There are some other key features of Eurotunnel 9 class as well. The locomotive bogies were a fabricated steel design, with coil spring primary suspension. The traction motors and gearboxes (one per axle) were mounted to the bogie frame and connected to the wheels by a flexibly coupled quill drive. The locomotive superstructure is supported on coil springs on a central swing bolster and the centre bogie allows 7.87 inches of lateral movement to negotiate small-radius curves. The driver's cab and exterior design of the locomotives was undertaken by DCA Design, Warwick, UK. The driving position was air conditioned and pressurised and incorporated in-cab TVM 430 signalling. The driving cab also incorporates train manager's facilities, including safety systems such as CCTV, alarms and communication links.
In this photo 2004 rebuilt EuroTunnel - 9827 was waiting with a train at the British terminal at Folkestone. The rebuilt locos usually features IGBT-based traction inverters and have one inverter per motor instead of one per bogie in the earlier series. Framed by Bani Das on 8th May 2015.