Your correct in that the compliance plate would appear to be the engineered certification.
At rego checks I've had them inspect it and other times not in NSW.
Also what Scoopa mentioned about trailers...they arent so called engineered although the blueslip guy does give them one hell of a "check out"..there is also a RTA booklet for manufacturing home made trailers.
When I built my 6m enclosed trailer it was rated at 4 tonne..had to provide evidence of axle specs, then tyres and bearings...also there are austrailan stds for drawbars I recall and I provided the calcs for these too---but they were over his head.
I can assume rightly or wrongly that tow bars would be looked at in a similiar light ?
I actually had one of the welders at work ( when I was working at ADFA) do all the welding for me. As Engineers they made sure everything was done to the letter. I came back at one stage and I found my truck was hanging from the overhead crane connected via chains and scales all onto the tow bar. They tested lateral tensions and chassis flex and the list went on and on. they certainly tested the crap out of it lol
The weakest link on that brute would have to be the spring hangers?.
There are clear guidlines on towbar manufacturing in Victoria that details the design and testing methods and who is authorised to carry it out.
Got love how these days stress analysis is just a few clicks of a mouse.
wow , looking at my enclosed trailer chassis in the making brought back a few memories of some long hours..9 yrs agoYour correct in that the compliance plate would appear to be the engineered certification.
At rego checks I've had them inspect it and other times not in NSW.
Also what Scoopa mentioned about trailers...they arent so called engineered although the blueslip guy does give them one hell of a "check out"..there is also a RTA booklet for manufacturing home made trailers.
When I built my 6m enclosed trailer it was rated at 4 tonne..had to provide evidence of axle specs, then tyres and bearings...also there are austrailan stds for drawbars I recall and I provided the calcs for these too---but they were over his head.
I can assume rightly or wrongly that tow bars would be looked at in a similiar light ?
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