Re: (ET) How good and fast at cutting

[David C Robie <mycroftxx1 juno com>]

Even a gas tiller would do the same program.  I tilled with a Simplicity
Landlord 101 10hp in low back in the days when a guy could still grow
stuff here and with all the clutch pumping felt like I was pedaling the
blasted thing along.  Nature of tilling, I guess if you want to do a
thorough job of mixin it up.  Even a 2 wheeler tiller you gotta hold
back. 

If there was decent and affordable hi current low voltage electronics in
the 70's, suppose GE woulda used it.  I have a fullsize 120V vehicle, an
81 Ford Courier (same as an 82 Mazda) pickup with one of the old  GE lo
freq pulsing SCR controllers in it (stock) and believe me, you would not
want that in a tractor.  Would sound like a sputtering arc welder up that
close.  At low (creep) speed it jogs the motor (23 hp continuous duty
series type bout 45hp  when accelerating, forced air cooled) at bout a 10
hz rate which would jar your teeth loose with anything small as a
tractor, even with a smaller hp motor.   BTW - the model number of that
controller is EV1.  *familiar number to us all*.

Dave
Weymouth MA


On Sun, 29 Oct 2006 23:02:08 -0500 Christopher Zach
<cz alembic crystel com> writes:
> The one time I really wish I had infinite speed control is when 
> tilling. 
> As it is, I sit in LL, and creep-stop-creep-stop while whacking away 
> 
> with the tiller.
> 
> I do however love said tiller; it makes the leaves go away so well.
> 
> Chris
> 
> 
> David Roden (Akron OH USA) wrote:
> > On 30 Oct 2006 at 1:34, David C Robie wrote:
> > 
> >> Electronic control.  Not necessary.
> > 
> > Sigh.  I suppose.  But it annoys me that GE didn't exploit the 
> great 
> > advantage of an electric motor over a gas engine; that is, the 
> fact that it 
> > needn't idle and delivers good torque over a wide RPM range.  The 
> small 
> > frame control system, with the motor droning away at full blast 
> all the time, is 
> > just plain crude.
> > 
> > I have the New Idea version of the GE ER8-36, and I'm going to put 
> a 
> > controller in it.  In addition to the above, having to shift that 
> balky 
> > transmission to change ground speeds is just too much hassle.
> > 
> > I really like having the Alltrax in the E15.  The Alltrax doesn't 
> really suit, so 
> > I'm planning to use a 4QD for the New Idea.  I'll probably just 
> disconnect the 
> > "clutch" linkage and fix it in place as engaged.
> > 
> > I'll tell you, once you've had the pinpoint speed control that an 
> electronic 
> > controller affords, you'll never look back.  Being able to creep 
> the tractor 
> > forward or backward by half-centimeters is kind of addictive.
> > 
> > 
> > 
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