2711 crosses the Hammerbrücke south of Hergenrath (on Aachen-Liège)
with a measuring from Aachen Hbf to Welkenraedt on 26 November 2011. The
loco is fitted with a pantograph of the new class 18 for testing purposes.
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Digital photo by Christoph Schmitz
(<a href="mailto:christoph.schmitz2@post.rwth-aachen.de">christoph.schmitz2@post.rwth-aachen.de</a>)