Steering with momentum

Question

I'm thinking of making a RC tank that should be simple as possible. But I'm not sure how to make proper steering for the tank. I googled about tank steering and found (for me) complex solutions as dual differential steering.
Now, my question is - Is it possible to steere the tank with momentum?
Idea for project is - Left motor will power left Wheele(tracks are too complicated to design), right motor will power right Wheele. Powered Wheele are at the back. So if I want to steere the tank to the left side, right motor will be on, left will be off. Does this method Works? Should right motor go forward but left go backward?

Here is the sketch. This is sketch for rotating/steering from place.
I guess it will work fine, but what if tank moves forward/backward and wants to steere?

kamran · Answer

You want to either use swivel pivot on the front wheels like shopping cart front wheels, or place the CG of your toy near the rear end.

Or else the steering will not be very effective.

If you do that by applying different power to left or right rear wheels you get turned to right or left.

If you watch delivery fork lifts of say Home Depot, you see they can maneuver precisely into tight corner. Their front wheels are free to pivot. And back wheels are attached to a joy stick.

Steering with momentum

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