EF66 Electric Locomotive - S-60

The Class EF66 (EF66形) is a six-axle, three-bogied (Bo′Bo′Bo′) DC electric locomotive designed for fast freight used by Japanese National Railways (JNR) and later operated by its descendants JR West and JR Freight.^[1] As of 1 April 2016, 39 locomotives remained in service, all operated by JR Freight.^[2]