1.3 Hours -
Back to countersinking again tonight. For some reason, I really hate countersinking. However, I’ve found it to be a bit easier when I use my electric drill vs. the air drill. Maybe it is the slower speed/higher torque of the electric drill, but it seems to produce a nicer countersink with less chattering.
I finished countersinking all of the holes for attaching platenuts in the left spar flanges. All that I had remaining were the holes used for attaching the inspection covers. Then, I riveted on all of the tank attach platenuts to the top of the spar. Once riveted on, I used the platenut as a guide for countersinking the center hole for the #8 screws that will be used to attach the tanks. Over an hour of work, and I still have to finish all of the platenuts on the bottom of the spar…and all of the platenuts on the right spar. Just a little repetitive.
After countersinking the outer holes, the platenuts can be riveted onto the spar.
The platenuts are riveted onto the underside of the spar.
Once the platenut is riveted on, the center hole can be countersunk for a #8 screw.
Me countersinking. I'm using the air drill here, but I think I prefer the electric drill for this task.
