Star down under.:
Fully agree Dig, I often see straps used where I’d use chains. How many drivers can tie a Truckie’s hitch, these days? Not that ropes are legal any more.
Re securing a trailer atop of another, I’ve always chained between the dual on trailer and dolly, if no dolly, cross chained from the chassis/top of the legs. I’ve never had to do it, but if fitted with alloy rims, I assume a decent thickness of rubber would be needed to protect the rim from the chain.
I too have never had to scratch the head with alloys SDU Guess the easy way out would be to cross chain off the front axle of the tri or bogey and leave the alloys to sparkle in the sun.
As a foot note what can happen if not held by at least one restraint when setting up to unload we had a fella on a rig move took all his chains off then roared over the lease to the pole truck which was lifting trailers off for us hit the brakes the the bottom half stopped the top didn’t he had to find his swag to sleep in as his bunk was a tad untidy.
Dig