RE: swampcat overkill

["Steve Tyng" <stevet-at-stcharlesmd.com>]

Nick,

I just looked at these motors over lunch and ran them at 24volts.  They were pretty 
slow but with good torque.  Thinking twice about this, I think I'm going to rescind 
my offer and keep them for a future project.

Steve


>
>
> Hi Steve, thanks for the offer. Would the two 48v motors just
> suck the juice out of a battery bank pretty quickly, or could
> they run at 12 or 24v with enough torque to move my big tank?
>
> Thanks,
>
> Nick
>
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> -----Original Message-----
> From: tanks-admin-at-rctankcombat.com
> [mailto:tanks-admin-at-rctankcombat.com]On > Behalf Of Steve Tyng
>
> Sent: Tuesday, May 04, 2004 11:32 PM
> To: tanks-at-rctankcombat.com
> Subject: RE: swampcat overkill
>
>
> Nick wrote:
>
> > I've wondered about that, mostly because I know nothing about
> > batteries. Would a regular old car battery work for my application?
>
> Car batteries are designed for high amperage short duration
> loads (i.e. starting a car).  Depending on how long you want
> to run the Swampcat around before recharging, will determine
> if a starter battery will work for you.
>
> If your still thinking of using the four batteries.  I have
> two heavy duty 48volt DC motors that would probably move your
> vehicle around just fine. They came out of an old computer
> tape drive (those big floor standing units you see in old
> scifi films).  Their maybe 8" long and 4 to 5" in diameter
> with 1/2" shafts.  The caveat is that they are not permanent
> magnet (PM) motors.  They are field coil.  They use more amps
> than an equivalent PM motor but they can achieve higher
> torque than a PM motor.
>
> Steve Tyng
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