Library › Aircraft design › Propeller helix angle and blade twist

10×6 in propeller, 2 blades

10×6 in propeller, 2 blades: each section set at the geometric pitch angle atan(P / 2πr); chord and section illustrative

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, Xem Studio Design License — Xem Studio

Dimensions

parameter	Geometric pitch
value or range	GP = 2 pi R tan(beta) at 75% station
source	FAA Powerplant Handbook

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From the full sheet

Propeller helix angle and blade twist: every size, notes, mating features and sources. Why are propeller blades twisted?