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Mr.Clark, Sounds great a train coasting along on its own momentum but not possible.I worked AMTK for 11yrs as a engineer and to maintain high speed it takes constant powering of the traction motors.Sure you can coast down a slight grade as long as that grade continues but eventually you'll have to level off or go up hill.If the grade is to great you'll have to use dynamic brakes.Even in Nebraska where it looks flat on a map.And what about the train traveling in the opposite direction? Whats down hill going east is up hill going west.As long as you use steel wheels on steel rails this will never change.Laws of physics.Takes energy to maintain momentum.Or have the French invented a perpetual motion machine?
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