On Sat, 30 Aug 2008 16:49:19 +0100, nightjar wrote
(in article
giganews.com>):
>
> "nik.morgan"
talktalk.net> wrote in message
> news:0001HW.C4DF0857012C6A12F02845B0@free.teranews.com...>> On Sat, 30 Aug 2008 11:55:48 +0100, nightjar wrote
>> (in article
giganews.com>):
>> >>>> Any idea what happened to the truck? Thats a very sudden loss of
>>>> control. Burst tyre?
>>>
>>> I was following a lorry up the M1 that had a burst tyre and it produced a
>>> huge black cloud as it went; large enough to hide the entire vehicle for
>>> a
>>> second or two from where I was, about half a mile behind. Fortunately, it
>>> was in the 1960s, so there was nothing around, apart from me, as it swung
>>> across all three lanes and back again. I don't see anything like that in
>>> the
>>> video. If I had to guess, I would suggest something like a steering link
>>> failure.
>>>
>>> Colin Bignell
>>>
>>>
>>
>> Steering failure should result in straight ahead, due to the toe in of the
>> tracking. I had the drop arm fracture on a Standard Vanguard many moons
>> ago,
>> we just went straight on then wandered down the camber to a halt on the
>> N/s.
>
> As the lorry was in a left-hand curve, with the wheels already turned left,
> I would bet on the forces wanting to turn the wheel left overcoming toe-in
> should the steering link break, particilarly if it happened on the left
> wheel.
>
Yes I can see that if there was a track rod failure but I would consider as
long as the wheels were held in their correct relationship to each other they
would fail to straight ahead, Whilst in your car try letting go of the
steering whilst in a tightish turn and the vehicle should straighten out
automatically, my landrover does.
>> The filme is more like a instant blowout on the steering axle or a sudden
>> steering axle brake seizure on one side.
>
> IME lorry tyres are quite spectacular when they blow and I see no evidence
> of that. However, as lorry brakes fail to on, that cannot be ruled out.
>
I agree, there is no evidence of explosive decompression.
>> Immediately prior the driver was not
>> in a situation where avoiding action was needed, therefore if it was a
>> sudden
>> death it would be most likely to continue straight on IMO.
>
> My view too.
