On Sat, 19 Mar 2011 13:36:26 -0400, Steve W. wrote:

Karl Townsend wrote:
On Sat, 19 Mar 2011 03:27:49 -0700, "azotic"
wrote:

Came across this and thought it might interest some of the metal
manglers that lurk about.

http://xlhybrids.com/products/conversion

Seems like this would be a fairly simple project for most moderatley
equiped shops. The only difficultly would be sourcing the electric
motor and inverter to run it. An old laptop with some MCU development
software to control the motor would be intresting to experiment with.

Best Regards
Tom.


Seems to me an HSM type should take on a tractor. Either a garden unit
at say 10hp. or a small utility at 25hp. Weight and space aren't
serious problems with these. Makes fabrication far easier. Run time
isn't that long per charge so the battery pack doesn't need to be huge.

My plates too full already, or I'd be on here finding a power EE type
to make it happen. I'm a bit surprised an electric garden tractor isn't
being sold. It would satisfy the yuppies need to say they are going
green.

Karl

Been done before GE Elec-trak was one version. Didn't sell very well.
http://www.elec-trak.com/
http://www.builditsolar.com/Projects...k/ElecTrak.htm

When? Lithium Polymer batteries are a whole different world than lead
acid -- they're still woefully large for the amount of energy they store
per volume than a can of gasoline, but they're a whole lot better than
lead acid.

They're just spendy -- do you want a $10000 lawn tractor?

--
http://www.wescottdesign.com