Research Article
Flettner Rotor Concept for Marine Applications: A Systematic Study
Table 1
Geometric, performance, and structural related parameters collected from all-known rotor ships.
| Ship (year) | Buckau (1924) | Barbara (1926) | E-Ship 1 (2010) | Estraden (2014) |
| Type | Retrofit | Newbuild | Newbuild | Retrofit | Height (m) | 15.6 | 17.0 | 27.0 | 19.0 | Diameter (m) | 2.8 | 4.0 | 4.0 | 3.0 | Aspect ratio | 5.6 | 4.3 | 6.8 | 6.3 | End plate | Yes | Yes | Yes | Yes | Material | Zinc coated steel | Aluminum | NA | Composite | Max rpm | 135.0 | 150.0 | NA | 250.0 |
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