[AT] ROPS

[charliehill]

Just curious Dennis,  ever test any "big trucks" with narrow front ends? 
............... hmmmm that's what I thought.  grins.

Charlie
----- Original Message ----- 
From: "Dennis Johnson" <moscowengnr at yahoo.com>
To: <at at lists.antique-tractor.com>
Sent: Monday, April 05, 2010 1:38 PM
Subject: [AT] ROPS


>I agree with Dean that the only significant this is the height of the 
>center of gravity, and the width of the rear heels. The front only comes 
>into play only on a few extreeme circumstances such as dropping the rear 
>wheel in a hole or something like that.
> I have personally done rollover testing of big trucks on tilt tables, and 
> have also designed rollover bars (Headache racks) for many truck. I have 
> seen some of these units tested when the trucks rolled over, and have seen 
> some fail, but still took enough energy to prevent killing or severly 
> huring the driver.
> The problem with most rollovers is it is rarely as simple at the tilt 
> table testing. Many times there are 2 or 3 factors that add up to cause 
> accidents.
>
>
>
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