36190 (Trix 22190) – Class 193 Electric Locomotive Since the locomotive families "Eurosprinter" and "Eurorunner" no longer correspond to the latest standards, Siemens presented the locomotive platform "Vectron" at the InnoTrans 2010 transportation exhibition in Berlin as a further development. It is being offered in two performance classes as an AC, a DC, and a multiple system locomotive as well as also as a diesel locomotive. By the fall of 2010, Siemens built five electric prototypes in different versions: 193 901 and 902 (multiple system - MS), 193 921 and 922 (alternating current - AC) and 191 951 (direct current - DC). In October of 2011 followed another DC locomotive in the form of 191 952. The underbody of a Vectron consists of two side sills, a center sill, two pivot cross members, two transformer cross members, and the cross members for the ends. Standard as well as wide gauge trucks can be installed on this locomotive. The welded truck has a wheel set guide with triangular control arms whereby the power transmission is done with deeply linked pivots and flexi-coil springs. The self-supporting superstructure consists of the cabs, the engine room side walls, and three removable roof segments. Crash elements on the ends of the locomotive are designed to collapse in a controlled manner in the event of collision and thus protect the engineer from injuries. The proven partially spring-loaded pinion hollow shaft drive that has been developed further is used as the drive on the locomotive. The "Vectrons" have quickly enjoyed popularity among private operators and leasing firms. Meanwhile over 200 units in different configurations have left the Siemens plant. Around another 200 units have been ordered. Mitsui Rail Capital Europe (MRCE) with 56, European Locomotive Leasing (ELL) with 43, Railpool with 14, and Unicredit Leasing, Inc. with eight locomotives have the largest batches of "Vectrons". Private operators with larger rosters are BLS Cargo AG (15) and boxXpress (8). The German Railroad, Inc. has not yet ordered any "Vectrons", but does order as needed from the leasing firms. By contrast, DB Schenker Rail Polska (DBSRP) that belongs to DB runs 23 DC Vectrons on its roster for freight service in Poland.