what size prop 91fx on 60-90 yak
11-14-2011, 06:11 PM
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what size prop 91fx on 60-90 yak
I have just about got this thing together and would like some opinions on the prop size for a OS 91fx on this plane. A buddy gave me the engine. It's almost new, but I have never used a large 2stroke before and have no idea what to put on it.[
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11-14-2011, 09:41 PM
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RE: what size prop 91fx on 60-90 yak
Thanks Mark. If all goes well and the weather permits I will maiden it this weekend. If it flys like it looks it will be awsome. 
11-22-2011, 10:20 AM
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RE: what size prop 91fx on 60-90 yak
It doesn't stick out at all, only the tip of the glowplug. I also turned the mounts to 90 deg. instead of how they came, to use a pitts muffler. Very clean install and very little cutting of the cowling.
