nt
r
• Boatin
Safet
4.1
b
1-3 de
rees,
ou should then see onl
one li
ht. If
ou
still see two li
hts, an approachin
vessel won
t be able
to tell which direction
ou are
oin
When boatin
at ni
ht, remember the followin
: “When
two li
hts
ou see ahead, turn
our helm and show
our
r
.
.5.4 Sound Si
nalin
Devic
Your boat is
rovided with a horn which conforms with
.
.
oast
uard requirements
or boats o
this size. All
lass A boats are recommended to carr
a hand, mouth,
r w
st
e, as we
as a
ower o
erate
orn.
e
ev
ce
should be used to promote sa
e passin
, as well as a
warnin
to other vessels in
o
, or con
ined areas, or as
a si
nal to operators of locks or drawbrid
es. Followin
are standard whistle si
nals
ne Prolon
ed Blas
arnin
Si
nal
ne
hort Blas
Pass on m
port sid
Two
hort Blasts Pass on m
starboard sid
Three
hort Blasts En
ines in Revers
iv
r M
r
Bl
t
Dan
er Si
nal
The arc o
the li
hts and color allows
ou to determine the
direction a vessel is movin
. How
ood are
our li
hts
ou s
ou
test t
em to see
ow v
s
e
ou m
t
e
at ni
ht. Whether on a trailer or at the marina, switch
n
our li
hts and see how well the
can be seen. Walk
awa
from the boat or row awa
, if
ou are at anchor or
at a moorin
, and see how visible the li
hts are as
ou
move
urther awa
. How eas
are the
to see a
ainst the
back
round of li
hts on shore?
Let’s sa
that
our stern li
ht,
or some reason, can onl
be seen
or
mile. You are underwa
at 8 knots and a
lar
e ship is approachin
at 15 knots. The ship is onl
4
minutes awa
rom collision with
ou. B
the time the ship
mi
ht” see
ou, identi
the li
ht and decide on the reac-
t
on t
at s
ou
e ta
en,
t
s too
ate.
s
p trave
n
at
5 knots ma
take miles to stop. Look at the stern li
ht
a
ain, as
ou move
rom the stern toward the bow. Does
the stern li
ht “disappear” as the sideli
ht “appears”?
The stern li
ht should disappear and sideli
ht appear at
22.5 de
rees aba
t the beam. I
ou don’t see the
reen
star
oar
s
e
t or t
e re
port s
e
t w
en t
e stern
li
ht disappears, there is a problem with the arc o
one or
all of these li
hts. This means that if another boat were
approac
n
ou at t
e an
e w
ere no
ts are seen,
th
r
i
in
r
ri
k
lli
i
n.
ou s
ou
a
so c
ec
to ma
e sure t
at
our mast
ea
li
ht disappears at the same time each sideli
ht disap-
pears and the
both disappear when the stern li
ht
a
ears.
heck
our sideli
hts from dead ahead. You should see
ot
re
an
reen.
owever,
mov
n
towar
one s
e
t
ts Less than 12 meters
39
t.
12
39
t.
meters to less
than 20
65
t.
meters
w
Thi
in
l
il-
n
vesse
s
under power
n
m
t
r
a
n
hite Masthead Li
h
2 NM
3.7 km
see not
3 NM
5.6 km
ideli
hts or combination li
hts 1 NM
1.9 km
2 NM
3.7 km
stern
2 NM
3.7 km
see not
2 NM
3.7 km
ail
ailin
V
l
n
r
l
n
ideli
hts or combination
i
hts
1 NM
1.9 km
2 NM
3.7 km
sternli
h
2 NM
3.7 km
see not
2 NM
3.7 km
Fi
. 4.8