Pre-Swirl Stator - Energy Saving

Fuel-saving estimate from a pre-swirl stator (asymmetric guide vanes ahead of propeller) - 3–6 % typical on full-form hulls.

Pre-swirlStatorESD

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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

\Delta m = P_{ME} H \frac{\eta_{ESD} \cdot SFOC}{10^8}

Symbol	Meaning	Unit
$\eta_{ESD}$	Saving fraction

Source: DSME / SHI pre-swirl stator bulletins

Fuel-saving estimate from a pre-swirl stator (asymmetric guide vanes ahead of propeller) - 3\u20136 % typical on full-form hulls.