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This category is for a special kind of ships with a Flettner-Rotor as engine. They are sailing, but don't have sails.
English: rotor ship, or Flettner ship.
This category has only the following subcategory.
- ► Flettner rotor ships (4 C, 8 F)
Media in category "Rotor ships"
The following 12 files are in this category, out of 12 total.