[Farmall] M - Tricycle Wheel Spacing

[George Willer]

Roberto,

You're pretty close to the reason the WFE is more stable.  Consider two 
identical tractors except for the front end.  Assume they both have a loader 
with a full bucket raised to the same height.  Now imagine one rear wheel of 
each is raised by a bump or the other falls in a rut.  It's obvious the 
tractor with the NFE will have it's center of gravity moved farther into the 
danger zone by the same obstacle simply because of the difference in height 
above the pivot point of the C.G.  The limit stops on the axle don't really 
play a primary part.

The effect is amplified when inertia of a moving tractor is considered.

George Willer

----- Original Message ----- 
From: "Roberto Rivero" <rj.rivero at gmail.com>
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Sent: Friday, April 22, 2005 2:40 PM
Subject: Re: [Farmall] M - Tricycle Wheel Spacing


Ok i was rereading all the posts and as Mike said the tractor is easier to
handle with NFE and yes the NFE is a more solid construction (stronger) than
the WFE, and the physics lows involved here are about stability, and that
means the center of gravity stays as low as possible and inside the
stability area, which yes in a WFE is a rectangular area and in a NFE is a
triangular area, but i see very difficult that the center of gravity falls
outside the triangle of the NFE, ....any way for a front loader i use an old
CASE 580 K because other reasons, but i allways learn something new reading
this list.
 Roberto


 On 4/22/05, Mike Sloane <mikesloane at verizon.net> wrote:
>
> Not to start up an old food fight, but I have had dealings with several
> rolled over tractors with loaders (fortunately none involving me on
> them!), all wide front, and I never have seen a similar narrow front
> rolled. (Maybe folks with narrow front tractors are more careful?) If
> there is a difference in stability, it is, to my mind, a very small
> percentage. And if you are foolish enough to drive around with a full
> bucket of rocks raised high, the odds of a roll over are probably about
> the same either way. The only way to absolutely insure stability for a
> loader machine is to have it on a skid steer or crawler with a rigid
> wheelbase, not a machine like a tractor where the front end pivots.
>
> Just my opinion, of course. :-)
>
> Mike
>
> Jim Hudson wrote:
> > George that is why a 4 wheeler is much safer than a 3 wheeler. Did
> > they outlaw 3 wheeler's??
> >
> >
> > ----- Original Message ----- From: George Willer To: Farmall/IHC
> > mailing list Sent: Friday, April 22, 2005 8:47 AM Subject: Re:
> > [Farmall] M - Tricycle Wheel Spacing
> >
> >
> > Mike,
> >
> > The laws of physics prevail whether we understand them or not. Those
> > of us who understand such things do know that the wide front is more
> > stable. The effective pivot point of a WFE is higher... having the
> > same effect as lowering the center of gravity. No myth here, just an
> > observation of fact. What is not clear is how MUCH more stable, but
> > the fact that the WFE is more stable is indeed a FACT.
> >
> > Of course the NFE is more maneuverable, but that comes at a reduction
> > in safety.
> >
> > George Willer
> >
> > ----- Original Message ----- From: "Mike Sloane"
> > <mikesloane at verizon.net> To: "Farmall/IHC mailing list"
> > <farmall at lists.antique-tractor.com> Sent: Friday, April 22, 2005 7:30
> > AM Subject: Re: [Farmall] M - Tricycle Wheel Spacing
> >
> >
> >> Sorry, Roberto, but a loader works just as well on a narrow front
> >> tractor as a wide front, and for the same reasons. In fact, the
> >> front end of a narrow front tractor is considerably stronger than
> >> the one on a wide front, and the tractor is considerably more
> >> maneuverable. A big advantage for me when installing the 1701
> >> loader on my 706 was that I could drive right through the frame to
> >> mount it!. The stability of a wide front over a narrow one is a
> >> myth, but I will agree that a wide front tractor rides a little
> >> better over a rough surface (like my lane before I graded it level
> >> last month).
> >>
> >> See:
> >> <http://public.fotki.com/mikesloane/farmall_706_tractor/ns-6.html>
> >>
> >> Mike
> >>
> >> Roberto Rivero wrote:
> >>
> >>>
> >>>
> >>> But how is this tractor equiped???? is a tricycle?? is a narrow
> >>> or is a wide front???? Sorry may be i did not understand all the
> >>> posts, but if the tractor is equiped with a front loader, a wide
> >>> front end is needle for a lot of reasons (some of them were
> >>> posted here). _______________________________________________
> >>>
>
> --
> Mike Sloane
> Allamuchy NJ
> mikesloane at verizon.net
> Images: <www.fotki.com/mikesloane <http://www.fotki.com/mikesloane>>
>
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