wellss, I have to disagree with you on the more blades,the better. A lot of tests were done in the late 40's and early 50's on prop efficiency on a typical prop plane (before jets or ducted fans were available), primarily by the Canadians. All test showed that even a single bladed prop (counter balanced of course) was more efficient than a two bladed prop and that two bladed props were more efficient than three bladed props. The only reason that many of the military planes used 3 bladed (and some 5 bladed) props was to get more ground clearance without having exccesively long landing gear (a problem for retracts and strength) . The three bladed props could absorb more engine power with the alloted ground clearance problems than a two bladed prop could. The consensus was that the more blades, the more turbulent the air the following blades were in thus less efficient.