ORIGINAL: victorzamora

Congratulations on joining us and welcome to this wonderful addiction, hobby, and vice. I'm sorry that your first day was so rough, hopefully you won't need stitches again. Anyway, I agree with everyone's comments....especially your last comment, LokiDog. That's another really common reason that props fly off....no, not because they loosen the nut themselves, but because a starter will often loosen a nut for you. If you were using an electric starter, it's very possible that that's what caused it. I've had 4 or 5 nuts come loose on me. Only one shot the prop off, and I saw it coming. I was about 4ft away, it was headed right for me....I moved and it barely nicked me. If you're starting it with an electric starter, get a spinner or a spinner AND jam nut. If you get a spinner, you won't need the jam nut.

I hope this helped, and I hope you have better luck next time out.