Kiha 391 basic test run
The basic performance test was performed on Hakubi, Sanyo line
The poor performance of the braking system was already revealed at this basic test run.
While running at high speed, the noise level was reasonably low even at the high notch position and there seemed to be no problem, but when starting at stations, the high noise level with the high notch position might be thought to become one of serious problems.
