Trains of A-organization (1001 and 1002), two-car trains, and Trains of B-organization (1003 - 1006), four-car trains, were manufactured each with different base carriages, in-vehicle facilities or window shapes to obtain comparative data. 2両編成の「A編成」(1001・1002)と、4両編成の「B編成」(1003 - 1006)が製造され、台車や車内設備、窓形状などに差異を付けて比較材料としている。 |