On 15 Oct 2004 10:12:51 -0700, (Trent D. Sanders)
wrote:

Does anyone know where the LEGAL position of a streaming light is
supposed to be? I've had people tell me "the top of the mast", and
"3/4 of the way up the mast", and "at the lower spreaders".

The light you are asking about is the "steaming" (not streaming) or
masthead light. It has an arc of visibility from dead ahead to two
points (22.5 degrees) abaft the beam on either side - it covers the
same arc as the red and green sidelights.

At the top of my mast [Islander 29'] I have two lights. One is a
white 360 degree light [anchor], and the other is white, but shows
only 180 degrees [?] forward. I assume that the second light is a
streaming light, but wonder if it's "legal" where it's mounted?

The Collision Regulations will describe the required positions of all
navigation lights.

According to the Canadian version of the Coll Regs, on a vessel under
12 metres, the masthead light must be at least 1 metre above the
sidelights.

--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
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Peter,
I have a similar question to that of the original poster. My 32 ft boat was
modified by a previous owner. It has the following lights:

- Masthead Trilight - red/green/white
- Masthead 360 deg white light below tri-light
- Hull mounted conventional running lights red/green/stern white ( I added
these - the originals were not working)

I have read the regulations and find there are several variations. What I
have gathered is that a sailboat under power must display same lights as a
power boat.

In my case, under sail, I have two choices - either use the hull mounted
red/green/stern lights or use the masthead tri-light - both acceptable.

Under power, I do not have the normal steaming light. It seems from the
following quotation that I may be able to use the hull mounted lights plus
the masthead 360 deg light:

"If a power-driven vessel underway is less than 12 m long, it may display,
from sunset to sunrise, an all-round white light and sidelights instead of a
masthead light forward, sidelights, and a stern light. The all-round light
must be higher than the sidelights."

I would sort of have this, but from the stern there would be two white
lights showing, one low and one high.

I read the following in the international colregs:

"the masthead light or all-round white light on a power-driven vessel of
less than 12 meters in length may be displaced from the fore and aft
centerline of the vessel if centerline fitting is not practicable, provided
the sidelights are combined in one lantern which shall be carried on the
fore and aft centerline of the vessel or located as nearly as practicable in
the same fore and aft line as the masthead light or all-round white light."

This would tend to say that the combined masthead trilight plus all round
light might also be acceptable.

I could add the conventional mast mounted steaming light, but this means
adding wiring and switches. Question is, do I need to do it!

Graham






"Peter Bennett" wrote

The light you are asking about is the "steaming" (not streaming) or
masthead light. It has an arc of visibility from dead ahead to two
points (22.5 degrees) abaft the beam on either side - it covers the
same arc as the red and green sidelights.


The Collision Regulations will describe the required positions of all
navigation lights.

According to the Canadian version of the Coll Regs, on a vessel under
12 metres, the masthead light must be at least 1 metre above the
sidelights.

--
Peter Bennett, VE7CEI

Subject: Sailboat "streaming light" question
From: "Windjammer"
Peter,
I have a similar question to that of the original poster. My 32 ft boat was
modified by a previous owner. It has the following lights:

- Masthead Trilight - red/green/white
- Masthead 360 deg white light below tri-light
- Hull mounted conventional running lights red/green/stern white ( I added
these - the originals were not working)

I have read the regulations and find there are several variations. What I
have gathered is that a sailboat under power must display same lights as a
power boat.

Since under those conditions it IS a powerboat under the Rules.


In my case, under sail, I have two choices - either use the hull mounted
red/green/stern lights or use the masthead tri-light - both acceptable.

True


Under power, I do not have the normal steaming light. It seems from the
following quotation that I may be able to use the hull mounted lights plus
the masthead 360 deg light:

As long as you shut off the hull mounted stern light. (could look like a
Masthead/Range setup).


"If a power-driven vessel underway is less than 12 m long, it may display,
from sunset to sunrise, an all-round white light and sidelights instead of a
masthead light forward, sidelights, and a stern light. The all-round light
must be higher than the sidelights."

I would sort of have this, but from the stern there would be two white
lights showing, one low and one high.

Again, you would need to shut the lower one off.


I read the following in the international colregs:

"the masthead light or all-round white light on a power-driven vessel of
less than 12 meters in length may be displaced from the fore and aft
centerline of the vessel if centerline fitting is not practicable, provided
the sidelights are combined in one lantern which shall be carried on the
fore and aft centerline of the vessel or located as nearly as practicable in
the same fore and aft line as the masthead light or all-round white light."

This would tend to say that the combined masthead trilight plus all round
light might also be acceptable.

Definitely not. This is talking about small outboards where the motor, etc. may
get in the way of a center mounting.


I could add the conventional mast mounted steaming light, but this means
adding wiring and switches. Question is, do I need to do it!

Looks like all you need is a seperate switch on your hull stern light.

Shen

Just a few notes on terminology he
A masthead is the forward portion of the mast, not the mast-top which is
the top.
Therefore, it is impossible to have a 360 masthead light in a single
light...
The term steaming light has been substituted many times to try to
eliminate the confusion
associated with the "mast-head" light.

--
Cheers,
Jeffrey Nelson
Muir Caileag
C&C 30
"Windjammer" wrote in message
...
Peter,
I have a similar question to that of the original poster. My 32 ft boat
was
modified by a previous owner. It has the following lights:

- Masthead Trilight - red/green/white
- Masthead 360 deg white light below tri-light
- Hull mounted conventional running lights red/green/stern white ( I added
these - the originals were not working)

I have read the regulations and find there are several variations. What I
have gathered is that a sailboat under power must display same lights as a
power boat.

In my case, under sail, I have two choices - either use the hull mounted
red/green/stern lights or use the masthead tri-light - both acceptable.

Under power, I do not have the normal steaming light. It seems from the
following quotation that I may be able to use the hull mounted lights plus
the masthead 360 deg light:

"If a power-driven vessel underway is less than 12 m long, it may display,
from sunset to sunrise, an all-round white light and sidelights instead of
a
masthead light forward, sidelights, and a stern light. The all-round light
must be higher than the sidelights."

I would sort of have this, but from the stern there would be two white
lights showing, one low and one high.

I read the following in the international colregs:

"the masthead light or all-round white light on a power-driven vessel of
less than 12 meters in length may be displaced from the fore and aft
centerline of the vessel if centerline fitting is not practicable,
provided
the sidelights are combined in one lantern which shall be carried on the
fore and aft centerline of the vessel or located as nearly as practicable
in
the same fore and aft line as the masthead light or all-round white
light."

This would tend to say that the combined masthead trilight plus all round
light might also be acceptable.

I could add the conventional mast mounted steaming light, but this means
adding wiring and switches. Question is, do I need to do it!

Graham






"Peter Bennett" wrote

The light you are asking about is the "steaming" (not streaming) or
masthead light. It has an arc of visibility from dead ahead to two
points (22.5 degrees) abaft the beam on either side - it covers the
same arc as the red and green sidelights.


The Collision Regulations will describe the required positions of all
navigation lights.

According to the Canadian version of the Coll Regs, on a vessel under
12 metres, the masthead light must be at least 1 metre above the
sidelights.

--
Peter Bennett, VE7CEI

DARat wrote:
Just a few notes on terminology he
A masthead is the forward portion of the mast, not the mast-top which is
the top.
Therefore, it is impossible to have a 360 masthead light in a single
light...
The term steaming light has been substituted many times to try to
eliminate the confusion
associated with the "mast-head" light.


Although I see what you're getting at here, I'm going to disagree a bit.
"Masthead" refers to the arc of visibility more than it's location (on
the mast-top or forward portion of the mast) since it can be located on
top of a mast, pole ....
You are correct, in that an "all-around" light should not be called a
"masthead", but it's because of it's 360 deg arc of visibility.
It's also possible to refer to that portion of the arc of a 360 deg
light which encompasses 225 deg (rt ahead to 2 pts abaft, either side)
as the "masthead" portion of that light.
The "steaming" light refers to the masthead light, but in some boats it
can also refer to the 360 deg light.
My point here, is that there are a number of ways to address these
terms, and it's more important that two people in a discussion
understand the possibilities and settle on which terms are being used.

otn

The term steaming light has been substituted many times to try to
eliminate the confusion
associated with the "mast-head" light.


Although I see what you're getting at here, I'm going to disagree a bit.
"Masthead" refers to the arc of visibility more than it's location (on
the mast-top or forward portion of the mast) since it can be located on
top of a mast, pole ....
You are correct, in that an "all-around" light should not be called a
"masthead", but it's because of it's 360 deg arc of visibility.
It's also possible to refer to that portion of the arc of a 360 deg
light which encompasses 225 deg (rt ahead to 2 pts abaft, either side)
as the "masthead" portion of that light.
The "steaming" light refers to the masthead light, but in some boats it
can also refer to the 360 deg light.

I believe that in Canada for a boat under 12m(?) that the steaming light and
stern light must separate lights but for boats under 12 m there can be a
single 360 degree light. This has resulted in many power boats being built
with a 360 degree anchor light at the top of the metal mast and a steaming
light on the front side of the mast and a stern light on the rear side just
below it. I do not believe that the lower two would appear any different the
single anchor light from a distance but one is legal and one is not.

RW

On Thu, 21 Oct 2004 16:17:18 -0400, "Rob" wrote:



I believe that in Canada for a boat under 12m(?) that the steaming light and
stern light must separate lights but for boats under 12 m there can be a
single 360 degree light. This has resulted in many power boats being built
with a 360 degree anchor light at the top of the metal mast and a steaming
light on the front side of the mast and a stern light on the rear side just
below it. I do not believe that the lower two would appear any different the
single anchor light from a distance but one is legal and one is not.

For what it's worth: My boat's about 10 meters in length, and I use
the stern light and the port/starboard bow lights when underway at
night under sail AND the mast-top tricolour. I believe I could use
either, legally.

When I motor at night, I use the steaming light at the mast front just
beneath the spreaders, about four metres (13 feet or so) off the deck.
I customarily turn OFF the masthead light to reinforce my "powered"
status and just use the hull lights.

I have a separate, quite bright white 360 degree anchor light atop my
mast top tricolour, which I use when anchored at night, naturally. In
a pinch, I suppose it could be an "emergency steaming light", although
I would probably issue a "securite" call on 16 if I was motoring
through traffic with a busted steaming light.

Finally, I carry hurricane lamps that could be used as nav lights.
They are cheap Chinese jobs I use to illuminate the cockpit on social
evenings, but I carry spotlight "cels" in the appropriate colours to
make 'em into legal (excepting the range, maybe) nav lights. If they
fell in the lake, I wouldn't cry.

As the above shows, I believe in at least partial redudancy G.

comments interspersed

rhys wrote:

For what it's worth: My boat's about 10 meters in length, and I use
the stern light and the port/starboard bow lights when underway at
night under sail AND the mast-top tricolour. I believe I could use
either, legally.

Either/Or, but NOT together ( by "port/starboard bow lights", I'm
assuming you mean pt/stbd side lights.)

When I motor at night, I use the steaming light at the mast front just
beneath the spreaders, about four metres (13 feet or so) off the deck.
I customarily turn OFF the masthead light to reinforce my "powered"
status and just use the hull lights.

What you are calling the "steaming" light is also called the "masthead"
light under the rules, so I'm assuming you turn off the tri-color, when
under power, which is correct

I have a separate, quite bright white 360 degree anchor light atop my
mast top tricolour, which I use when anchored at night, naturally. In
a pinch, I suppose it could be an "emergency steaming light", although
I would probably issue a "securite" call on 16 if I was motoring
through traffic with a busted steaming light.

Considering your size, it would be an excellent "optional" masthead
light (turn off stern light) and no "securite" needed.


otn