I'm about to attach the outer leading edges to the spar but have been unable to find any reference to whether the rivet holes in the skins are dimpled or countersunk, and depending on what happens to the skin holes, whether the holes in the spar are dimpled or countersunk.
Can anybody enlighten me?
Thanks.
Those rivets are dimpled on my 6A wings. The skins are .025. I also dimpled the spar flanges to match the skins.
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Paul vS (yes I'm also a Van)
Building RV-6A #22320 O-320 FP. Wings and tail complete, working on fuselage
Flying my low-n-slow Aeroprakt A-22 and the aero club's RV-9A while I build
Same here, dimpled. If it can be dimpled instead of countersunk, do it. makes for a stronger joint and less risk of screwing up a countersink. 0.040 is generally about the max you can dimple.
Since you are on the wings, one area to be careful when dimpling is the rear spar flange, you can inadvertently bend the flange with the tool since it is >90 degrees.
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Colin P.
RV-6A #20603
Complete 5/10/19
PP SEL / A&P
I donate every year on my B-Day (in Dec), but donated early in Sep'19.
Same here, dimpled. If it can be dimpled instead of countersunk, do it. makes for a stronger joint and less risk of screwing up a countersink. 0.040 is generally about the max you can dimple.
Since you are on the wings, one area to be careful when dimpling is the rear spar flange, you can inadvertently bend the flange with the tool since it is >90 degrees.
Sounds like me. Dimple everything that you can and only countersink what cannot be dimpled. (I do countersink when the plans call for countersinking pieces that I can dimple.)
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Gary A. Sobek
NC25 RV-6 Flying
3,400+ hours Where is N157GS Building RV-8 S/N: 80012
To most people, the sky is the limit.
To those who love aviation, the sky is home.
Thanks folks, I've heard the rule previously of "Dimple when you can, countersink when you have to" so dimpling works for me.
Appreciate the assistance.
Outer leading edge rivets
Linear Mode
