This is cool to watch, I would however caution skipping the grease on the spar not because you need the lubrication but because the grease would have a corrosion protection value. I would think about using an LPS-3 corrosion inhibiting grease there for that purpose.
I forgot to measure with a caliper before I pushed the wing on but that's likely about what I removed. I measured about 1/3 of the way and it was down a little over 0.01.
I'm removing the wing and sanding it thoroughly with 400 grit and applying LPS-3 before putting it back on. This first video was just getting the thing on.
Only a handful of bolts holding the center section spar .Why not remove it and remove excess material in a lathe .Or make a simple tool to spin the center section and sand it that way.
I can't justify buying a large enough lathe for this one thing. I've match drilled the holes for bolting them together and pulled the wing back off. Luckily the residue from the inside of the wing spar rubbed off and showed exactly where the high spots are (just a few near the bottom) so I can sand it smoth with much finer grit sandpaper and apply some LPS-3 before slipping it back on.
I really felt for you on this one..........
This is cool to watch, I would however caution skipping the grease on the spar not because you need the lubrication but because the grease would have a corrosion protection value. I would think about using an LPS-3 corrosion inhibiting grease there for that purpose.
Good point. I need to remove it to place the nuts for the final install so that will be a good time to do it.
I have been cautioned to never use teflon tape on fuel lines but rather use something like EZ turn lubricant.
My spars were .030 to .050 out of round . I had to have then straightened before i started the wings.
I forgot to measure with a caliper before I pushed the wing on but that's likely about what I removed. I measured about 1/3 of the way and it was down a little over 0.01.
Your going to ruin the center spar with ultra coarse sandpaper. Can anyone say stress risers?
I'm removing the wing and sanding it thoroughly with 400 grit and applying LPS-3 before putting it back on. This first video was just getting the thing on.
Only a handful of bolts holding the center section spar .Why not remove it and remove excess material in a lathe .Or make a simple tool to spin the center section and sand it that way.
I can't justify buying a large enough lathe for this one thing. I've match drilled the holes for bolting them together and pulled the wing back off. Luckily the residue from the inside of the wing spar rubbed off and showed exactly where the high spots are (just a few near the bottom) so I can sand it smoth with much finer grit sandpaper and apply some LPS-3 before slipping it back on.