Originally Posted by Polwart
I think you will find towing regulations are harmonised across Europe. So 300m Americans are right but 450 Europeans are wrong?
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The story this fellow tells would be exactly what I would envisage a runaway trailer causing. I wonder who's insurance would cover the trail of carnage left behind.
On another note, it sounds like trailer chains "secondary coupling" are permitted under the European EC94/20 rules but are not required.
I just can't see how dropping a trailer into following traffic can be thought to be safer then keeping it attached. Once that tongue drops into the pavement at 60 mph, brakes or not, the trailer and everyone behind/beside it is history.
I have had a four place enclosed snowmobile trailer with four sleds, around 7500 lbs detach on a steep and rough logging road in the winter. Slow speed mind you, but it was a simple matter to rehook. Without chains, it would have slid backwards, perhaps over the embankment, regardless of brakes or not. The thought of it detaching loose on the highway is the stuff of nightmares. I've never seen it happen, however the chances of a successful ending would be much higher with safety chains then without.
IMHO of course (and all us North Americans who probabaly do own about 300 million trailers, I own four and my brother in law has six so we make up for a few who have none.)