Blade Geometry Straight, constant chord, NACA0018 Chord Length = 6.09 cm Span = 23.4 cm Material: ABS (Somos WaterShed XC 11122) Mounting: Ridgidly fixed to circular endplates at each end Mounting Angle: 6 degrees, leading edge out, as referenced from the quarter-chord Number of Blades = 2