A question about boat weight and displacement
 

I am having trouble attempting to determine the weight of a
boat, with limited information about it. The purpose of this
inquiry is to reach a definitive answer to whether or not a
vessel is trailerable, and if so, what sort of vehicle will
be needed to tow it.

I am hoping to be able to reach an educated guess about the
general weight of the vessel, with limited information and
knowledge about the boat. I am not attempting to make any
determination of any specific weight, just a ball-park guess.

Here is the information I have on this vessel:

Hull Material: Wood
LOA: 28'
Beam: 10'-6"
Displacement: 6,075 lbs
Draft: 2'-2"

Is it possible to determine how much this vessel weighs from
this sort of information? If not, what other information would
I need to determine the weight of this vessel, and then to add
in gear, trailer, etc. to determine what vehicle I would need
with which to pull it?

One other question: How does one go about obtaining a trailer
for a boat that does not have one?

Thank you.

---
-
A. Topic Mimara
Unique in the World! You will appreciate!
---


-=-
This message was posted via two or more anonymous remailing services.

A question about boat weight and displacement
 

Just give the DOT a call. They can tell you the bottom line instantly.
10'6" is definately wide for towing, but I don't think it is wider than
a standard tractor-trailer. Non of this has anything to do with
weight and displacement though.

Doug
s/v Callista

wrote in message
...
On 1 Apr 2004 01:27:50 -0000, Ante Topic Mimara
] wrote:

I am having trouble attempting to determine the weight of a
boat, with limited information about it.
[snip]

Here is the information I have on this vessel:

Hull Material: Wood
LOA: 28'
Beam: 10'-6"
Displacement: 6,075 lbs
Draft: 2'-2"

With a beam of 10' 6" won't you will be towing an oversize load which will
require a special permit and special arrangments each time that you tow
this
boat only during daylight hours?

A question about boat weight and displacement
 

Just give the DOT a call. They can tell you the bottom line instantly.
10'6" is definately wide for towing, but I don't think it is wider than
a standard tractor-trailer. Non of this has anything to do with
weight and displacement though.

Doug
s/v Callista

wrote in message
...
On 1 Apr 2004 01:27:50 -0000, Ante Topic Mimara
] wrote:

I am having trouble attempting to determine the weight of a
boat, with limited information about it.
[snip]

Here is the information I have on this vessel:

Hull Material: Wood
LOA: 28'
Beam: 10'-6"
Displacement: 6,075 lbs
Draft: 2'-2"

With a beam of 10' 6" won't you will be towing an oversize load which will
require a special permit and special arrangments each time that you tow
this
boat only during daylight hours?

A question about boat weight and displacement
 

As far as I know displacement = weight. Certainly the weight of the boat will
displace the amount of water with that same weight (hence the term
displacement). That said, for documentation purposes the Coast Guard refers to
a tonnage (don't recall if they call it displacement) that relates only to boat
volume, not the weight.

A question about boat weight and displacement
 

As far as I know displacement = weight. Certainly the weight of the boat will
displace the amount of water with that same weight (hence the term
displacement). That said, for documentation purposes the Coast Guard refers to
a tonnage (don't recall if they call it displacement) that relates only to boat
volume, not the weight.

A question about boat weight and displacement
 

In article 2MRDDW2938077.852662037@anonymous,
Ante Topic Mimara ] wrote:

I am having trouble attempting to determine the weight of a
boat, with limited information about it. snip
Displacement: 6,075 lbs
Draft: 2'-2"

Is it possible to determine how much this vessel weighs from
this sort of information?

As it happens, we're about 1000# heavier and about the same size, though
taller. A couple of Xan's sisters are hauled on trailers, but not often.
Pretty much one round trip a year.

Expect your weight and displacement to be roughly equivalent. Add a
trailor and gear you're in the 7-8000# range, possibly higher. You're
talking a pretty good-sized tow vehicle and a fairly expensive trailer
unless you can adapt a used one. [If you have a cradle, it can be
secured to a flat bed, BTW.] As I recall, I was told a 150 with a tow
package can handle it in a pinch, but a 250 is better.

Splashing and retrieving the boat in can be a hassle, but you might be
able to float it off and on at a good ramp. Otherwise, you'll need a
hoist/lift. If you have a wooden mast, add the use of a crane.

All these things cost. When I ran the numbers, I found I could pay a
professional to haul it back and forth each season for years and years
before matching the initial outlay on the towing equipment. Was even
cheaper to let the marina haul and store.

--
Jere Lull
Xan-a-Deux ('73 Tanzer 28 #4 out of Tolchester, MD)
Xan's Pages: http://members.dca.net/jerelull/X-Main.html
Our BVI FAQs (290+ pics) http://homepage.mac.com/jerelull/BVI/

A question about boat weight and displacement
 

In article 2MRDDW2938077.852662037@anonymous,
Ante Topic Mimara ] wrote:

I am having trouble attempting to determine the weight of a
boat, with limited information about it. snip
Displacement: 6,075 lbs
Draft: 2'-2"

Is it possible to determine how much this vessel weighs from
this sort of information?

As it happens, we're about 1000# heavier and about the same size, though
taller. A couple of Xan's sisters are hauled on trailers, but not often.
Pretty much one round trip a year.

Expect your weight and displacement to be roughly equivalent. Add a
trailor and gear you're in the 7-8000# range, possibly higher. You're
talking a pretty good-sized tow vehicle and a fairly expensive trailer
unless you can adapt a used one. [If you have a cradle, it can be
secured to a flat bed, BTW.] As I recall, I was told a 150 with a tow
package can handle it in a pinch, but a 250 is better.

Splashing and retrieving the boat in can be a hassle, but you might be
able to float it off and on at a good ramp. Otherwise, you'll need a
hoist/lift. If you have a wooden mast, add the use of a crane.

All these things cost. When I ran the numbers, I found I could pay a
professional to haul it back and forth each season for years and years
before matching the initial outlay on the towing equipment. Was even
cheaper to let the marina haul and store.

--
Jere Lull
Xan-a-Deux ('73 Tanzer 28 #4 out of Tolchester, MD)
Xan's Pages: http://members.dca.net/jerelull/X-Main.html
Our BVI FAQs (290+ pics) http://homepage.mac.com/jerelull/BVI/

A question about boat weight and displacement
 

As far as I know displacement = weight. Certainly the weight of the boat
will
displace the amount of water with that same weight (hence the term
displacement). That said, for documentation purposes the Coast Guard refers
to
a tonnage (don't recall if they call it displacement) that relates only to
boat
volume, not the weight.

Although not as common as a reference to cubic volume, calculating the weight
of a vessel is an uncommon but still correct use for the term tonnage.

When speaking of volume, gross tonnage is the total amount of space contained
within the hull, divided into 100 cubic foot portions. Net tonnage is the total
volume, less the space taken up by engines, generators, fuel tanks, etc.

A boat with 1000 cubic feet of open area where cargo could, theoretically, be
carried
would be rated at 10 net tons. Would have nothing to do with that vessel
weighing 20,000 pounds.......which unless by sheer
happenstance it probably would not.

Then it gets a bit trickier yet. In many cases a "ton" refers to a "long ton"
of 2240 pounds.

Undoubtedly some young woman once who got pretty drunk, was slurring her
speech, and started fantasizing about looking for man who was a good kisser
with a "long ton"......
have to wonder if she would have thought a long ton was so desirable if it came
attached to a guy who weighed 2240 pounds. :-)

A question about boat weight and displacement
 

As far as I know displacement = weight. Certainly the weight of the boat
will
displace the amount of water with that same weight (hence the term
displacement). That said, for documentation purposes the Coast Guard refers
to
a tonnage (don't recall if they call it displacement) that relates only to
boat
volume, not the weight.

Although not as common as a reference to cubic volume, calculating the weight
of a vessel is an uncommon but still correct use for the term tonnage.

When speaking of volume, gross tonnage is the total amount of space contained
within the hull, divided into 100 cubic foot portions. Net tonnage is the total
volume, less the space taken up by engines, generators, fuel tanks, etc.

A boat with 1000 cubic feet of open area where cargo could, theoretically, be
carried
would be rated at 10 net tons. Would have nothing to do with that vessel
weighing 20,000 pounds.......which unless by sheer
happenstance it probably would not.

Then it gets a bit trickier yet. In many cases a "ton" refers to a "long ton"
of 2240 pounds.

Undoubtedly some young woman once who got pretty drunk, was slurring her
speech, and started fantasizing about looking for man who was a good kisser
with a "long ton"......
have to wonder if she would have thought a long ton was so desirable if it came
attached to a guy who weighed 2240 pounds. :-)

A question about boat weight and displacement