RCU Forums - correct prop - os.91 fx ringed

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vivekbali

12-15-2008 02:23 AM

correct prop - os.91 fx ringed

can someone advice which prop can i use on a YAK 54 (63" span). i have os.91fx ringed engine and have the following props in stock : 14x4 / 14x6 / 15x6 / 16x6... thx

w8ye	12-15-2008 02:38 AM

RE: correct prop - os.91 fx ringed

I like the 14-6

Harry Lagman

12-15-2008 05:21 AM

RE: correct prop - os.91 fx ringed

Vivek, based on my experience with about half a dozen Fx .91s, they are pretty tolerant of a range of operating rpm - the ones I have worked with have been happy between about 9500 and 12K. Try out a few of those props and report back which one flies the model best. Sometimes just trying stuff out is better than seeking internet advice - propping a plane is a good example.

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