APC 9x4.7 SF Slow Flyer Counter Rotating Pair Electric RC Composite Propellers

APC props are some of the best in the industry. Less expensive and more readily available than Graupners.

All 6 were destroyed on the first flight. Props can not withstand direct impact with a concrete building... absolutely worthless. In all honesty I'm sure they are fine I wish I had been paying closer attention to the GPS cable that I left unplugged. launching in manual mode when expecting assist makes for a fun takeoff.