The JNR Class DF93 was a diesel-hydraulic locomotive operated by the Japanese National Railways from June 1962 to March 1964.
History[]
The DF93 was a prototype diesel-hydraulic locomotive used by the JNR, with a single locomotive prototyped while the company developed its own locomotives for domestic sales as well as potentially for export. A total of ten locomotives were prototyped; these were Hitachi's DF90, DF91 and DF93, Kawasaki's DF40, Kisha Seizō's DF41, Nippon Sharyo's DD42 and DD93, Shin-Mitsubishi's DD40 and DD91 and Toshiba's DD41.
One locomotive was built in 1960 by Hitachi. The locomotive was purchased by the Japanese National Railways in June 1962 and numbered DF93 1. Intended for mainline use, DF93 1 was based in Chiba where it hauled passenger trains such as the Shirasuna service and was occasionally used for internal switching duties. DF93 1 was returned to Hitachi in March 1964 and presumably scrapped afterwards.
Design[]
The DF93 featured a semi-streamlined design, nicknamed the "Shōnan style". The Hitachi logo was splashed on the side of the locomotive.
Specifications[]
The DF93 was fitted with a MAN L12V 18/21mA prime mover produced by Hitachi under license and a Hitachi LAZ10R hydraulic transmission. The prime mover produced 1,100 PS (809 kW).