E58 RC Quadcopter Spare Parts Axis Arms with Motor & Propeller for FPV Racing Drone Frame Parts Replacement Accs, Black (355533)

The part of the arm where it pivots in the body was a different thickness than the Black Falcon's but was close enough to work. The dimensions of these are as follows, gold banded arm is .336" thick the ones without the gold band measure .343" thick. The Black Falcon's is .282".Also I had to cut off the connector and solder it in. The first time the drone would flip over without lifting off the ground, problem was wrong polarity, I switched the wire orientation to get the motor spinning in the opposite direction and it flew.

these arms are smaller than the original arms. front arms when folded out allow the propeller to contact the body. not worth the amount of modifications needed to work properly.