“I bought this for a Blade Nano S3, and it fit nearly perfectly. It is a push fit into the helicopter frame, and that was fine. I unwound the connecting wire, and gently pulled the old boom out. I was replacing the boom because the motor had stopped working. I put the old boom in a vice to help hold it as I worked it out. The new boom slipped it easily. The connecting plug to the mother board was slighly different from the Nano S3, but it was easy enough to shape the wires so it worked. Note the polarity before unplugging the old wire. It took a few hops for the new motor to kick in, but once it did it ran just fine. Very happy to have my Nano S3 working properly again. Note there are no instructions with the part, so hopefully this helps someone.”
