“”..Secretary of the US Army wants electric tanks...”
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Even better, why not wind powered tanks — with sails? Just like the old sailing ships. What could be more earth-friendly than that? This will strike utter fear in the hearts of our foes.”
Perhaps a better option would be nuclear powered tanks. Take one out and deal with the fallout.
Back in the late 1950s, that was proposed and crude design was proposed. It looked like a pregnant tank.