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Re: Russian Screw-job
Caterpillar Drives have been around for a while. The HUNT FOR RED OCTOBER featured such a drive in a Soviet Navy Typhoon Class submarine. In the case of a submarine there is theoretically no propellor cavitation (air bubble building up behind the propellor) so it's quiet. There are better ways to do that such as pump-jet propulsion, but I digress. The problem with a land vehicle using that motivation system is that (1) it's VERY hard to steer (harder than a tracked system) and (2) if you run it over rocks, the metal veins get broken up. It has some limited use in close littoral waters and on ice, but the bottom line is that tracks work better.
However, I agree, it's cool.
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There is nothing like returning to a place that remains unaltered, to find the ways that you have changed.
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