#### chappy

##### New member

Cheers.

Dave.

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter chappy
- Start date

Cheers.

Dave.

i think 2240 lbs in a ton which is almost exaccerly the same as a tonne. two tons almost exactly.

5600/2240=2.5 Tons DOWN LOAD THIS TO THAT FOR FUTURE REFERENCE

Jim.

5600 pound = 2.8 ton

there is a great conversion site here which will calculate just about anything

http://www.chemie.fu-berlin.de/chemistry/general/units_en.html

[ QUOTE ]

5600 pound = 2.8 ton

[/ QUOTE ]

Only if you're a Yank /forums/images/graemlins/tongue.gif

5600 pound = 2.8 ton

[/ QUOTE ]

Only if you're a Yank /forums/images/graemlins/tongue.gif

ah yes, assumed being a European site they'd be using sensible units!

i was right about the number of pounds, wrong about the division so its 2.5 tons

G

1 metre = 1.0936 yards

1 inch = 2.54 cms

1 ton = 1.01605 metric ton ( or tonne as single word)

1 tonne = 0.984206 ton

1 lb = 0.453592 kg

1 kg = 2.20462 lbs

1 imp gallon = 4.54596 litres

1 litre = 0.219969 imp gallon

The above are exact by definition and as per ASTM - IP Table 1.

Just thought some may like to have them jotted down !!

If you use a Palm PDA - then you can get an excellent conversion program from : www.mattmarsh.net

For PC .... Conversion Plus at www.mrhvac.com which just about covers everything !!

It must be an age thing, i cant believe so much lather and error over a very simple question.Didn't you lot have all these weights and measures beaten into you as children?

And for ten bonus points how many square metres in an acre?

Tonnage has nothing to do with the weight of your boat. It is a measure

of how much wine a vessel can carry.

The word "tun" was originally a size of a cask used to ship wine from

Spain & Portugal to England. In 1347 a tax of 3 shillings per tun was

imposed and this was called "tonnage." A ship's size became known by the

number of casks it could carry, and the word tonnage started being used

to describe a ship's size.

It was found that if you took the length x the breadth x the depth of

the hold under the deck and divided by 100 it was close to the number of

casks. That is where we get the "Measurement ton" of 100 cubic feet per

ton.

There are several kinds of tonnage: The first two are used by the tax

collector. The next two are used by designers. The fifth and sixth are

used by freight salesmen and canal operators and the last one is used by

the USCG for documenting boats.

Gross Tonnage - is the internal volume in cubic feet of the vessel

minus certain spaces above the main or "tonnage" deck, like stacks and

ventilators, which are called "exemptions" .

Net Registered Tonnage - is obtained by deducting from the gross tonnage

the volume of space that can't be used for paying cargo or passengers,

that is to say the space occupied by the engines, the crew's quarter,

the stores, etc.

Displacement Tonnage - is the actual weight of the water "displaced" by

the ship and is usually quoted in long tons of 2240 lbs.

Light Displacement Tonnage - is the weight with nothing in it.

Loaded Displacement Tonnage - is the fully loaded weight to the maximum

and is on her summer draft in salt water.

Deadweight Tonnage - is the difference between Light and Loaded

Displacement Tonnage....the actual carrying capacity of the vessel.

Panama & Suez Canal Tonnages - these are different from the internationally

accepted definitions. There used to be a lot of variations between countries and the canal owners thought they were being conned, so they came up with their own definitions.

Simplified Measurement System ((This applies in the US...I have no idea whether the same calculations are used anywhere else in the world) - The USCG decided that all this was way too much for bureaucrats to deal with for yachts so they came up with their own formula:

Take the horizontal distance between the outboard ends of the boat not

including rudders and bow sprits. Multiply that by the maximum beam outside to outside. Multiply that by the distance from the sheer line not including bulwarks

or cap rails to the outside bottom of the hull not including the keel. Add the volume of the deck house/cabin top. Multiply by .5 for sailboats and .67 for power boats.

Divide by 100.

This will give you the "Gross Tonnage". Net tonnage is 90% of gross for

sailboats and 80% for power boats.

It should be obvious to anyone who's managed to get this far that your boat's "tonnage" no longer has anything to do with anything real; it only exists in the mind of some government bureaucrat.

Excellent summary of "Tonnage" though darling though you missed "Thames Measurement". What's that then clever clogs cos I could not remember the other day when asked......

but..... fill your boat full of wine casks, count them and pay your dues.

then.... fill 100 containers full of more wine casks, stack them 10 high on your deck and you really have fooled the bureaucrats !!

In the Google search box just type what you want; e.g:

how many lbs in a ton

gives the answer: 1 ton=2000 pounds

if you ask:

how many lbs in a tonne

the answer is: 1 tonne=2204.62262 pounds

Its fun seeing just what else it will do. You'd be surprised!!!

Cheers, Jerry

Thought you were a specialist in "dunnage" not tonnage!

Excellent summary of "Tonnage" though darling though you missed "Thames Measurement". What's that then clever clogs cos I could not remember the other day when asked......

[/ QUOTE ]

I wish I could claim credit for the knowledge behind that...but that belongs to a friend named Glenn Ashmore. I was only smart enough to save it after after he'd posted it several years ago.

What's "Thames Measurement?"

Tony C.

- Replies
- 0

- Views
- 159

- Replies
- 14

- Views
- 341

- Replies
- 20

- Views
- 633