633/ Anchor Handling and Towing Operations Procedure / 992
A
nc
h
or
H
andlin
g
and To
w
in
g
O
p
erations
P
rocedure
BOS-
P
RD-2
6
.900
6
14
and
1
5
% l
ess
than
the
brea
ki
ng
stra
i
n
of
the
tow
-
w
i
re
.
x
T
he
Master
of the AH
TS
shou
l
d comp
l
y w
i
th the p
il
ot
’
s
i
nstruct
i
ons unt
il
the tan
k
er
i
s safe
l
y
moored on the buoy
.
x
Ensure
tow
li
ne
i
s
i
n
li
ne w
i
th
the
tan
k
er
to avo
i
d
hav
i
ng
the w
i
re
on
the
spar
i
ng
stopper
.
x
L
ength
of
tow
i
ng
li
ne
i
s
cr
i
t
i
ca
l
to
i
ts
e
l
ast
i
c
i
ty
and
ab
ili
ty
to
absorb
dynam
i
c
forces
. T
he
l
onger
i
s
the
tow
i
ng
li
ne
,
the
greater
i
s
i
ts
capac
i
ty
to
hand
l
e
dynam
i
c
tens
i
on
. W
ater
depth
w
ill
a
l
so
determ
i
ne
l
ength of w
i
re pa
i
d out
.
x
O
n comp
l
et
i
on of the moor
i
ng operat
i
on the tow w
i
re shou
l
d be veered to the des
i
red
l
ength
ta
ki
ng
i
nto account the water depth e
x
pected weather cond
i
t
i
ons and power re
q
u
i
rements
.
Unmoorin
g
x
W
hen
i
nstructed by the p
il
ot
,
reduce power
,
secure the tow w
i
re
i
n the shar
k
s
j
aw and
remove the tow w
i
re protect
i
on
.
x
T
hen the dec
k
crew have returned to the safe haven the tow w
i
res can be recovered
.
x
T
he AH
TS
shou
l
d ma
i
nta
i
n
a
pos
i
t
i
on d
i
rect
l
y astern of the tan
k
er
,
as the tan
k
er may st
ill
have
sternway
.
x
S
uff
i
c
i
ent power shou
l
d be ma
i
nta
i
ned to
k
eep c
l
ear of the vesse
l
s prope
ll
ers
.
x
O
nce re
l
eased the AH
TS
shou
l
d move c
l
ear of the tan
k
ers stern
.
x
T
he tugger may be used to recover the tow
i
ng pennant
.
Moorin
g
over t
h
e Bo
w
T
h
i
s operat
i
on fo
ll
ows the same bas
i
c pr
i
nc
i
p
l
es as moor
i
ng over the stern
;
however the operat
i
ons
may
be more hazardous due to the
li
m
i
ted space on the vesse
l
bow
.
Care must be ta
k
en when
f
l
a
ki
ng the pennants and pos
i
t
i
on
i
ng of shac
kl
es to avo
i
d damage to the e
q
u
i
pment and the sh
i
ps
structure
. I
n add
i
t
i
on as
v
i
s
i
b
ili
ty at the forward conn
i
ng pos
i
t
i
on
i
s
li
m
i
ted e
x
tra care must be ta
k
en
w
i
th commun
i
cat
i
ons w
i
th the dec
k
crew on the bow
.
4
.
4
.
7
Moorin
g
t
h
e e
xp
ort tan
k
er to
FS
O
/FPS
O
wh
ic
h
is moored to an
SP
M
T
h
i
s operat
i
on
i
s s
i
m
il
ar to the operat
i
on of moor
i
ng the e
x
port tan
k
er to an
S
PM e
x
cept dur
i
ng the
stat
i
c tow the
FSO
/
F
P
SO
and the e
x
port tan
k
er must be
k
ept
i
n
li
ne
.
Vers
i
on
SF
(
BOS-
P
RD-0
7
01.000
5
-
ver
.
C
R
)
. O
r
i
g
i
na
l D
ate
:
3
1
/
12
/
201
5
.
Vers
i
on
D
ate
: N
/A
.
Va
li
d
vers
i
on
on
l
y on QM
S
s
i
te
.
Page
57
of
60
Procedure prepared by
: BOS
Head
of
O
perat
i
ons
.
Approved
by
: BOS
Head
of
O
perat
i
ons
.
Va
li
dated by
: BOS
Qua
li
ty
R
epresentat
i
ve
.
633