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First Hybrid Dozer

Did you see the newest hybrid?  It weighs 56,669 pound and runs a 9-liter diesel engine runs at a steady 1,500rpm to 1,800rpm.  Is this some kind of monster hybrid from Toyota or Honda?  No, it happens the the new Caterpillar D7E Dozer. This monster of a machine possess a locomotive-style series hybrid drive train with an engine that runs on bio-diesel.

It is nice to see this effort to see Caterpillar, the world's largest construction equipment maker, striving to make their machines more efficient.  I am not sure if I will ever need to drive this vehicle, but it is nice to know that I can still sit in a hybrid and pull 100,000 pounds of earth.