APC 8x4 Thin Electric Propeller (APCQ4110)

This is a 8x4E Thin Composite propeller from Advanced Precision Composites. For use on Electric powered aircraft only (not for glow engines). FEATURES Gray composite propeller blades that assemble onto a propeller hub. Comes with five adapter rings that adapt to different motor shafts. Comes in a bag attached to a header card. INCLUDES One composite propeller Five composite adapter rings REQUIREMENTS ALL props require balancing, this is VERY important, use TOPQ5700. May need prop reamer, use GPMQ5005 (SAE) or GPMQ5007 (Metric) SPECIFICATIONS Diameter: 8" Pitch: 4 Hub inner diameter: 0.25"