RE: Prop question....
Your right about the topic on hand in this thread. I appreciate all the physics and theroy behind the posts. Once again, the beauty of this hobby comes out. It's a match between pilot and his plane. What he likes what he doesn't. My 580 feels really good with the 2 blade just as I feel much more comfortabe with the 3 blade on my Magic. It may be a mental condition but when I am out at my field and have several flawless flights under by belt and a smile on my face..........that's all that matters.
Posted on: 12/23/2005 12:15 AM by Author "J Hallock" in the forum "Aerodynamics"
http://www.rcuniverse.com/forum/fb.asp?m=3683519

RE: Prop question....
So is there any truth to the statement that I hear so often....."3 blade props generate more thrust at lower RPM than a two blade"? I understand that the 2 bladed props are more efficient than 3, but aren’t the 3 blades essentially doing the same amount of work at an equivalent RPM as the 2?
Posted on: 12/21/2005 12:30 PM by Author "J Hallock" in the forum "Aerodynamics"
http://www.rcuniverse.com/forum/fb.asp?m=3677482

RE: Prop question....
Right on. I have experimented with props on both of those engines. I guess it just might be that I found a really good match for the .46. I am crazy about the smallest details on my airplanes that improve performance and while my planes are not the biggest on the field, they certainly are very well cared for. Until this point I have pretty much just gone by the engine owners manual as to the engine/prop comb. Now I feel like stepping out of my "by the book" zone and still try to stay within the performance envelope of the engine. Thanks.
Posted on: 12/20/2005 10:03 AM by Author "J Hallock" in the forum "Aerodynamics"
http://www.rcuniverse.com/forum/fb.asp?m=3673379

Prop question....
I have been resisting the urge to experiment with my engine prop combo for a while and now I can't stand it any longer. What are the advantages / disadvantages to 2 vs. 3 blade props? It seems like every time I see a mag article on this topic a professional has a different opinion. I have 2 planes I aam flying right now, the .40 size Model Tech Magic and the CAP 580. I have a .46 OS La with a 3 bladed 10 x 4 on the Magic and a .50 OS FX with a 2 blade 11x7 on the CAP 580. The magic I have flown with a 2 bladed prop but it seems to be more stable in the air with the 3 blade. I am hesitant to try a 3 on my 580 just because it.... well just because I just finished building it and have only flew it 3 times. Do you think there would be a suitable 3 blade out there for that plane/engine combo?
Posted on: 12/20/2005 12:43 AM by Author "J Hallock" in the forum "Aerodynamics"
http://www.rcuniverse.com/forum/fb.asp?m=3672557

RE: Carden Cuda Build
Looking forward to your progress on your Cuda. - Joshua
Posted on: 12/14/2005 11:50 AM by Author "J Hallock" in the forum "Carden Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=3653027