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Old 01 October 2012, 04:32   #1
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Getting a boat weighed

I've just bought a boat and want to know what it weighs for transport purposes. Can anyone suggest how I can get this done (in the Southampton area)? Do the majority of cranes have the facility to weigh their loads? Towing the boat to a weigh bridge isn't an option.
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Old 01 October 2012, 04:37   #2
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Tim,

If you search the forum far enough back there is a method using some bathroom scales and some maths. Its in a post I made about 5 yrs ago, and came from an article in PBO so probably refers to that.
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Old 01 October 2012, 04:42   #3
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Not sure how that's going to work! This boat weighs around 4.5 tonnes (we think!)
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Old 01 October 2012, 04:43   #4
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Drivers wharf dry berthing on the itchen can via there Crain. I know this we re engined a vessel and weighed her before and after .
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Old 01 October 2012, 04:46   #5
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Thanks for the tip. Can most cranes do this?
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Old 01 October 2012, 04:51   #6
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If you hire a load cell for the day you place this as a link between the crane hook and the slings.
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Old 01 October 2012, 04:59   #7
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Quote:
Originally Posted by Tim M View Post
Not sure how that's going to work! This boat weighs around 4.5 tonnes (we think!)
It's actually not that mad!

You need to be able to weigh the noseweight of the hitch on the scales then roll the boat back a short distance and re-weigh. Based on a bit of maths comparing the weights and distance you rolled the boat back by you can estimate the mass. I did this on my setup and came to 1700kg. I then went to a weighbridge and it measured 1610kg, so not too far off.
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Old 01 October 2012, 05:31   #8
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It's actually not that mad!

You need to be able to weigh the noseweight of the hitch on the scales then roll the boat back a short distance and re-weigh. Based on a bit of maths comparing the weights and distance you rolled the boat back by you can estimate the mass. I did this on my setup and came to 1700kg. I then went to a weighbridge and it measured 1610kg, so not too far off.
Indeed, although its probably more complex with a twin or triple axle trailer(?), and manhandling 4.5 tonnes back on the trailer might be fun especially if its not got rollers.

However it does provide a possibility without the need to transport it anywhere, which given the boat is 4.5 tonnes is not going to be cheap/legal*. *delete as applicable!
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Old 01 October 2012, 06:53   #9
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Boat is currently on the water with no trailer hence I'm hoping we can just take it somewhere with a crane, get it weighed, job done! Previous owner reckons it weighs 4.5 tonnes, I think less. I'm hoping it will be significantly less so it can be transported on a tri axle trailer. Wishful thinking perhaps!
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Old 01 October 2012, 07:36   #10
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What boat is it Tim?
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