Almost Done with the Left Wing Superstructure

UPDATED!! Almost done with the left wing superstructure. Attached the first few nose ribs to the outboard end of the spar with no issues. These first few nose ribs have the aft flange removed. All work stopped when I tried to fit the first nose rib that had to be attached to the spar and also to the angle attached to the spar. Had to wait till 5:30pm to call Van's today and ask if it was OK to open up the holes in the spar from #31 to #30 because the LP4-4 rivets would not fit in the pre-drilled holes. Their answer was "yes", as I expected. They commented, "You are not building a monument!! It's an airplane!! A reference of course to my simple minded question. Also found that one has to ensure that the aft nose rib flange and the angle on the spar are 90 degree angles. After taking these precautions I found I still had to match drill a few of the rivet locations because they were extremely tight. Van's indicated it was more than acceptable to "touch drill" or "match drill" to #30 to get the rivet to fit after clecoing the parts. Be careful here, READ the steps and read the NOTES on the drawing figures. The rivet callouts are different. The rib the angle rivet is different than the spar to rib angle rivet. This is the first time LP4-4 rivets are used on the nose ribs. Riveting of the nose pieces was slow because many of them required the use of the small wedge as shown in the EAA videos for close quarters pop riveting techniques. See the EAA video via the link, it is in the sheet metal section.

EAA Video on Tight Place Riveting

A picture of the left wing super-structure tomorrow.

Time - 4 hours Total - 71 hours