The Halle Research Institute needed another high-speed steam locomotive to test new passenger coaches in the 1960s. The new engine 18 201 was created from high-speed tender locomotive 61 002 and parts of high-pressure test locomotive H 25 024. The steam generator was a modified new boiler construction of the class 22 with an extended smoke chamber and Giesl ejector. The machine was equipped with a counter-pressure brake to ensure that the speed was maintained precisely when travelling at high speed. Fast travel meant up to 175 km/h, because the 18 201 was initially approved for this maximum speed – later 180 km/h – but of course only forwards.
Execution in the last operating state
Cylinder stroke-synchronous, dynamic steam emission
Steam also escapes from the cylinders
cab lighting
engine lights
Raised chrome trim lines
Fine metal spoked wheels on the locomotive
LED headlight white/red can be controlled digitally
With accompanying etched set of signs
