Re: what is my propeller?
The prop size is usually stamped into the prop. Look allong the barrel of the prop, if not there I've sometimes seen the prop size cast into the prop, look at the area of the prop under the prop nut. The numbers will be in this format-15 x 15, the first number being the diameter, the second being the pitch. If you can't find the numbers you'll prolly have to take it to a prop shop to have it sized.
Red