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An overview is given of the Japanese National Railways (JNR) Maglev system, which uses superconducting magnet levitation and linear synchronous motor (LSM) propulsion. The progress made has included a speed of 517 km/h reached by experimental vehicle ML500, a three-car test run by the MLU001 vehicle, manned test runs, and test runs with aberrations purposely introduced into the guideway. A maximum speed of 352 km/h was achieved for the three-car train. After noting guideway and power supply facility components, the MLU001 and MLU002, the discussion centers on the vehicle body, carriages, superconducting magnets, and helium liquifier and refrigerator units.