This is a 21x13WE Thin Composite propeller from Advanced Precision Composites.|
For use on Electric powered aircraft only (not for glow engines).
Gray composite propeller blades that assemble onto a propeller hub
Comes with five adapter rings that adapt to different motor shafts
One composite propeller
Five composite adapter rings
ALL props require balancing, this is VERY important, use TOPQ5700.
May need prop reamer, use GPMQ5006 (SAE) or GPMQ5007 (Metric)
Hub inner diameter: 0.25"