Did a search on this to no avail, and having started my private pilot training I'm sure this will not be covered between now and commercial rating. My friends father attempted to talk me out of building since I work full time, have a wife and two kids, and am going through flight training, however, I still want to build in any spare time. Everything is fairly straightforward as I'm very used to prints, however I was wondering what factors determine which prop to use? What width? What pitch? And so on... Thanks!