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The new "Jet Train"
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One of the most interesting technological goals of this program seems to have been abandoned. In the initial proposal the locomotive was supposed to have been equipped with a ceramic flywheel using superconducting,electromagnetic bearings. This would act as a superbattery to store energy in kinetic form. It would store the rheostatic braking system energy for traction use(regenerative brakes) and would also mean that the turbine-generator could be turned off,rather than left in idle. Such a system would allow starting acceleration curves comparable to a straight electric locomotive because you could tap power from the flywheel rather than having to wait for the turbine to "spool up" to get maximum traction current. This hybrid system sounds like it has a lot more potential(both with gas turbine and diesel powerplants) than a "simple" turbine -electric.
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