A monomotor bogie is a form of traction bogie used for an electric locomotive or diesel-electric locomotive. It is distinguished by having a single traction motor on each bogie.
Three-axle C'bogie of CC 40110
The SNCF CC 40100 was a French class of quad-voltage 4,340 kW (5,820 hp) electric locomotives. They were intended for high-performance passenger services on the Trans Europ Express (TEE) routes of the 1960s and 1970s. This non-stop international working required them to support the electrical standards of several networks. They are significant for combining three innovations in locomotive design: quad-voltage working, three-axle monomotor bogies and the new 'Nez Cassé' body style of French locomotives.
CC 40110, now preserved
CC 40103 at the head of TEE L'Oiseau Bleu, at Brussels Midi, 1979
Driver's cab
Side profile. Note the outline of the plated-over side window