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Inspection Ring Location

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Redtail

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I'm building a Pitts S1C but I would presume a S1S would be the same. The Steen Aero Plans, I'm building from, show the inspection rings to be located right over a rib at each end of the compression struts. This is not right I'm sure. My question is where are all you who are covering locating the inspection rings on the lower surface of the top wing and how many rings per side?

Thanks in advance
 

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