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OS .52 vs OS .61FX

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OS .52 vs OS .61FX

Old 01-08-2007, 02:27 PM
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Default OS .52 vs OS .61FX

Don't know why I'm asking - but which engine would you use on a Great Planes RV-4. The .52 is on the low end of the 4S scale and the .61 FX is off the charts . My concern is the weight and size of the FX on the nose. Don't neccessarily need unlimited vertical , but power is always good.


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