towing capacity

Submitted: Wednesday, Jun 01, 2011 at 16:37
ThreadID: 86685 Views:1687 Replies:4 FollowUps:3
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i have a 5th wheeler that i tow with a mazda bt50 which has a 3000kg towing capacity at tow ball can anyone tell me what it would be at the tow ball over the wheels,is there a formular for calculating this .i was told that it would be 1/3 more
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Reply By: Notso - Wednesday, Jun 01, 2011 at 16:58

Wednesday, Jun 01, 2011 at 16:58
It all depends on the Gross Combination Mass of the vehicle. This is the total combined weight of Vehicle and Trailer that the unit is allowed to weigh.

BT50 GCM
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Follow Up By: Member - wrapf - Wednesday, Jun 01, 2011 at 17:42

Wednesday, Jun 01, 2011 at 17:42
the combined weight is 5.14t the van is 2.8 t and .55t on the hitch do you know how to calculate the capacity from this thanks.
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Reply By: Crackles - Wednesday, Jun 01, 2011 at 17:53

Wednesday, Jun 01, 2011 at 17:53
My understanding is you can tow 3000kg plus the weight on the tow pin as long as it doesn't overload either the Gross Combination Mass (5500kg for Bt) or the Gross Vehicle Mass (3039kg for twin cab manual).
As an example a twin cab Bt (1900kg empty) with 700kg of people, fuel, assesories & luggage could tow a 5th wheeler weighing just 2.9 tonne as long as the a pin weight didn't exceed 400kg.
Lessen the load in the car & you can increase that of the 5th wheeler. At best if the car had two people & a tank of fuel you could tow 3.3 tonne as long as the pin weight was between 300 to 700kg.
This LINK may help.
Cheers Craig.................
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Follow Up By: Member - wrapf - Wednesday, Jun 01, 2011 at 18:11

Wednesday, Jun 01, 2011 at 18:11
thanks for that craig that gives me something to work on now i was in the dark before.
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Reply By: Member - Murray R (VIC) - Wednesday, Jun 01, 2011 at 19:15

Wednesday, Jun 01, 2011 at 19:15
wrapf
Was talking to a bloke over Easter about 5th wheelers and he was saying that if you put the hitch over or in front of the axle that becomes an articulated vehicle and appropriate licence required, but if mounted behind the axle just a car licence is required. Don't know if correct but maybe something to check out

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Follow Up By: Member - wrapf - Wednesday, Jun 01, 2011 at 19:34

Wednesday, Jun 01, 2011 at 19:34
if that was the case there would be a lot of people driving unliscensed i think.
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Reply By: lindsay - Wednesday, Jun 01, 2011 at 19:50

Wednesday, Jun 01, 2011 at 19:50
Murray, that bloke is wrong. I have a heavy combination licence I need that to drive a semi trailer , a tag alony or a truck and dog. Tha last two are attached to the rear of the rear axle. In my case a heavy combination is required in Vic if the ATM of the trailer exceeds 4.5 tonnes.
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