The Ford Barn - View Single Post - 2 blade fan or 4 blade fan? That is the question!

ldj1002 · 07-10-2011, 07:21 PM

I am not a aeronautical engineer and can't explain it but I am a pilot and can tell you. I have operated same airplane with a 2 blade prop and switched to 3 blade. The 2 blade prop has much better performance. I have done the same with several types planes and was the same for all. Seems logical that the 2 blade Model A fan would pull more air than one with more blades.

07-10-2011, 07:21 PM	#2
ldj1002 Senior Member Join Date: Mar 2011 Posts: 181	Re: 2 blade fan or 4 blade fan? That is the question! I am not a aeronautical engineer and can't explain it but I am a pilot and can tell you. I have operated same airplane with a 2 blade prop and switched to 3 blade. The 2 blade prop has much better performance. I have done the same with several types planes and was the same for all. Seems logical that the 2 blade Model A fan would pull more air than one with more blades.