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Last Tuesday I finished the first round of drilling, which has only a minimum number of holes drilled.  The picture below shows the second round, all holes drilled to at least pilot size.

    As I wrote in the blog, I tested a rivet gun and have decided to back rivet the spar with the rivet gun instead of the hammer and bolt method.  To do that I needed a new compressor – here it is!  It is very nice and relatively quiet in a loud sort of way.