Flettner Rotor - Thrust Estimate
Lift-based thrust of a Flettner rotor given rotor size, rotation rate, and relative wind - the Magnus-effect calc used for sizing Rotorsail.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Spin ratio (tip speed / wind) | ||
| Lift coefficient | ||
| Projected rotor area | m² |
Source: Norsepower Rotor Sail technical data
In short
Lift-based thrust of a Flettner rotor given rotor size, rotation rate, and relative wind - the Magnus-effect calc used for sizing Rotorsail.