SNCF Class CC 6500 deemed unsatisfactory for Amtrak's use. Thus, Amtrak favored the Rc4 design, which would serve as the basis for their EMD AEM-7. After testing was completed, X996 was returned to France, reverted to its pre-Amtrak appearance and specifications, and continued to operate on the SNCF. As with the remainder of the CC21000's, the CC21003 was rebuilt into a CC6500 in 1997. SNCF Class CC 6500 The SNCF Class CC 6500 is a class of 1.5 kV DC electric locomotives. The CC 6500 was, together with the and diesel CC 72000, the first generation of the 'Nez Cassé' family of locomotives and
SNCF Class BB 26000 simplicity of equipment, and price. Two locomotives SNCF BB 20011 and 20012 were used to develop and test the dual voltage traction system, microprocessor control systems and auxiliary motors, BB 20012 was used to develop and test the pneumatic and electrical braking system. The Paris-based industrial design group MBD Design contributed to the design of the locomotive. 264 of the class were ordered by SNCF, only 234 were built, the last 30 of the order were instead built as a new triple voltage design capable of also operating on 3 kV DC; these used asynchronous electric motors and became the