea

;

x

S

ee

k

she

l

ter

and

a

l

ert

cre

w

as

g

ood

j

ud

g

ment d

i

ctates

.

W

hen

l

oad

i

n

g

car

g

o

attent

i

on

shall

be

p

a

i

d

to

the

need

for ma

i

nta

i

n

i

n

g

freeboard

at

the

stern

w

i

th

re

g

ard

to

the

safety

of

the

cre

w w

or

ki

n

g

on

dec

k

and

to

the

adverse

effect

tr

i

m

by

the

stern

has

on

the

stab

ili

ty

of

the

vesse

l.

I

n

add

i

t

i

on

, i

t

shall

be

ensured

that

the

stern

tr

i

m

li

m

i

tat

i

on

i

s ma

i

nta

i

ned

accord

i

n

g

the

va

l

ue

g

i

ven

by

the

i

nstruct

i

ons

i

n

the

Stability Book

.

Care

shall

be

ta

k

en

to

ensure

that

the

car

g

o

a

ll

ocated

to

the

sh

i

p

i

s

ca

p

ab

l

e

of

be

i

n

g

sto

w

ed

,

so

that

com

p

li

ance

w

i

th

the

cr

i

ter

i

a

can be

ach

i

eved

.

B

efore

a

voya

g

e

commences

,

care

shall

be

ta

k

en

to

ensure

that

the

car

g

o

and

s

i

zeab

l

e

p

i

eces

of

e

q

u

i

p

ment

have

been

p

ro

p

er

l

y

sto

w

ed

or

l

ashed

;

to m

i

n

i

m

i

se

the

p

oss

i

b

ili

ty

of

both

l

on

g

i

tud

i

na

l

and

l

atera

l

sh

i

ft

i

n

g w

h

il

e

at

sea

under

the

effect of

acce

l

erat

i

on

caused by

ro

lli

n

g

and

p

i

tch

i

n

g

.

Car

g

o

should

be

arran

g

ed

,

as

far

as

p

oss

i

b

l

e

,

to

be

un

l

oaded

from

the

to

p

, i.

e

.

dec

k

car

g

o

should

be

d

i

schar

g

ed

(

heav

i

est

i

tems

f

i

rst

)

before any under

dec

k

car

g

o

.

4.

2

.1

L

iq

u

i

d

c

a

rgo

A

l

w

ays

p

refer

l

oad

i

n

g

tan

k

s

l

ocated at

the bottom

,

but

cons

i

der

i

n

g

de

p

arture

and

arr

i

va

l

cond

i

t

i

ons

.

T

ry

to

k

ee

p

tan

k

s

d

i

str

i

but

i

on

cons

i

stent

bet

w

een

de

p

arture

and

arr

i

va

l

cond

i

t

i

ons

at

sea

;

E

.

g

: m

i

n

i

m

i

se

f

l

u

i

d

transfer

e

x

ce

p

t

for

consumab

l

es

and

fue

l

o

il.

A

l

w

ays

cons

i

der

tan

k

s

structura

l li

m

i

tat

i

ons

and

restr

i

ct

i

ons

on

l

oad

i

n

g/

un

l

oad

i

n

g

systems

.

4.

2

.

2

B

allast ta

n

ks

B

a

ll

ast

tan

k

s

i

n any

cond

i

t

i

on

w

h

i

ch are

to

be

fu

ll

shall

be

p

ressed

fu

ll.

T

an

k

s

w

h

i

ch

are

dry

should

be

com

p

l

ete

l

y

dry:

l

eft

over

l

eve

l

s

/

q

uant

i

t

i

es

shall

be

carefu

ll

y

est

i

mated

and

entered

i

n

the

stab

ili

ty

ca

l

cu

l

at

i

ons

.

Vers

i

on

S

F

(BOS-

P

RD-0

7

.900

6

01-

ver

.0

4

). O

r

i

g

i

na

l

date:

22

/

0

6

/

2012.

Vers

i

on

date:

3

1

/

12

/

201

5

.

Va

li

d

vers

i

on

on

l

y

on QM

S

s

i

te

.

U

ncontro

ll

ed

document

w

hen

p

r

i

nted

.

P

rocedure

p

re

p

ared by:

BOS

H

ead

of

O

p

erat

i

ons

.

App

roved

by:

BOS

H

ead

of

O

p

erat

i

ons

.

Va

li

dated by:

BOS

Qua

li

ty

R

e

p

resentat

i

ve

.

8

/

1

3

342