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Old 30 April 2008, 06:54   #131
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Being a little paranoid about long drawbars has made me want to go for a trailer long side beams and no or little drawbar, so what sort of options do I have for a 6.2m RIB weighing no more than 1200kg's and keeping with a single axle. I have found a Bramber but is rated at 1100kg's capacity which I think is a little low.

What do you guys think?
Fix the one you've got
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Old 30 April 2008, 07:51   #132
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.....6.2m RIB weighing no more than 1200kg's ...
Are you sure about that? Been on a weighbridge?
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Old 30 April 2008, 13:42   #133
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Are you sure about that? Been on a weighbridge?
Well no I haven't. But it shouldn't be any higher, should it? It is just the payload (RIB) we're talking about here.
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Old 30 April 2008, 14:05   #134
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does that include your console
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Old 30 April 2008, 14:10   #135
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does that include your console
There's always one!
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Old 01 May 2008, 00:49   #136
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So 9 weeks down the road and !
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Old 01 May 2008, 04:49   #137
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andy

would really recommend that you pop to a weighbridge so that you know for sure what the boat and rig are weighing in at, remember hand built! did Mike weight it all? you are making some assumptions here and probably best to check so no surprises.

if finances allow then just get a decent trailer instead of all this dicking around with that item you have, you can then fix it and sell on or straighten and sell on. to me the trailer is so important and "if" the design is not good then what other things are going to crop up in time? make sure you get a trailer with reasonable reserve capacity if the choice presents it self, dont get something on the limits.....weigh your boat then get the appropriate trailer.....wasting time considering a 1100kg trailer if your boat weight is not certain is just silly

all this means lost time boating and there are few enough opportunities in this damn country as it is!

if finances dont allow then i guess you just have to fix it somehow, however if the trailer is modified as you are suggesting or attempting would this affect the insurance?, would it need to be recertified?. I know nothing about this area of things so could not advise.

also, do you know if the wheels, tyres, axles are correctly specd on that trailer?

in summary i suspect you have limited confidence with that trailer so just sell it on and get a better one, the cost to you is the delta between what you sell and what you pay, might not be that bad and save a bit of stress
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Old 01 May 2008, 13:52   #138
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You think it would?

I'd have though that with the extra strength the fabrication offers, that the whole area will be more ridgid once tight and hence less likely to bend or break.
The problem is that your mod is relying on friction to prevent the drawbar moving again. You would need a hell of a lot of force to stop that drawbar moving with your imrovised clamp set up. Like two sides of a triangle, it wont take much weight on the top to get the bottom of the sides to spread, so with this analogy, you can see that only a little force from the bending moment would require a huge amount of grip to stop the bottom of the triangle spreading. You wont be able to overcome that force /problem with a clamp, you would have to drill and make your mod rigid, with the original draw bar. Perhaps some plates welded to your mod, coming up either side of the origal drawbar, bolted through twice, fore and aft would do it, then it would be rigid
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Old 01 May 2008, 15:01   #139
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Well I'm looking at an Indespension super roller coaster or a De Graaff with a 1800kg gross capacity.
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Old 01 May 2008, 15:43   #140
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Well I'm looking at an Indespension super roller coaster or a De Graaff with a 1800kg gross capacity.
mine is 1800kg so enough room in my mind, the sbs is around 400kg
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