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  #11  
Old 07-11-2018, 08:30 AM
DHeal DHeal is online now
 
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A data point: My white-painted RV-12 with unfilled rivet heads now has 650 hours over 4 years. It is hangared and has never been washed (other than the occasional wipe-down with a damp rag and "dry cleaner/wax"). There is no sign of streaking, smoking or residue from any of the open rivet heads or the rivets themselves. Frankly, I am amazed at how well the pulled-rivets remain firmly attached to the skins. Over the years, I have seen many relatively low time, traditionally riveted, aluminum experimental aircraft with loosening, smoking AD rivets. Granted these aircraft are typically sporting larger engines and perhaps operate in more severe conditions than our RV-12s. As for filling the rivet heads, I see it as being cosmetic and IMHO not worth the considerable extra effort.

ps -- If I hook-up an in-flight vacuum cleaner to the wings' interior can I reduce boundary layer drag and enhance airflow adhesion??? ;<)
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Last edited by DHeal : 07-11-2018 at 08:34 AM.
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  #12  
Old 07-11-2018, 05:58 PM
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engineerofsorts engineerofsorts is offline
 
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Default and remember the effects of wax

Quote:
Originally Posted by Gagarin737 View Post
The reason for me to fill the rivet heads was to keep the dirt out. I saw an aircraft with unfilled rivets and that particular plane had black strips running from the rivets.
It took about 40 hours to fill/sand all rivets, not that bad.
If you apply any wax on and dark aircraft color, it really likes to collect in the un-filled madrell holes
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  #13  
Old 07-12-2018, 01:39 PM
AeroDog AeroDog is offline
 
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Quote:
Originally Posted by DHeal View Post
snip

ps -- If I hook-up an in-flight vacuum cleaner to the wings' interior can I reduce boundary layer drag and enhance airflow adhesion??? ;<)
I like this idea. Active boundary layer control plus thousands of little vortex generators disguised as rivet heads.

Jerre
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  #14  
Old 07-12-2018, 02:03 PM
rcarsey rcarsey is offline
 
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I've been thinking about filling the rivets ever since I found Geico's post..

can I do this and still be OK for going E-LSA? Or do I need to wait until after I get the AW certificate? For that matter, can I paint beforehand?
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  #15  
Old 07-13-2018, 12:21 PM
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Phantom30 Phantom30 is offline
 
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Quote:
Originally Posted by rcarsey View Post
I've been thinking about filling the rivets ever since I found Geico's post..

can I do this and still be OK for going E-LSA? Or do I need to wait until after I get the AW certificate? For that matter, can I paint beforehand?
I did mine b4 inspection (called it pre-painting prep).....Mel, a little help here on the official take.
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  #16  
Old 07-13-2018, 02:20 PM
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Mel Mel is online now
 
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Quote:
Originally Posted by Phantom30 View Post
I did mine b4 inspection (called it pre-painting prep).....Mel, a little help here on the official take.
I think most DARs would consider this minor enough for acceptance. However, it might be worthwhile to check with your inspector first.

Painting before inspection is definitely acceptable.
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