Re: O/T why does a skidding tractor trailer jackni

Posted by Ryan - WI on October 13, 2006 at 15:00:14 from (66.114.188.110):

In Reply to: O/T why does a skidding tractor trailer jacknife?? posted by baffling question on October 13, 2006 at 14:41:16:

I would guess it has to do with the amount of rubber on the road and the leverage with the weight. With more tires on the tractor it is reasonable to assume that the tractor would stop quicker than the trailer. This also makes sense considering most of the braking power of a vehicle comes from the front (In a car it is 70/30 but I do not know for sure in a semi) If the back wants to go faster and the tractor and trailer are not in a perfect line the trailer is going to try to push the tractor to the side. Take a hinge that is perfectly straight and if you apply a straight force it doesn't move, however if there is any angle whatsoever the hinge snaps shut quickly. Same as a tractor trailer I would guess.

No one ever explained this to me and this is only my best guess. But in my mind it makes sense.

Replies:

• Re: O/T why does a skidding tractor trailer jackni nballen 16:59:02 10/13/06 (0)

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