title_body: How to measure the pitch of a propeller? I have some random drone propellers which I don't have any information on. I looking to find a way to measure the pitch of the propellers to figure out if they will be well suited to a 5-inch drone I have. Is there any way to go about measuring prop pitch? (at least somewhat accurately)
upvoted_answer: Theoretically the pitch of a prop is supposed to be the distance it would move in a full rotation (in an ideal world).
  
  As most modern props vary pitch along their length, a single number is almost impossible to measure. Manufacturers tend to give a number which is an indication of how the user would expect the prop to perform.
  
  Most propellers will work on any 5" drone, they usually have the pitch printed on the upper surface of the blade near the leading edge.