Determining the length of a boat
 

I am trying to find out how the length of a boat is determined for
registering. Is it from the bow to the stern including the pulpit and
the swim platform? What if the swim platform is not "fixed" (moves up
and down) to the hull. This is for Canadian Waters

Hi;

It is what form 4A says. I've just registered my boat in Toronto

Adam

***************

Length overall (LOA) is the length of a ship in metres from the fore part of
the

uppermost end of the stem to the aft side of the aftermost permanent
structure

of the ship, not including guards or rubbing strakes, spars, platforms,
outboard

motors, Z-drives, jet drives, or transom-hung rudders, but is to include any

additional enclosed hull volume that is to be added to the hull in the form
of

detachable or fixed volumes such as blisters, sponsons, bolted stern

appendages, etc. (see figure below)

******************

"The "Don"" wrote in message
...
I am trying to find out how the length of a boat is determined for
registering. Is it from the bow to the stern including the pulpit and
the swim platform? What if the swim platform is not "fixed" (moves up
and down) to the hull. This is for Canadian Waters

That's a bit different from the US Coast Guard definition. Here, (actual
wording is mine...I don't have the form in front of me) the LOA is
measured in feet, and is measured over the centerline from the foremost
part of the hull (which would not include anything integral to the
deck), excluding any bow pulpits, bumpkins or other appendages, but
INcluding rub rails...to aftmost part of the hull, excluding any motors,
mounting brackets, davits or other appendages attached to the hull. That
would exclude any bolted on swim platform, but would include swim
platforms that are an integral part of the hull mold.

So technically the same boat could be considered to be 2-3' longer in
Canada than in the US.

None of the above applies to harbor masters' definition of length...they
include everything that occupies space.

Peggie


Adam wrote:
Hi;

It is what form 4A says. I've just registered my boat in Toronto

Adam

***************

Length overall (LOA) is the length of a ship in metres from the fore part of
the

uppermost end of the stem to the aft side of the aftermost permanent
structure

of the ship, not including guards or rubbing strakes, spars, platforms,
outboard

motors, Z-drives, jet drives, or transom-hung rudders, but is to include any

additional enclosed hull volume that is to be added to the hull in the form
of

detachable or fixed volumes such as blisters, sponsons, bolted stern

appendages, etc. (see figure below)

******************

"The "Don"" wrote in message
...

I am trying to find out how the length of a boat is determined for
registering. Is it from the bow to the stern including the pulpit and
the swim platform? What if the swim platform is not "fixed" (moves up
and down) to the hull. This is for Canadian Waters





--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://69.20.93.241/store/customer/p...40&cat=&page=1
http://shop.sailboatowners.com/detai...=400&group=327

Thanks Adam,

I found the document you listed below. So, The way I read this.. one
would messure from the bow to the end of the swim platform.......

Thanks again Adam.

On Thu, 2 Sep 2004 14:03:07 -0400, "Adam" wrote:

Hi;

It is what form 4A says. I've just registered my boat in Toronto

Adam

***************

Length overall (LOA) is the length of a ship in metres from the fore part of
the

uppermost end of the stem to the aft side of the aftermost permanent
structure

of the ship, not including guards or rubbing strakes, spars, platforms,
outboard

motors, Z-drives, jet drives, or transom-hung rudders, but is to include any

additional enclosed hull volume that is to be added to the hull in the form
of

detachable or fixed volumes such as blisters, sponsons, bolted stern

appendages, etc. (see figure below)

******************

"The "Don"" wrote in message
.. .
I am trying to find out how the length of a boat is determined for
registering. Is it from the bow to the stern including the pulpit and
the swim platform? What if the swim platform is not "fixed" (moves up
and down) to the hull. This is for Canadian Waters

That's how I understand it. The one bugaboo around here (Oregon) is the
width ...if a cop pulls you over, they drop a plumb bob from the outermost
'anything' down each side of the boat and measure the distance between the
points. This is for the purpose of ticketing you for towing something wider
than allowed without a proper permit. Licensing and dock rentals appear to
use the USCG rules for length.

Brian D


"Peggie Hall" wrote in message
...
That's a bit different from the US Coast Guard definition. Here, (actual
wording is mine...I don't have the form in front of me) the LOA is
measured in feet, and is measured over the centerline from the foremost
part of the hull (which would not include anything integral to the
deck), excluding any bow pulpits, bumpkins or other appendages, but
INcluding rub rails...to aftmost part of the hull, excluding any motors,
mounting brackets, davits or other appendages attached to the hull. That
would exclude any bolted on swim platform, but would include swim
platforms that are an integral part of the hull mold.

So technically the same boat could be considered to be 2-3' longer in
Canada than in the US.

None of the above applies to harbor masters' definition of length...they
include everything that occupies space.

Peggie


Adam wrote:
Hi;

It is what form 4A says. I've just registered my boat in Toronto

Adam

***************

Length overall (LOA) is the length of a ship in metres from the fore
part of
the

uppermost end of the stem to the aft side of the aftermost permanent
structure

of the ship, not including guards or rubbing strakes, spars, platforms,
outboard

motors, Z-drives, jet drives, or transom-hung rudders, but is to include
any

additional enclosed hull volume that is to be added to the hull in the
form
of

detachable or fixed volumes such as blisters, sponsons, bolted stern

appendages, etc. (see figure below)

******************

"The "Don"" wrote in message
...

I am trying to find out how the length of a boat is determined for
registering. Is it from the bow to the stern including the pulpit and
the swim platform? What if the swim platform is not "fixed" (moves up
and down) to the hull. This is for Canadian Waters





--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://69.20.93.241/store/customer/p...40&cat=&page=1
http://shop.sailboatowners.com/detai...=400&group=327

"The \"Don\"" wrote in message . ..
I am trying to find out how the length of a boat is determined for
registering. Is it from the bow to the stern including the pulpit and
the swim platform? What if the swim platform is not "fixed" (moves up
and down) to the hull. This is for Canadian Waters

You could also measure it by the International Tonnage Convention of
1969.

Basically the greater length of either stem to centre of ruddder stock
or 96% of the waterline length at the waterline at 85% of the least
molded depth. Means with a vertical stem and Titanic style cruiser
stern a vessel can be longer than 24m overall, but less than 24m under
this convention. In fact one can get away with about an extra 90cm of
boat length.