History: Franz Kruckenberg, German aircraft engineer built the Schienenzeppelin in 1929. [728X410]

https://i.redd.it/g3t2vmvgmwkx.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/528lux/franz_kruckenberg_german_aircraft_engineer_built/?utm_source=ifttt