Re: motors/torque

[Will Montgomery <wsmontg5-at-netscape.net>]

Title:

I recommend EV warriors.  Penn State Joe uses drill motors with great success But his tank is under 100 lb.

Will

buttsakauf-at-earthlink.net wrote:

Then what do you recommend?? What kind of torque is needed to turn? I know torque is based on motor design and voltage adds rpms. Though bumping up the voltage usually increases torque due to the extra power available. However 24v requires very large batteries and you lose ALOT of capacity. For example a 24v SLA and a 12v SLA can be the exact same weight but the 12v will have almost double the capacity. SO I should try to find a VERY strong pair of drill motors...right? I DON"T KNOW...argggg.
Mike Butts


-----Original Message-----
From: Will Montgomery <wsmontg5-at-netscape.net>
Sent: Oct 7, 2004 10:00 AM
To: tanks-at-rctankcombat.com
Subject: Re: motors/torque

Mike,

Two 600 motors can move a 60lb Musashi through water .  Via kiddy car 
gearboxes they can move a tank 1 mph on concrete. On grass they can't 
turn. Not enough torque to over come the friction of the other track.

Will

buttsakauf-at-earthlink.net wrote:

  

I see all these hp ratings on electric motors and that is good for giving me an idea of what I need. My problem is that I do not know what kind of torque is needed to propel a 100lb tank at a decent speed. EV warriors are great but when they stall they draw huge amps. I have no idea what can really do the job. Would a hefty 600 size motor be ok or is that too small. What about a 600 on a gearbox? I want a tank that can take on any surface and maintain speed (4-5mph??). I really don't know what to look for. 
Mike Butts