Stability

[Richard]

Been poking around Kubotas website to see if they updated it with L-48. (they have)

I noticed that the width of L-48 is posted at 74.5 inches verses 62.4 for the Grand L series (in the larger sizes).

The overall length is given at 241 (WITH backhoe) as contrasted with 118 without hoe for others, so I don't know how different the measurement may be.

Presuming all else to be equal, would that gain in width add a **significant** amount of sideways stability, or just some?

Could it even be inconsequential?

R.

 

[Bird]

I'm no expert on the topic, but it seems to me that the additional width and length would have to add substantially to the stability.

Bird

 

[Richard]

Hey Bird, Yea I agree with you. Last summer after my experience on the hill with the L-35 and the palpatations it caused me, this concept has really intrigued me.

I have yet (and don't know if I ever will) take Brutus on same hill. It would certainly be fine for where I had the L-35, but Brutus needs one brake fixed and until I replace that master cylinder it is staying in my "restricted" area only.

The L-35 had no tilt meters so I am strictly seat of the pants, but I highly suspect (from ignorance) I was on a slope (up/down not sideways) that most here would rightfully slap me upside the head for doing (at lease if I WERE to have been sideways)

That has made me try to somehow mentally quantify in my pea-brain how an extra several inches might effect stability. Would that 12 inches equate with 20% more stability? Maybe 75% more???

Just curious and seeing what who has to suggest.

 

[WVBill]

I'll try a theory - I got to brush off my trigonometry for this one:

A tractor will tip over when it's center of gravity (CG) gets beyond it's wheelbase.

Let's say for example that the 62" wheelbase (side-to-side) tractor will tip over when it leans 40 degrees to one side or the other. That puts it's CG at 36.92 inches above the ground.

If we extend that same tractor's wheelbase to 74" and keep the same CG then it will not tip over (CG outside wheelbase) until it tilts 44.91 degrees - roughly a 12.5% increase in the "stability".

WVBill

 

[Richard]

More amazement...is there nothing this neighborhood can't answer??

Fate of the world?
Lottery numbers?
Who's going to win Superbowl?
Which stocks to buy or sell?
What's ailing my loader, liver or cat?

List goes on and on...

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[Bird]

Whew, glad someone else answered that one; I doubt that I could quantify it./w3tcompact/icons/smile.gif

Bird