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RULE 35:
SOUND SIGNALS IN RESTRICTED VISIBILITY
In or near an area of restricted visibility,
whether by day or night the signals prescribed in this Rule shall
be used as follows:
(a) A power-driven
vessel making way through the water shall sound at intervals
of not more than 2 minutes one prolonged blast.
(b) A power-driven vessel underway
but stopped and making no way through the water shall sound at intervals
of no more than 2 minutes two prolonged blasts in succession with
an interval of about 2 seconds between them.
(c) A vessel not
under command, a vessel restricted
in her ability to maneuver whether underway or at anchor
[Inld], a vessel constrained
by her draft [Intl], a sailing
vessel, a vessel engaged
in fishing whether underway or at anchor [Inld]
and a vessel engaged in towing or pushing another vessel shall,
instead of the signals prescribed in paragraph (a) or (b) of this
Rule, sound at intervals of not more than 2 minutes three blasts
in succession, namely one prolonged followed by two short blasts.
(d) A vessel engaged in
fishing, when at anchor, and a vessel restricted in her ability
to maneuver when carrying out her work at anchor, shall instead
of the signals prescribed in paragraph (g) of this Rule sound the
signal prescribed in paragraph (c) of this Rule. [Intl]
(e/d) A vessel towed or if more than one vessel
is towed the last vessel of the tow, if manned, shall at intervals
of not more than 2 minutes sound four blasts in succession, namely
one prolonged followed by three short blasts. When practicable,
this signal shall be made immediately after the signal made by the
towing vessel.
(f/e) When a pushing vessel and a vessel being pushed
ahead are rigidly connected in a composite unit they shall be regarded
as a power-driven vessel and shall give the signals prescribed in
paragraphs (a) or (b) of this Rule.
(g/f) A vessel at anchor shall at
intervals of not more than 1 minute ring the bell rapidly for about
5 seconds. In a vessel 100 meters or more in length the bell shall
be sounded in the forepart of the vessel and immediately after the
ringing of the bell the gong shall be sounded rapidly for about
5 seconds in the after part of the vessel. A vessel at anchor may
in addition sound three blasts in succession, namely one short,
one long and one short blast, to give warning of her position and
of the possibility of collision to an approaching vessel.
(h/g) A vessel aground shall give
the bell signal and if required the gong signal prescribed in paragraph
[(g) / (f)] of this Rule and shall,
in addition, give three separate and distinct strokes on the bell
immediately before and after the rapid ringing of the bell. A vessel
aground may in addition sound an appropriate whistle signal.
(i/h) A vessel of less
than 12 meters in length
shall not be obliged to give the above mentioned signals but, if
she does not, shall make some other efficient sound signal at intervals
of not more than 2 minutes.
(i) A vessel
of 12 meters or more but less than 20 meters in length shall not
be obliged io give the bell signals prescribed in paragraphs (g)
and (h) of this Rule. However, if she does not, she shall make some
other efficient sound signal at intervals of not more than 2 minutes.
[Intl]
(j/h) A vessel of less
than 12 meters in length
shall not be obliged to give the above mentioned signals but, if
she does not, shall make some other efficient sound signal at intervals
of not more than 2 minutes.
(k/i) A pilotage vessel
when engaged on pilotage duty may in addition to the signals prescribed
in paragraph (a), (b) or [(g) / (f)]
of this Rule sound an identity signal consisting of four short blasts.
(k) The following
vessels shall not be required to sound signals as prescribed in
paragraph (f) of this Rule when anchored in a special anchorage
area designated by the Secretary:
(ii)
a vessel of less than 20 meters in length; and
(iii)
a barge canal boat, scow, or other nondescript craft.
[Inld]
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