Monday, Apr 04, 2016 at 00:14
Motherhen - I don't think the truck is speeding - speed limiters are fitted to all trucks over 12 tonne under ADR 65/00 - and the speed limiters cut in between 105-115kmh depending on the model and type and how they are set.
Of course, speed limiters can be bypassed - but God help any truckie caught doing so - because both the police and transport inspectors carry out random checks regularly.
My truckie neighbour at my workshop says the authorities are really laying into them today, and he said he knows blokes getting tickets for doing 103kmh.
There have been cases of truckies caught speeding at more than 115kmh downhill in neutral ("angel gear") - but that's only in hilly country on the East and South Coasts.
I'd say the video quality and the video transfer to YouTube probably makes the truck look like it's travelling considerably faster than the speed limit.
I have found most of the big rigs are quite often sitting around 108-110kmh, though.
Regardless, even if the truck is travelling at the 100 kmh limit, it's pretty foolish of the caravan hauler to overtake at the speed he/she is doing.
He/she is definitely doing at least 110-115kmh - which is pretty risky with a lot of vans - and the van looks like about a 19 footer, which is long for a single axle van - thus assisting with instability.
If you watch closely, you'll see the Falcons brake lights go on at 29 secs in the replay - right as the sway is increasing - and the brake application only worsens the sway.
There's only one thing to do with a speed wobble - lose pace by backing off the accelerator - try not to touch the brakes - and counter the sway with gentle, but fast, steering corrections, that inhibit the sway, not worsen it.
Many people are too slow and too severe on the steering corrections, and exacerbate the initial sway, thus leading to disaster.
Cheers, Ron.
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