Just the stock prop in the pic. I think the prop is my missing link, I just can't figure out what to get. I know it isn't a 3/16 drive but I am not sure if it is 1/8 or 3 or 4 mm???? I need to buy a decent caliper. I would like to go with a real polished prop but I don't want to waste the money going to small or large. Right now I am overheating but I don't want to waste $35 on a smaller prop just winging it and end up making foam.