And don't think just because you fly electric too that the prop can't do as much damage. Look at my pic below. This was from a 12x8 folding prop on a speed 600 w/3 to 1 gearbox. I was testing the motor and had my tx on the table. Plane system was on and all I did was just bump the throttle lever by accident. Prop bit my forearm. This was just at less than 1/8 throttle!!!! Still have blood stains on the basement floor. Took 4 stitches and a tetanus shot. I've also had a prop fly off an OS .46....damn nut came loose and prop and spinner flew off. Luckily it didn't hit anybody. I now check all my props and spinners for being loose. I think all new flyers should have a look at what a spinning prop can do. Picture is worth a thousand words.

Dave...