My engine
08-10-2008 | 06:03 PM
#1
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From: Gaithersburg, MD
My engine
Hello to all,
I am a new member on this site and I also am a beginner as a builder of planes.
I bought a Will Hobby Focke Wulf 190 and things are going ok. Yes I know it is not a plane for a beginner.
Just bought an older Saito OS 120 engine for it and it is not clear to me what prop to use.
I was told to use a 3B 14/10 and I forgot the number for a 2B prop.
Is anyone familiar with that engine?
Thank you.
I am a new member on this site and I also am a beginner as a builder of planes.
I bought a Will Hobby Focke Wulf 190 and things are going ok. Yes I know it is not a plane for a beginner.
Just bought an older Saito OS 120 engine for it and it is not clear to me what prop to use.
I was told to use a 3B 14/10 and I forgot the number for a 2B prop.
Is anyone familiar with that engine?
Thank you.
08-11-2008 | 12:50 AM
#2
RE: My engine
You said it's a Saito OS 1.20. Is it a Saito 1.20 or an O.S. Max 1.20? If it's an O.S. Max 1.20, is it a 2-stroke or 4-stroke?
Generally speaking, to go from a 2 bladed prop to a 3 bladed prop, you drop 1" in diameter but go up 1" in pitch. A 14x10 3 bladed prop would be similar in performance to a 15x9 2 bladed prop.
You may want to experiment with different brands and configurations of props in this general size range to find which will work best with your particular engine.
Generally speaking, to go from a 2 bladed prop to a 3 bladed prop, you drop 1" in diameter but go up 1" in pitch. A 14x10 3 bladed prop would be similar in performance to a 15x9 2 bladed prop.
You may want to experiment with different brands and configurations of props in this general size range to find which will work best with your particular engine.
