Propeller - Optimal Pitch-Diameter

Optimal pitch-diameter ratio maximising open-water efficiency for a given advance coefficient - the basic diameter / pitch trade-off.

PropellerP/DOptimal

Loading calculator…

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/D)_{opt} \approx f(J)

Symbol	Meaning	Unit
$J$	Advance coefficient
$P/D$	Pitch-diameter ratio

Source: Oosterveld & van Oossanen - SNAME 1975

Optimal pitch-diameter ratio maximising open-water efficiency for a given advance coefficient - the basic diameter / pitch trade-off.