These are my rigs weights (in kgs) as tested at the Kerang weighbridge fully loaded car and caravan including 200L water, driver and half a fuel tank:
Front axle - 1200
Whole car (including caravan on towball) - 2900
Rear axle = 2900 - 1200 = 1700
Caravan when attached to car - 2760
Solo car 2600
Towball = 2900 - 2600 = 300
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Relationship to Holden Trailblazer LT specs:
Front axle 1450 (in spec)
Rear axle 1600 (over by 100kg)
GVM 2820 (over by 80kg)
GCM 5700 (in spec)
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Relationship to caravan specs:
GTM 2755 (over by 5kg)
ATM 2873 (over by 187)
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Conclusion:
Nothing here to worry about.
I'll lighten the towball weigh because I think 300 is a bit high and I do have a few more things in the front locker than I should - eg a log splitter!
Currently I have a stack of accumulated tin food from which I could probably lose 20kg and I really do need to do a good spring clean which will probably lose another 25kg.
The 187 over on the caravan is not going to break its chassis and that's my worst transgression.
Overall... I'm a happy bunny :)
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Edit: minor calculation error.
-- Edited by Mike Harding on Friday 21st of April 2023 08:06:01 PM
__________________
"I beseech you in the bowels of Christ think it possible you may be mistaken"
Oliver Cromwell, 3rd August 1650 - in a letter to the General Assembly of the Kirk of Scotland
These are my rigs weights (in kgs) as tested at the Kerang weighbridge fully loaded car and caravan including 200L water, driver and half a fuel tank:
Front axle - 1200
Whole car (including caravan on towball) - 2900
Rear axle = 2900 - 1200 = 1700
Caravan when attached to car - 2760
Solo car 2600
Towball = 2900 - 2600 = 300
----
Relationship to Holden Trailblazer LT specs:
Front axle 1450 (in spec)
Rear axle 1600 (over by 100kg)
GVM 2820 (over by 80kg)
GCM 5700 (in spec)
----
Relationship to caravan specs:
GTM 2755 (in spec)
ATM 2873 (over by 187)
----
Conclusion:
Nothing here to worry about.
I'll lighten the towball weigh because I think 300 is a bit high and I do have a few more things in the front locker than I should - eg a log splitter!
Currently I have a stack of accumulated tin food from which I could probably lose 20kg and I really do need to do a good spring clean which will probably lose another 25kg.
The 187 over on the caravan is not going to break its chassis and that's my worst transgression.
Overall... I'm a happy bunny :)
Hi Mike. Must say that it is most unusual to have ATM that is less GTM (2873-187=2686kg).
Your (cakculated) ATM is 2686kg BUT your GTM is 2755kg. Very strange.
Very tired at moment, having just driven Sydney to mid Western Australia, but I'll study figures later.
I double checked the caravan plate this evening and my quoted numbers are correct.
My understanding is:
ATM = maximum weight of the entire trailer including jockey wheel standing solo on the weighbridge.
GTM = maximum weight on the axles of the trailer with the tow hitch being supported by a vehicle off the weighbridge.
In reality I suspect the numbers provided by caravan manufacturers have a large guess content to them as I'm not aware of any of them doing sophisticated stress tests upon their chassis and, in any event, how do they control the welding?
__________________
"I beseech you in the bowels of Christ think it possible you may be mistaken"
Oliver Cromwell, 3rd August 1650 - in a letter to the General Assembly of the Kirk of Scotland
