This is the APC 12x3.8 Slow Flyer Pusher Propeller.
Designed for counter clockwise rotating tractor applications
May also be used in a true pusher application by mounting with the
APC lettering facing toward the front of the aircraft
Long fiber composite construction
APC 12x3.8 Slow Flyer Pusher Propeller with two Hub Inserts
ALL props require balancing, this is VERY important, use TOPQ5700.
Hub Diameter: 0.50"
Hub Thickness: 0.30"
Shaft Diameter: 1/4"
Propeller Weight: 0.63oz. (17.9g)
Not for use with gasoline engines