Re: (ET) Motor Specifications

["Bob Murcek" <RMURCEK geisinger edu>]

I developed a great respect for the motor when I replaced its bearings.  
It was on the bench, just back together, and I applied just enough juice 
to get it to turn, maybe 4-5 volts.  It must have been going less than a 
hundred RPM.  When I wasn't able to stall it by grabbing with a 
leather-gloved hand, I realized I was dealing was a serious motor!

>>> "SteveS" <ssawtelle fcc net> 1/18/2002 5:19:59 PM >>>
Oops - should have said max RPM not max speed.

>From your calculations that's a pretty healthy motor. I was surprised at 
>how
big it was when I looked underneath the chassis. The ran a deck motor today
at 12V and was surprised at the torque - also more than I thought.

It's strange that there seems to be no 'official' GE data sheet on the 
motor
itself. But I guess if it was special built for Elec-trak there was no 
need.
Also I guess if they listed it as 5HP all the gas engine guys would scoff.

- Steve

----- Original Message -----
From: "Elie, Larry (L.D.)" <lelie ford com>
To: "'SteveS'" <ssawtelle fcc net>; <elec-trak cosmos phy tufts edu>
Sent: Friday, January 18, 2002 4:29 PM
Subject: RE: (ET) Motor Specifications


> The speeds are listed in the online literature.  My recollection is 7 mph
top speed for most of the 'full frame' models, and 8 mph for the E20 and 
I5.
>
> Motor HP is another story.  It has been reported at 20 HP for short
duration, but if you figure out when the thermal overload trips and back
computed the continuous HP, my E12 is 4 or 5 HP.  The deck motors compute 
to
about 1 HP by the same method.
>
> Larry Elie
>
>
> -----Original Message-----
> From: SteveS [mailto:ssawtelle fcc net] 
> Sent: Friday, January 18, 2002 3:15 PM
> To: elec-trak cosmos phy tufts edu 
> Subject: (ET) Motor Specifications
>
>
> Hi all,
>
> Part of the reason I wanted an Elec-Trak is that it looked like a good
intro
> into electric vehicles. I'm real curious as to what the specs are on the
> various motors. I have looked thru the literature at elec-trak.org
(awesome
> site) and searched thru the archives of this list. I've seen the question
> asked, but never really answered (I think). Anyone know what the specs
are?
> (HP, max speed, etc).
>
> - Steve
>