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(ET) ET power
- Subject: (ET) ET power
- From: "Dean A. Stuckmann" <dstuck lakefield net>
- Date: 7 Jun 99 22:07:07 -0500
- Sender: owner-elec-trak cosmos5 phy tufts edu
Hi..... I'm here to confuse things even more yet....
According to an old Popular Science article I have from June 1970, the E12
is comparable to a 10 HP gas, the E15 is comparable to a 12 HP gas, and the
E20 is comparable to a 14 HP gas. Can anyone verify this? I tend to
believe it because the I think the heavy use attachments are the same no
matter what large frame tractor they go on. Or did a blower or tiller for a
E20 have a larger motor? If they were the same, then the difference is in
the .3 kw larger traction motor in the E20, which doesn't add up to 5 HP.
I think the E20 also had a higher amp hr battery back as standard
Dean A. Stuckmann
>Larry.... I'm here to confuse things even more....
> The E15 was supposed to be comparable to a 15 hp gas tractor, and the
>E20 a 20 hp, and so on. If we use the rule of thumb that 1 hp electric
>equals 3 hp gas, an E15 would need 5 total hp (15/3) electric combined in
>all motors. The 5 hp electric in turn would be 3.8 kw. Subtract 1.5 kw
>the traction motor and the remaining 2.3 kw is for large accessories, such
>as the snow blower.