Comment by lqet

The first non-experimental ship ever outfitted with one of these was the MS Kempten on Lake Constance, here seen (in the back) at Lindau: http://www.bodenseeschiffahrt.de/Bilder/Motor-Li/deutschland...

The Augsburg seen in the front right was also outfitted with Voith-Schneider propellers.

The original MS Kempten propeller is exhibited at the Swiss Museum of Transport in Lucerne: https://res.cloudinary.com/hnwlmxxdz/image/upload/w_660,c_sc...