Thursday, Mar 13, 2014 at 22:59
I think it is a fair comment that a tandem axle rig under the trailer would have been more stable....but by how much.
Tandem axle rigs still suffer from the same issues as every other caravan.
That is generally cheap and nasty
suspension, a single axle group in the middle of the trailer, high center of gravity and poor weight distribution.
As for tyre pressure.
OH hell yeh.....possibly the single cheapest handling improvement for any vehicle is a tyre pressure appropriate for the load and driving situation.
Some vehicles and combinations are very intolerant of the wrong tyre pressures.
Tyre selection is another issue.......most pasenger radials squirm badly when heavily loaded.....even some of the light truck tyres squirm too much for my likeing.
One of my brothers clients complained, that the boys where having trouble keeping a particular traier on the road. A reasonably large trailer often towed by utes and vans
He got this bloke to load the rig up, and took him for a drive...first stop..the service station.....where he pumped the tyres up.
It was a changed rig.
Back at the yard he procedded to tell this bloke some truths.....firtsly the trailer was too heavy for what was towing it...secondly the tow vehicles and the trailer all had pasenger radials on them, and the tyre pressures where way too low..
"If ya must keep towing this thing with these vehicles, get em onto light truck tyres and pump the tyres up properly".
cheers
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