[AT] weighted tires or not???

[Spencer Yost]

Not a physics expert, but I would expect would be harder to tip sideways, no difference rearward. For sideways the radial force would have to be higher but would accelerate faster once it did, with possible additional  consequences(ie crushing you instead of pinning you, continued barrel rolling, etc).  I suspect any safety margin (if any) would be minimal and not worth overturning your other considerations for not loading the tires.

I watched a man flip a Farmall M while loading it on a  trailer. I was looking in his general direction but wasn’t watching him specifically. So I didn’t notice exactly what caused it. But I think a rear tire came off a ramp.   The tractor flipped up rearward, but then sideways before it completed the rearward flip.  It was at a show and EMS was already in attendance.   They actually beat me there even though I was maybe only 40 yards from him.  He walked away without need for further medical attention.  Because of the crowd and commotion I never got to talk to an eye witness to find out what exactly happened.  

PS:  To this day the memory of a Farmall grill reaching for the sky and then listing to the left is clear as a bell.  Lucky guy....

Spencer 

Sent from my iPhone

> On Sep 2, 2019, at 3:37 PM, John Hall <jtchall at nc.rr.com> wrote:
> 
> All this talk about wide front vs. narrow front got me wondering about something else. Are tractors with fluid filled rears more stable on hills or in quick maneuvering on uneven ground? The reason I ask is that I replaced the tires on a IH utility tractor we have had since new (1972 454). It has over 8,000 hrs and we have always had weighted tires on it. Well I didn't have time to fill the tires with fluid before I began using it this spring. So far I am liking the less weight for treading on wet spots in fields. I recently reduced the air pressure (it was at 25, I dropped it to 20) because it was shaking me to death while spraying a field. The only time the loss of weight has been an issue is moving one load of hay--it was digging pretty bad. We do all of our bushogging with this tractor so there are quite a few banks and hillsides to get into. Wonder if it would be more stable with the fluid in?
> 
> John Hall
> 
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