The Koutetsujou (甲鉄城, lit. Iron Fortress) is a Hayajiro from Aragane Station. After crossing through Hayatani Station and stopping at Aragane Station, it was used to evacuate Aragane's survivors once the station was breached and overrun by Kabane.
History[]
The koutetsujou was first seen being attacked by kabanes, presumably going to Aragane Station.
Aragane Station Arc[]
The Koutetsujou was being maintained by Ikoma and his friend Takumi when they found a kabane heart, which Ikoma took as a sample for his research.
Known Passengers[]
Design[]
The Koutetsujou's locomotive is a cab forward steam locomotive with most of the controls (including the motion controls) located at the front, while some auxiliary controls for engineering are located at the rear of the locomotive. It is made almost entirely of heavy metal components and it has numerous ports and slits found along its body to allow the internal Bushi to repel any kabanes that have latched on outside. A master key is required to operate the Koutetsujou, which can be inserted in a keyhole in the crew compartment.
The locomotive recently acquired a new cannon after its successful passage of the Yashiro Station.
The locomotive is capable of running at high speeds (based on episode 1 the train seemed to move at about 90-100 Miles per hour).
Before the Koutetsujou left Yashiro Station it had a boiler car at the end of the train but after that car was lost when it was knocked off the tracks by a Fused Colony, the train continued to run without issues, meaning that car was not essential to the Koutetsujou's functions or mobility.
By looking at the railway tracks it appears that they're way to larger than any common gauges as the standard railway gauge in Japan is around 1,067mm (3' 6”). But for the Koutetsujou, it would be estimated to be around 5,500mm (18' 0").
Trivia[]
To get through hordes of kabanes the front of the locomotive features a plow which looks a lot like wedge plow car to clear snow from railway tracks. While it is difficult to ascertain the locomotive's wheel arrangement due to the various side skirts covering the wheels, it is likely that it is a large articulated engerth locomotive - According to several scenes, it has 1 leading axle, 3 coupled driving axles with a Walschaerts valve gear, and one leading axle with inside bearings, followed by 2 non powered bogies with outside bearings (2-6-2+4-0-4).
The last part of the locomotive where the cannon is mounted later seems to be a separate car like a tender since there is a gap in the side skirts and it's connected with bellows to the front part.