Sound and Light Signals Rules 32, 33, 34, 35, 35, 37, and 38 Flashcards
Seaplanes on the water shall attempt to
comply with vessel lighting if possible.
Sea planes are not allowed to display
the yellow flashing light authorized for hovercrafts and hydrofoils.
WIGS are not
sea planes
Whistle means
any sound producing device that meets the specifications established in the annex to the rules. Lips are not included.
A short blast by whistle (or flash of a light)
is of one second duration.
A prolonged blast lasts
four to six seconds (an average of 5 seconds).
There is no ___ blast in the Rules of the Road
Long
Vessels 12 meters or more require
a whistle and a bell. There may be changes under international rules, however inland says you still need that bell between 12 and 20 meters.
Vessels 100 meters or more require, in addition to the bell
a gong.
At what vessel size (less than ___) is a whistle and bell not required?
12 meters, but is still must have equipment or SOME OTHER
RULE 33
EQUIPMENT RULE
Rule # 34
ACTION & WARNING SIGNALS
When vessels are in sight of one another, a power driven vessel underway, when maneuvering as required by the International Rules, shall indicate that action by signaling: One short blast
I am altering my course to starboard
When vessels are in sight of one another, a power driven vessel underway, when maneuvering as required by the International Rules, shall indicate that action by signaling: Two short blasts.
“I am altering my course to port”
When vessels are in sight of one another, a power driven vessel underway, when maneuvering as required by the International Rules, shall indicate that action by signaling: Three short blasts meaning
“I am operating astern propulsion” my props are spinning in reverse
In the international rules, one does not answer
action signals. Since one or two short blasts in International Rules indicates a course change, it is inappropriate for a stand-on vessel in an overtaking or crossing situation to signal.
The prolonged blast around an obstruction answered by any vessel around the obstruction is not
an answer to an action signal, but an acknowledgment that someone is around the bend.
Spin the wheel
Give the signal
to keep blasts straight
put one dot on the right hand, two on the left and three on your butt!
When vessels in sight of one another are approaching each other and the actions or intentions are not understood, or one feels that the other is not taking proper action to avoid collision, the vessel in doubt shall give
5 OR MORE short blasts on the whistle. Also note that it says vessels in sight of each other will give action signals including the danger/doubt signal. The point being that one does not use the danger/doubt signal in restricted visibility.
Between each action signal there should be about ______ so they do not run together. They are only to be used when the vessels are within visual contact.
10 seconds
Under International Rules, if in a narrow channel or fairway, when overtaking can take place ONLY if the vessel to be overtaken HAS TO TAKE ACTION TO PERMIT SAFE PASSING, the vessel intending to overtake shall indicate her intention by sounding the appropriate whistle signal.
Prolonged-Prolonged-Short to mean:
“I intend to overtake you on your starboard side.”
Under International Rules, if in a narrow channel or fairway, when overtaking can take place ONLY if the vessel to be overtaken HAS TO TAKE ACTION TO PERMIT SAFE PASSING, the vessel intending to overtake shall indicate her intention by sounding the appropriate whistle signal.
Prolonged-Prolonged-Short-Short to mean:
“I intend to overtake you on your portside”
Under International Rules, if in a narrow channel or fairway, when overtaking can take place ONLY if the vessel to be overtaken HAS TO TAKE ACTION TO PERMIT SAFE PASSING, the vessel intending to overtake shall indicate her intention by sounding the appropriate whistle signal.
The vessel to be overtaken shall, if in agreement, sound the appropriate signal. That signal is:
“Prolonged-Short-Prolonged-Short “
This is Morse Code for “C” or Charlie. If in doubt or refusing the request of the overtaking vessel, the vessel being overtaken may sound the danger-doubt signal of 5 or more short blasts.
Action signals, those indicating turning or backing or danger/doubt, shall only be used when in visual sight of other vessels.
All underway restricted visibility signals are sounded at intervals not longer than
2 minutes.
Not underway situations, such as anchored and aground, have a maximum
interval of 1 minute.
Powerboats underway/making way, sound
one prolonged. (Assume you are busy at the wheel and only have time to make one signal every 2 minutes.)
A powerboat underway/not making way (but not broken down)
sound two prolonged blasts
(indicating that you have time for a cup of coffee and time to make 2 signals every 2 minutes.)
NUC, RAM, CBD, FISHING, TRAWLING, SAILING, TOWING OF ALL TYPES, ALL SOUND:
One Prolonged + 2 Short
A power boat underway making either one or two prolonged blasts, upon losing power
, immediately switches to NUC fog signals.
Vessels being towed shall signal
one prolonged + three short. This is mandatory if the towed vessel manned, and the signal is sounded right after the signal by the towing vessel. In a string of towed vessels, only the last vessel (if manned) will sound signals.
Not underway situations, such as anchored and aground, have a maximum interval
of 1 minute.
Anchored vessels, both power and sail,
ring the bell rapidly for 5 seconds each minute.
Anchored vessels of 100m+
ring the bell rapidly for 5 seconds each minute, and add another five seconds of rapid ringing on a gong at the stern of the vessel
You hear the gong, she is long
If an anchored vessel while ringing the bell senses (radar/hearing) another vessel
approaching and wants something more substantial (louder) to warn away the
approaching vessel,
she may sound Short-Prolonged-Short on the whistle.
S - P - S = Ship’s Position Stationary
Vessel aground uses the same bell and/or gong signals as an anchored vessel does (5 seconds rapid ringing of the bell), plus
three distinct raps on the bell before and after the rapid ringing of the bell. The three strokes means “I AM AGROUND”
An optional identity signal for a pilot boat that may be given IN ADDITION to the normal powerboat fog signal is
4 short blasts.
To attract the attention of another vessel, but not a distress signal, one can
make signals both light and sound so that they cannot be mistaken for other signals. You have to be a little creative here. You may also use your spotlight to attract attention, as long as you don’t embarrass (blind) the other vessel’s operator.
