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RV-7 wing rib hole diameter

Paul from Flyleds

Well Known Member
Advertiser
Hi brains trust

Could someone please tell me what the diameter of the lightening hole forward of the spar in the wing rib is please?

7-wingtip.png


Can I also assume that the RV-6 wing is the same?

Thanks in advance,

 
RV-6

On my RV-6 wing it is about 4 and a half inches.

I fly cut mine to about 4 7/16 and I would not want to go any more than 4 5/8 inches for sure.

112-116 millimeters on the metric side.
 
Paul,
Just measured mine and it is just shy of 4-24/32" . 4.745" exactly. I suppose prep, durburring, priming etc would could change that number some. Both right and left measure the same on my 7 wings.
 
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