Thank you for the link. I will print and read it.
One question keeps coming to my mind. Everyone says you need choose the right propeller for you Airplane and Engine. It appears to me that is a balance of the two. But nobody has come out and explained to me how you choose the right propeller for your Airplane. Many say you need to experiment. Experimenting can be really dangerous. You need to have something that works for your model or it isn't going to fly for the first time. It's the first flight you got to get right. After that I could see someone experimenting. Please tell me: how do you figure out which propeller is going to take your model up for the first time?