|From:||"Steve Tyng" <SteveT44-at-comcast.net>|
|Subject:||RE: Track limits [TANKS]|
|Date:||Tue, 21 Mar 2006 16:56:24 -0500|
> What is so special about the cromwell that makes it go faster then all of the other tanks with EV warriors?
> Is it the 24 volts?
Yes, the EVW's are running on 24v with a 9 to 1 gear reduction to the drive wheels. This is the same reduction ratio most of the other tanks are using but with more than twice the motor rpm and three times the hp.
> Is the tank light weight?
Yes, it weighs a little more than the T34 but with twice the battery capacity.
> Do the tracks have anything to do with it?
Yes, it is a sprocket driven TTS which offers a positive power transfer to the tracks. Also, a sprocket drive TTS lays loose on the drive and road wheels so there is less frictional losses in the wheel bushings as compared to a friction drive TTS.
> Does the active suspension make it run faster?
The suspensions allows it to run fast in rough terrain. It's almost as if it is gliding while going across an open field.
The sprocket drive TTS and active suspension are what makes the Cromwell really special. They took four times the time and effort to build than the equivalent systems on the T34.
BTW, for those of you who want the title of fastest tank. Just remember this, I left room for improvement in this area. The current 9 to 1 reduction is THE MOST I could fit into the design. Ratios lower than 9 to 1 (2.5 to 1 for example) are possible with a simple pulley change. The current speed of the Cromwell is THE SLOWEST it can go!
Steve "Freak'n" Tyng ;-)