TP1-1 Experimental Locomotive
This locomotive was developed in the Soviet Union by the Kolomna Locomotive Plant. This locomotive began development in 1939, and was interrupted by the outbreak of World War 2.
Doors opened by pressing X. This creation is 2983 bricks.
Most obviously this locomotive has a rather bizarre set of running gear. This locomotive has 4 cylinders and 8 pistons, with 2 pistons sharing each cylinder. The pistons are positioned above the driving wheels, and power is transferred through two jackshafts and a combination of connection rods. The locomotive was designed to use anthracite coal by first crushing it into a gaseous form, then either burning it or using it in an internal combustion engine that also powered the locomotive. It also has a closed system for the steam and water, utilizing 3 condensing chambers in the tender.
More information can be found here:
https://en.topwar.ru/86956-proekt-teploparovoza-tp1.html
http://www.douglas-self.com/MUSEUM/LOCOLOCO/russ/russrefr.htm