ORIGINAL: luker737
I looked at the chart at the top of the page and that was one of the charts i use .I cant remenber where i got the other chart but the one at the top of the page has the 12x6 prop that i thought was right .so thanks
Those are recommended starting points. What most of us do is have a box of props of varying sizes and try them, starting at the recommended size then go from there. Don't worry about having to many props when you are done. Ask Gray Beard, RCKen, Minnflyer, or John Buckner about prop collections...
CGr.