Flettner Rotor - Drive Power

Electric motor input power to spin a Flettner rotor at the design RPM - 1–3 % of generated thrust energy.

FlettnerRotor power

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

P = \tfrac{1}{2} \rho_a C_D D H V_t^3

Symbol	Meaning	Unit
$V_t$	Rotor tip speed	m/s
$D, H$	Rotor diameter / height	m

Source: Norsepower / Anemoi datasheets

Electric motor input power to spin a Flettner rotor at the design RPM - 1\u20133 % of generated thrust energy.