As China's Ministry of Railways sought to increase the running speed of trains nationwide in the 1990s, many new electric locomotives were designed, each one tailored for a specific type of railway line. One particularly successful development was the SS7C, or Type Shaoshan 7C Dual Purpose Electric Locomotive.
The SS7C Electric Locomotive has its roots in the SS7 Electric Locomotive, a Bo-Bo-Bo loco developed for mountainous lines where the many tight curves meant that Co-Co locomotives would quickly wear out their wheels as well as the track, thanks to the larger tri-axle bogies.
The SS7C was designed to surpass the 100km/h barrier. With a lighter axle weight and altered gear ratio, the maximum design speed was 140km/h, with a maximum operating speed of 120km/h as specified by the Ministry of Railways. In addition, the SS7C was fitted to provide locomotive-supplied power to passenger cars (for air conditioning, lighting etc.) as well as dual-pipe air braking, optimising its use in higher-speed passenger trains.
The last 15 units (SS7C 0157-0171) were given a different livery to the previous units for reasons unknown, and these rare yellow units were nicknamed 'Banana' by rail enthusiasts.
Developed to a very high standard by RISC Simulations, the SS7C features a highly detailed and accurate external model and cab along with advanced scripting for the controls and custom sounds.
This add-on includes the SS7C dual-purpose electric locomotive in both the standard livery and the yellow 'banana' livery seen on the last 15 units.