Prop for OS 120 4 Stroke
12-02-2010, 04:11 AM
#1
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Location: Sindh, PAKISTAN
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Prop for OS 120 4 Stroke
Hi all
Just a quick question. I have a Zen 90 Pattern with an OS 120 Surpass 4 Stroke without a pump. What Prop would i need for this combo.
THnaks
Just a quick question. I have a Zen 90 Pattern with an OS 120 Surpass 4 Stroke without a pump. What Prop would i need for this combo.
THnaks
12-02-2010, 04:52 AM
#3
RE: Prop for OS 120 4 Stroke
Nice plane!! I have an Excelleron 90 with an OS 1.20 AX two stroke and a Venus II with the same engine. I am swinging a 15-8 on that engine. I also have a 16-8 as a spare that the engine swings nicely. But, I don't know about the four stroke.
CGr.
CGr.
12-02-2010, 06:36 AM
#4
My Feedback: (-1)
RE: Prop for OS 120 4 Stroke
I think Rod hit it pretty well with the 15. I was using an OS 1.20 pumper in my 2 meter Ariel and just started prop testing before I changed engines. I started with a 15X8 APC and do to ground clearence at the time 15 was as long as I could go. I found the 15X10 worked the best for me but that about as far as I got with the testing before I installed a YS.
