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 Vehicle Weights and Loads

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Jas
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PostSubject: Vehicle Weights and Loads   Mon May 30, 2011 4:11 am


A Few things that I'm interested in and might prove helpful to others.

Realising that with overland travel you need to take a different school of though to a vehicle than say a pay and play, winch challenge buggy, do you the owners look at the vehicles weight carrying capability's as one of the most important things?

I bought my truck because it suited my needs.

As for the weight carrying capabilities of my truck in the photo below Hyundai didn't put a description next to the figure in KG. But I am assuming that the Largest figure is the total vehicle GVW.



Does your tyre width choice made a difference when dealing with this much weight? The wider the better for floatation, or thinner to cut through the terrain? Would you have to chose your tyre size based on load rating? Knowing that some thinner tyres cant support as much weight as a wider tyre.

I'm interested In the effect the extra weight can have on the vehicle off road and any accessories you do decide to use. (The most I've had is around 300kg in the boot when in 4wd)
Do you need heavier duty rope, winches, sand ladders?

Gemini also talked about weigh bridges, has anyone had any problems with this? Requirements needed to be met, fines, permits when overland, will the standard UK road Licence cover this Ok Overland even in Europe?

Is there usually a limit posted on trains (Eurostar) or ferry's for vehicle weight or height? If either or both are to much do you need to buy a different ticket or perhaps even take a freight train or ferry, is this information easily accessible of does it require some research?

And finally Roof racks. Obviously its best to as much weight low in the vehicle over the axles, but is there a stamped limit to what your standard or added roof rack can carry? And does the extra weight & items cause problems when cornering or on a angle off road etc.

Jas

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Last edited by Terracan Jas on Sun Oct 23, 2011 6:27 am; edited 1 time in total
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onlyMark
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PostSubject: Re: Vehicle Weights and Loads   Mon May 30, 2011 4:48 am

I'd say that the two smaller weights on your plate are the max axle loads. The next highest is the gross weight and the 5 tonne thingy is the max weight with trailer, not the max weight of just the vehicle. I can't imagine it being that high at all.
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gemini
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PostSubject: Re: Vehicle Weights and Loads   Mon May 30, 2011 5:20 am

Well Jas if you can't work them out let's hope a copper and VOSA are the same....

I have in my posession a magazine Caravan and Outdoor a ZA mag. In the back there's a table of weights...There's two Terracan models listed. Which is yours please and I'll see what the mag says. Sherbert they both read the same...
All that's there is the Tare Weight given as 2155kg
Then max recomended tow weight 2800kg
Then the GVM of caravan at 1400kg.....

Have a read of this post. You will get very confused but you will see what I man about other countries.

http://www.4x4community.co.za/forum/showthread.php?t=84121

Roof racks. Now I say a Jap car in Princ Albert ZA and the max roof weight was on the roof bars
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PostSubject: Re: Vehicle Weights and Loads   Mon May 30, 2011 5:32 am

Weight

I can only talk Defender here with a pointer or two on the Discovery.

Defender roof weight is 75kg. Now Land Rover produce a paper back called "Working in the Wild. A Manual for Africa" In that book the 75kg limit is there BUT also "FOR OVERLANDING" 150kg is allowed. Go figure doh Also it states that 2" between the top of the front axle and the bump stop, the vehicle isn't overloaded. At the rear the measurement is 3". Both for the Discovery and Defender
The Discovery has a roof weight of 50kg.

Both of those vehicles you can overload and not be noticed IF and only IF you get the weight between the wheels and over the rear axle. Filling the "boot" behind the axle with heavy stuff will give a nose up attitude and you'll be noticed by Mr Plod.

Defender roof rack. Place on the ground and lift one corner. The other three corners should stay on the ground. That's how much a Defender flexes. Be wary of any bars that sit the length of the gutter as you could open the roof at the hidden seam three inches behind the windscreen

While we're on about weight. Jerry cans. You are all aware that Jerry cans are not allowed empty or full on european ferries. I got pulled crossing to Mull two years ago. So make sure they're well hidden.

As for fines.
Yes it does happen Sam got pulled and fined for being over the rear axle weight coming back from Morroco last year.

Oops. I'me getting bad mannerd in my old age

mike
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PostSubject: Re: Vehicle Weights and Loads   Mon May 30, 2011 5:43 am

Jas can I as heck work that plate out. Only a Land Rover, a Jeep or a Hummer can tow 3500kg. So where does the 5300kg come in ?

the 1300 kg I think is front axle
1600kg rear axle but again I would have expected those two added together to make the GVW up.
Nothing makes sense.

mike
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Jas
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PostSubject: Re: Vehicle Weights and Loads   Mon May 30, 2011 6:11 am

Gota love those Koreans....


If given it some thought!

The Terracan tow limit is 2800kg for the auto and 3000kg for the manual if Memory is correct so...

If we do: 5390-2590=2800kg.

So the 2590kg is cerb weight or something and the towing weight is 2800kg, so the 5390kg must be total weight. And I would agree with you about the axles!

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PostSubject: Re: Vehicle Weights and Loads   Mon May 30, 2011 6:14 am

Terracan Jas wrote:
Gota love those Koreans....


If given it some thought!

The Terracan tow limit is 2800kg for the auto and 3000kg for the manual if Memory is correct so...

If we do: 5390-2590=2800kg.

So the 2590kg is cerb weight or something and the towing weight is 2800kg, so the 5390kg must be total weight. And I would agree with you about the axles!

Yes I agree with you

Did you read the link I gave ?? Suddenly the ZA people have realised that they can't tow their trailers legally with their Toymotors.

mike
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PostSubject: Re: Vehicle Weights and Loads   Mon May 30, 2011 6:19 am

I did. Gutted for them, cos I've towed with alot of Toyota's and they do the job very well.

It is all very complex, just when you think you have to the hang of it there pops up some new legislation.

Like the time I towed a boat with the Terracan 2 years ago, boat & trailer was around 2200kg, read up on all the law etc with transporting a boat only to get pulled over on the M4 because I didn't fit fluorescent reflective strips/signs on the top rear sides of the boat and on the top of the folded down mast.

Jas

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PostSubject: Re: Vehicle Weights and Loads   Mon May 30, 2011 3:10 pm

I'll drop back in for a more detailed reply as heading away for work in a min - best bet if at all possible id not to run overloaded as once VOSA have you on their radar you'll find they keep looking for you (one reason I don't miss my old job!)

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PostSubject: Re: Vehicle Weights and Loads   Tue May 31, 2011 5:04 am

In simple terms:

The 1300Kg is the maximum front axle loading.
The 1600Kg is the maximum rear axle loading.

The 2590Kg is the maximum vehicle weight, if you deduct the actual vehicle weight of the vehicle from this figure it will leave you with the maximum load weight (cargo, passengers, etc) you can carry.

The 5390Kg is the Maximum Train Weight which is the weight of the vehicle, the load, and any trailer which is being towed.


If we work theoretically, as i do not have the exact figures for your vehicle to hand.

If your vehicles maximum weight is 2590Kg, and its actual wet weight (full tank of fuel, oil, etc) is 1800Kg you can deduct the actual weight from its maximum weight, thus 2590Kg minus 1800Kg = 790Kg.
This means the vehicle can carry 790Kg of passengers and goods without being overloaded, so it gives its maximum cargo weight it can carry which includes passengers.

The rest has already been figured out.
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PostSubject: Re: Vehicle Weights and Loads   Tue May 31, 2011 5:27 am

So why do we have all these figures? quite simply as there are a number of variables to work too, we can look at a few examples.

If we work on the previous theoretical figures and have 790Kg of possible cargo carrying capacity, it allows you to work out how much weight the vehicle can carry under any configuration.
It may be that you have a number of manufacturer fitted accessories which add weight to a vehicle, maybe optional wider tyres which weigh 15Kg more than the standard fitment tyres, cold weather kit which is an additional battery and heaters which add another 35Kg, and climate control instead of the standard air con which adds another 10Kg.

If we add these up we see our 790Kg figure is reduced to 730Kg as we have additional manufacturer fitments which add another 60Kg to our vehicle, so the carrying capacity is reduced to compensate for this additional weight. So what does this mean? if non manufacturer additional fitments are added to the vehicle the combined weight of these reduces the load carrying capacity even more, and each fitment will have its weight printed in the litreature so these can be added up and deducted from the vehicles carrying capacity, if you have added an additional 50Kg with a snorkel, locking rear diff, underbody protection, additional leisure battery and split charging system, you can add the combined additional weight together and deduct it from the vehicles carrying weight.

If we deduct this additional 50Kg from our previous 730Kg it leaves us with a carrying weight of just 680Kg.

This also haves a knock on effect on other areas, this is why the axle loading weights are included, if all this weight was theoretically loaded over the front axle it could exceed its maximum loading, and this is the reason they are stated, it also gives any roadside weight check authority the figures to compare to. If for example you had a fully laden vehicle, you could have the whole vehicle weighed, you may be under the maximum weight, but potentially be overloaded on one of the axles; so prosecution for exceeding axle weight.

Such information is necessary for specialised vehicle converters, and for the authorities, as they will have to work to them, and for private owners to calculate the weight and load of any additional permanent or temporary fixtures to the vehicle to ensure none of the loadings are exceeded.

Just as an aside, more vehicles are weighed by the authorities during the months of July and August when most people are going away on their summer holidays and want to take everything including the kitchen sinks with them. Of the vehicles weighed, around 35% are overweight on at least one of their loadings.
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