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Gross Tonnage

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dcarp...@netrax.net

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Jan 9, 1996, 3:00:00 AM1/9/96
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>What is meant by Gross Tonnage? I think it has more to do with
>the size (volume) of the ship than with its weight. Does anyone
>have a definition?

Gross tonnage is the measure of the interior revenue producing volume of a ship.
This includes cabins and public areas. Not the engine room or crew quarters.
100 cubic feet is one GRT.


Don Carpenter
dcarp...@netrax.net -OR- cru...@cyberia.com
International Tours/Cruise Ahoy

Barbara Arendt

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Jan 9, 1996, 3:00:00 AM1/9/96
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Yes,
It does have to do with volume rather than weight. The definition of
GRT (Gross Registered tonnage) is this-
The figure (70,000) represents the capacity in cubic feet of the spaces
within the hull, and of the enclosed spaces above the deck available
for passengers, crew and cargo, with certain exceptions, divided by
100. Thus, 100 cubic feet of capacity is equal to 1 gross registered
ton. The important thing to look at when deciding on a particular
cruiseship?--passenger ratio numbers. Take the GRT (70,000) and divide
by the number of passengers (2,000) to get the passenger ratio (35).
The larger the number, the more "elbow room" for you!


In <DKxCL...@falcon.daytonoh.attgis.com> John Hoffmaier


<john.ho...@daytonoh.attgis.com> writes:
>
>What is meant by Gross Tonnage? I think it has more to do with
>the size (volume) of the ship than with its weight. Does anyone
>have a definition?
>

--
-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:
Barbara Arendt, ACC
Cruises Inc, Lincoln NE
email: bjcr...@ix.netcom.com
Member ASTA, CLIA, NACOA
"Happiness is a Cruise!"
-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:

John Hoffmaier

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Jan 9, 1996, 3:00:00 AM1/9/96
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har...@clark.net

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Jan 9, 1996, 3:00:00 AM1/9/96
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I believe that the term "deadweight" is used to refer to the actual weight of a vessel,whereas "gross tonnage" or "gross
registered tonnage" refers to a weight calculated by enclosed volume of the vessel. I recall that liners such as the Queen
Mary and Normandie used to vie for publicity by adding a cafe or other public room by enclosing a deck area, thereby
increasing their gross tonnage.

I hope this answer is correct, as I am relying on memory and can't locate a reference book.

John Sabo


Ditt namn skrivs hit

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Jan 10, 1996, 3:00:00 AM1/10/96
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Dear John

According to your definition about "deadweight", the deadweight is the weight
of the maximum cargo, fuel, freshwater etc. a ship is allowed to carry. It has
nothing to do with the weight of the ship itself.

Stefan


Bob Thompson

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Jan 10, 1996, 3:00:00 AM1/10/96
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In article <4cug48$4...@clarknet.clark.net> har...@clark.net writes:

>I believe that the term "deadweight" is used to refer to the actual weight of a
>vessel,whereas "gross tonnage" or "gross

>I recall that liners such as the Queen

>Mary and Normandie used to vie for publicity by adding a cafe or other public
>room by enclosing a deck area, thereby
>increasing their gross tonnage.


>John Sabo

Ships in the North Atlantic trade, such as those cited, had a much higher
proportion of enclosed deck space than those in most other trades. While
"publicity" may have played a part, the route they served was characterized by
weather which made open decks pretty unpleasant places to be, about 11 months
out of a year.

========================================
/bob/
thom...@robin.tezcat.com (Bob Thompson)
=========================================


Warren Gill

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Jan 10, 1996, 3:00:00 AM1/10/96
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thom...@robin.tezcat.com (Bob Thompson) wrote:
>In article <4cug48$4...@clarknet.clark.net> har...@clark.net writes:
>
>>I believe that the term "deadweight" is used to refer to the actual weight of a
>>vessel,whereas "gross tonnage" or "gross
>
I think deadweight tonnage is yet another measure of volume, rather than weight and is the difference in capacity between a loaded a=
nd unloaded ship. 35 cu ft of seawater = one deadweight ton. Displacement tonnage is the actual weight of a ship. From my sources,=
the measure of gross tonnage originates with capacity of ship to carry large casks of wine, known as tuns. One tun = 252 gallons (=
imperial, I think) of wine and size of ships was determined by the volume of tuns that could be carried.


Ditt namn skrivs hit

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Jan 11, 1996, 3:00:00 AM1/11/96
to
Marceline,

Back to the deadweight once again...Im studying maritime economics and in our
litterature the term deadweight is defined as "the maximum allowed weight of
cargo, fuel, freshwater for a ship".

Best regards
Stefan


Marceline Therrien

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Jan 11, 1996, 3:00:00 AM1/11/96
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In article <4d0vri$8...@josie.abo.fi>,
ditt_användar...@abo.fi (Ditt namn skrivs hit) wrote:
:Dear John
:

Stefan,

I think you are confusing deadweight tons and gross registered tons. GRT is a
measure of a ships cargo (or passenger) carrying capacity and DWT is a measure
of the size of the ship itself.


Lyndell (Lynn) Sills

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Jan 12, 1996, 3:00:00 AM1/12/96
to
John Hoffmaier <john.ho...@daytonoh.attgis.com> wrote:

>What is meant by Gross Tonnage? I think it has more to do with
>the size (volume) of the ship than with its weight. Does anyone
>have a definition?

John,
GT is volume and 100 cubit feet = 1 ton

Best Regards,
Lyndell (Lynn) Sills
ly...@cybercomm.net
uww...@prodigy.com
http://www.cybercomm.net/~lynn/
PGP Key Available


Lynn Sills

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Jan 13, 1996, 3:00:00 AM1/13/96
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On Thu, 11 Jan 1996, Marceline Therrien wrote:

> In article <4d0vri$8...@josie.abo.fi>,


> ditt_anv=E4nda...@abo.fi (Ditt namn skrivs hit) wrote:
> :Dear John
> :

> :According to your definition about "deadweight", the deadweight is the w=
eight=20
> :of the maximum cargo, fuel, freshwater etc. a ship is allowed to carry. =
It=20
> has=20
> :nothing to do with the weight of the ship itself.=20
> :
> :Stefan

>=20
> Stefan,
>=20
> I think you are confusing deadweight tons and gross registered tons. GRT =
is a=20
> measure of a ships cargo (or passenger) carrying capacity and DWT is a me=
asure=20


> of the size of the ship itself.

> >=20
Stefen is correct about deadweight tonnage. GRT is the cubic measurement o=
f
a ship with 100 cubic feet =3D 1 GRT.

My Best Regards,

Gerard Foley

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Jan 13, 1996, 3:00:00 AM1/13/96
to
John Hoffmaier (john.ho...@daytonoh.attgis.com) wrote:
: What is meant by Gross Tonnage? I think it has more to do with
: the size (volume) of the ship than with its weight. Does anyone
: have a definition?

The weight of a ship is its displacement.

Gerry


Martti Halminen

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Jan 14, 1996, 3:00:00 AM1/14/96
to
> dcarp...@netrax.net wrote:
>Gross tonnage is the measure of the interior revenue producing volume of a ship.
>This includes cabins and public areas. Not the engine room or crew quarters.
>100 cubic feet is one GRT.

- A little correction: gross tonnage refers to the total volume. Net tonnage
would be closer to what you are talking about.
- Nowadays the measurement rules have changed, and the tonnage values should
actually be dimensionless, i.e. no more "register tons".

Regards,
Martti Halminen <m...@xgw.fi>

Martti Halminen

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Jan 14, 1996, 3:00:00 AM1/14/96
to

somebody wrote:

>I think you are confusing deadweight tons and gross registered tons. GRT is a
>measure of a ships cargo (or passenger) carrying capacity and DWT is a measure

>of the size of the ship itself.

Okay, let's try to clear this a little:
- "register ton" is a measure of volume, used to be equal to 100 cubic feet.
- Gross tonnage is practically the total volume of the ship.
- Net tonnage is approx. the profit-producing volume of the ship:
Gross tonnage minus machinery, crew spaces, bunker tanks, galleys, etc.
These were volume measures. The rest is weight stuff:

- displacement is the total weight of the ship and everything in it at
whatever load situation we are currently handling.
- deadweight is the weight of fuel, cargo, passengers etc. (Yes, passengers
are dead weight, whether they are alive or dead!)
- lightship weight is the weight of the empty ship itself.
So, displacement = lightship weight + deadweight.

(Okay, some minor details omitted. I'm writing this at 0115 am.)


Regards,
Martti Halminen <m...@xgw.fi>

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