What a great day today. Found out I got one of the three A's on the previous tests in my geography class, got to hang out with my girlfriend and my dad, and we had dinner together at the airport! Dad and I also got to finish the platenuts for the fuel tanks. As well as
countersinking the screw holes. The process in which we secured the platenuts was as follows.1) Drill all #40 holes.
2) Countersink all rivet holes.
3)Cleco platenuts on, then rivet.
4) Drill screw holes.
5) Countersink screw holes.
We countersunk the screw holes last because the plans suggest using a #30 countersink cutter in the hole, which is I believe a #12. If there's nothing to keep the cutter centered (platenut) then you will be left with a hole that's less than concentric. After a while of countersinking I finally found a method for countersinking that produces great results. Instead of using the air drill, we switched to our $15 corded drill and set it at a slow speed. Instead of obliterating the metal into dust producing somewhat nice results, it slowly cuts the metal and leave
s great results. The only real tedious part of this job was getting the countersink cage set to the proper depth, but once it was set it was smooth sailing. After a few hours of work, the first step of the wing kit is complete. Tomorrow we'll be starting the nut plates for the access plates after we get out of work. Excited to be back in action!
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